JB/T 3019-1999 Indoor and outdoor explosion-proof and corrosion-resistant low-voltage electrical appliances

This standard specifies the requirements, test methods, inspection rules and markings, instruction manuals, packaging, transportation, storage, etc. for indoor and outdoor explosion-proof and corrosion-resistant low-voltage electrical appliances (hereinafter referred to as electrical appliances). This standard applies to electrical appliances used in indoor and outdoor explosion-hazardous places where explosive gas mixtures and corrosive media exist. This standard does not apply to electrical appliances used in explosion-hazardous places where explosive dust exists. JB/T 3019-1999 Indoor and outdoor explosion-proof and corrosion-resistant low-voltage electrical appliances JB/T3019-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T3019
Indoor and outdoor explosion-proof and corrosion-proof low-voltage apparatus1999-08-06
Wa Xi Ji Dong
2000-01-01bzxz.net
JB/T3019
This standard is a revision of JB3019-81 "Outdoor explosion-proof and corrosion-proof low-voltage apparatus". The technical standard supplements and modifies the technical requirements, test methods and test rules in the original standard. This standard adds the use environment conditions and relevant technical requirements for indoor explosion-proof and corrosion-proof low-voltage apparatus. This standard replaces JB3019-81 from the date of implementation. This standard is proposed and approved by Shenyang Electric Drive Research Institute. This standard is initiated by Shenyang Electric Drive Research Institute. The drafting units of this standard are: Zhejiang Huarong Explosion-proof Electrical Appliance Manufacturing Company, Delixi Group Taijin Explosion-proof Electrical Appliance Manufacturing Company, Shenchao Explosion-proof Equipment Factory.
The main drafters of this standard are: Hou Surong, Hu Zhirong, Huang Jinjun, Tan Jing. This standard was first issued in October 1981 and revised for the first time in 1999. This standard is entrusted to Shenyang Electric Drive Research Institute for interpretation. 1
1 Scope
Ji Jia Xin Kui Wa Yi Dao
Indoor and outdoor explosion-proof and corrosion-proof low-voltage apparatus JB/T30191999
With JB301981
This standard specifies the requirements, test methods, inspection rules and signs, instruction manuals, packaging, transportation, storage and other contents of indoor and outdoor explosion-proof and corrosion-proof low-voltage electrical appliances (hereinafter referred to as electrical appliances). This standard applies to electrical appliances used in indoor and outdoor explosion-hazardous places where explosive gas mixtures and corrosive media exist. This standard does not apply to electrical appliances used in explosion-hazardous places where explosive dust exists. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of the standards through reference in this standard. When the standards are published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB 3836.1—1983
GB 3836.2—1983
GB 3836.3—1983
GB 3836.4—1983
GB 3836.5—1987
GB 3836.6—1987
GB 3836.71987
GB 3836.8—1987
GB 3836.9--1990
GB 3836.10—1991
GB/T 4942.21993
GB 9969.1—1998
Explosion-proof electrical equipment for explosive atmospheres Tongchuan requires explosion-proof electrical equipment for explosive atmospheres Flameproof medium gas equipment "d" Explosion-proof gas equipment for explosive atmospheres Increased safety electrical equipment "e" Explosion-proof electrical equipment for explosive atmospheres Intrinsically safe circuits and electrical equipment "i\ Anti-condensation electrical equipment for explosive atmospheres Pressure-stopping electrical equipment "p\ Explosion-proof electrical equipment for explosive atmospheres Oil-filled medium \t equipment\ Explosion-proof gas equipment for explosive atmospheres Sand-filled electrical equipment" equipment " 9\Flameproof electrical equipment for explosive atmospheres Spark-free electrical equipment "nExplosion-proof electrical equipment for explosive atmospheres Encapsulated electrical equipment "m\Explosion-proof electrical equipment for explosive atmospheres Hermetic equipment "\Protection levels of low-voltage electrical enclosures (eqvIEC60947-1:1988) General provisions for industrial product instructions
GB/T14048.1-1993 General provisions for low-voltage switchgear and controlgear (2V IFC60947-1:1988) JB/T 834-1999
JB4324-1986
JB/T 4375—1999
3. Symbols
Technical requirements for tropical low-voltage electrical appliances
Test methods for chemical gas corrosion of electrical products
External and internal corrosion of electrical productsAmbient conditions for useFIIndoor protection against moderate corrosion:
F2Indoor protection against strong corrosion;
WOutdoor protection against light corrosion:
WA1999-08-06
2000-01-01
WF1Outdoor protection against moderate corrosion:
WF2Outdoor protection against strong corrosion:
KClimatic conditions:
Chemically active material conditions:
SMechanical activity Material conditions:
4 Product classification
Electrical appliances are classified according to their protection types:
a) Indoor explosion-proof and medium corrosion-proof type;
b) Indoor explosion-proof and strong corrosion-proof type;
Outdoor explosion-proof and light corrosion-proof type;
d) Outdoor explosion-proof and medium corrosion-proof type
) Outdoor explosion-proof and strong corrosion-proof type.
5 Requirements
JB/T3019
5.1 In addition to meeting the requirements of this standard, the appliance shall also meet the requirements of various product standards. 5.2 Environmental conditions for electrical appliances
5.2.1 The appliance shall work reliably under the climatic and biological conditions specified in Table 1. Electrical protection type
Environmental parameters
High temperature ℃
Relative temperature %
Solar radiation W/m2
Ambient air movement m/s
Rainfall intensity mnvmin
Icing and condensation conditions
Fungus, fungus
Harmful animals
The letter "L" indicates that some parameters are slightly lower than the original level. In the medium and strong corrosive environment, the influence of mold and fungus on electrical appliances is not the main factor, so no regulations are made. 2
JB/T3019
5.2.2 Electrical appliances should work reliably under the environmental conditions of chemically active substances and mechanically active substances specified in Table 2. 5.2.3 The "3\" in the environmental condition levels specified in this standard (such as codes 3KX, 3CX and 4KX, 4CX, etc.) indicates a place with climate protection; "4\" indicates a place without climate protection. Table 2
Electrical protection type
Grade of chemically active substances
Chemically active substances
Oxygen dioxide
Oxygen sulfide
Hydrogen hydride
Hydrogen fluoride
Nitrogen oxides
Grade of mechanically active substances
Mechanically detergency substances
Sand mg/m
Floating dust mg/m3
Settling dust mg/m'd
Content mghn (average value)
(average value)
1 When the average concentration of one or more chemically active substances in the environment meets the values ​​in Table 2, it belongs to this level. 2 The average value is the average of the long-term integral value.
3 The number of nitrogen oxides in the test is equivalent to the number of nitrogen trioxide. $3 Anti-corrosion performance
5.3.1 Outdoor explosion-proof and light corrosion-proof electrical appliances shall comply with 4.3 of JB/T 834-1999 Article 5.3.2 Indoor explosion-proof and medium-corrosion-proof and outdoor explosion-proof and medium-corrosion-proof electrical appliances shall meet the following requirements after a 2-day corrosion test in accordance with Article 6.3 of this standard and the provisions of JB4324: a) The insulation resistance between the casing and the conductive parts of the appliance and between the mutually insulated conductive parts shall not be less than 2M(2); b) The dielectric properties of the appliance shall comply with the provisions of Article 7.2.3.2 of GB/T14048.1-1993; c) The action and operation performance of the appliance shall be flexible and reliable and meet the provisions of the product standard; d) The conductive parts, magnetic parts, metal structural parts and fasteners on the casing shall not show obvious corrosion such as verdigris and rust (except for the core pole surface); e) The paint layer on the outer surface shall not be soft or have obvious peeling.Bubbles with a diameter of more than 1 μm should not be common. The maximum diameter of individual large bubbles should not be more than 10mm on castings and less than 5mm on steel plate components. No metal corrosion should be observed (except for weld seams, casting surface particles, sharp corners and mechanical damage). The plastic shell and plastic parts on the shell should not bubble, deform or crack. Rubber parts should not corrode, delaminate, crack, deform or become sticky. The hardness change of the sealing gasket should not be greater than 20% before the test. The nameplate should not be corroded, lifted or fallen off. The writing on the nameplate should be clear. The insulation surface of explosion-proof electrical appliances should not be corroded. The conductive parts and fasteners in the junction box should not have obvious corrosion spots. 5.3.3 Indoor explosion-proof and highly corrosion-resistant electrical appliances and outdoor explosion-proof and highly corrosion-resistant electrical appliances should be carried out in accordance with the provisions of National Standard 6.3 and JB 4324 for 10 d, the corrosion test piece shall comply with the provisions of Article 5.3.2 of this standard. 5.4 Explosion-proof performance
The explosion-proof performance of the electrical appliance after the corrosion test shall comply with the relevant provisions of GB 3836.1-3836.10. 5.5 External protection performance
The external protection performance of the electrical appliance shall not be lower than the provisions of IP54. 5.6 Fasteners on the shell
All steel fasteners (nuts, screws, screws and washers, etc.) on the outer shell of the device shall be galvanized or other anti-corrosion treatments shall be carried out. For heavy-duty devices, after assembly, the exposed fasteners on the shell shall be sealed with chlorinated or chlorinated rubber seals. 5.7 Grounding screw
The grounding screw of the device shall be made of stainless metal materials, or undergo reliable anti-corrosion treatments. 5.8 Painting of the outer shell surface
The coating of the outer shell surface of the electrical appliance shall comply with the requirements of B2420. The outer surface of outdoor explosion-proof and corrosion-resistant electrical appliances shall be painted with light-colored paint (gray silver gray, light gray or concave color). 5.9 Anti-corrosion treatment of the flameproof surface
The flameproof surface of the metal material of the flameproof electrical appliance shall be treated with anti-corrosion. It is allowed to apply anti-rust oil (such as 204-1 replacement anti-rust grease) that can prevent corrosion and ensure explosion-proof performance. 5.10 Temperature rise of outdoor flame-proof and corrosion-resistant electrical appliances
The influence of sunlight on its temperature rise shall be considered in the design of outdoor explosion-proof and corrosion-resistant electrical appliances. The temperature design can be carried out according to the maximum ambient temperature of +40, but a certain margin must be left to offset the influence of sunlight. The value of the temperature rise margin is shown in Table 3. Table 3
Shell color
Silver gray for sale, light gray for sale
3.11 Low temperature performance of outdoor explosion-proof and corrosion-resistant electrical appliances
Temperature rise margin
When the lowest temperature of the environment of outdoor explosion-proof and corrosion-resistant electrical appliances is lower than -20, the influence of low temperature on the performance of the electrical appliances should be considered and the following regulations should be met.
When designing and manufacturing outdoor explosion-proof and corrosion-resistant electrical appliances, external materials, electrical parts, electronic components, connecting wires, structural parts, oil, etc. with good low temperature resistance should be selected to ensure that the electrical appliances have reliable electrical performance and explosion-proof safety performance under low temperature conditions. 4
6 Test methods
JB/T30191999
1 General inspection, appearance inspection, action performance inspection, explosion-proof performance test of electrical appliances shall be carried out in accordance with the relevant provisions of GB/T14048.1 and GB3836.1-3836.10 and corresponding product standards. 6.2 The dielectric performance test of electrical appliances shall be carried out in accordance with the provisions of 8.2.3.4 of GB/T14048.1-1993. 6.3 The corrosion test shall be carried out in accordance with the test case with the initial theoretical concentration of 17.51 ​​mg/L sulfur dichloride specified in Table 1 of B4324. Note: If it is necessary to test in accordance with other chemical gases specified in JB4324, it should be agreed upon at the time of ordering. When conducting the corrosion test, the insulation resistance of the electrical appliances shall be measured in the test box (room) within 3b before the end of the low temperature stage of the last cycle of the test, and then the dielectric performance test shall be carried out. When there are many samples in the same test box (room) and the time is insufficient, the test conditions are allowed to be maintained until the test is completed, but the extension time shall not exceed 41. 6.4 The action performance and operation performance test of the device shall be carried out as soon as possible after the dielectric performance test by taking the samples out of the test box (room). 6.5 The appearance inspection shall be carried out after the action performance and operation performance test. 6.6 The enclosure protection grade test of the device shall be carried out in accordance with the provisions of GB/4942.2. 6.7 The temperature rise test of the device shall be carried out in accordance with the provisions of Article 8.2.3.3 of GB14048.1-1993. Inspection rules
7.1 The test of electrical appliances is divided into type test and factory inspection . 7.2 Type test
7.2.1 The electrical appliance shall be subject to type test in any of the following situations. a) Before the development and production of new products or before the transfer and production of products; b) After formal production, if there are major changes in product design, manufacturing process, raw materials used, and structure, which may affect the working performance of the product;
) When the product is resumed after a long period of suspension; d) When there is a significant difference between the factory inspection results and the previous type test results; e) When the national quality supervision agency proposes a type test requirement. 7.2.2 In addition to all the test items specified in the corresponding product standards, GB3836.1~3836.10, the type test items of electrical appliances also include corrosion tests, shell protection performance tests and low temperature tests specified in this standard. 7.2.3 The matters related to flameproof inspection, such as the submission and modification of drawings, inspection and testing of samples, and the issuance of "explosion-proof certificates", shall be carried out in accordance with the provisions of GB 3836.1.
7.2.4 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series of shells with different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 65 External protection performance
The external protection performance of electrical appliances shall not be lower than the requirements of IP54. 5.6 Fasteners on the shell
All steel fasteners (nuts, screws, screws and washers, etc.) on the outer shell of the device shall be galvanized or other anti-corrosion treatments shall be carried out. After the heavy corrosion device is assembled, the exposed fasteners on the shell shall be sealed with chlorinated or chlorinated rubber seals. 5.7 Grounding screw
The grounding screw of the device shall be made of stainless metal materials, or undergo reliable anti-corrosion treatment. 5.8 Painting of the shell surface
The coating of the outer shell surface of the electrical appliance shall comply with the requirements of B2420. The outer surface of outdoor explosion-proof and corrosion-resistant electrical appliances shall be painted with light-colored paint (gray, silver gray, light gray or concave color). 5.9 Anti-corrosion treatment of explosion-proof surface
The explosion-proof surface of metal materials of explosion-proof electrical appliances should be treated with anti-corrosion. It is allowed to apply anti-rust oil (such as 204-1 replacement anti-rust grease) that can prevent corrosion and ensure explosion-proof performance. 5.10 Temperature rise of outdoor flameproof and corrosion-resistant electrical appliances
When designing outdoor explosion-proof and corrosion-resistant electrical appliances, the influence of sunlight on their temperature rise should be considered. The temperature design can be carried out according to the maximum ambient temperature of +40, but a certain margin must be left to offset the influence of sunlight. The value of temperature rise margin is shown in Table 3. Table 3
Shell color
Silver gray is available, light gray is available
3.11 Low temperature performance of outdoor explosion-proof and corrosion-resistant electrical appliances
Temperature rise margin
When the minimum temperature of the environment of outdoor explosion-proof and corrosion-resistant electrical appliances is lower than -20, the influence of low temperature on the performance of the electrical appliances should be considered and should comply with the following regulations.
When designing and manufacturing external explosion-proof and corrosion-resistant electrical appliances, external materials, electrical parts, electronic components, connecting wires, structural parts, oil, etc. with good low-temperature resistance should be selected to ensure that the electrical appliances have reliable electrical performance and explosion-proof safety performance under low-temperature conditions. 4
6 Test methods
JB/T30191999
1 General inspection, appearance inspection, action performance inspection, and explosion-proof performance test of electrical appliances shall be carried out in accordance with the relevant provisions of GB/T14048.1 and GB3836.1-3836.10 and corresponding product standards. 6.2 The dielectric performance test of electrical appliances shall be carried out in accordance with the provisions of 8.2.3.4 of GB/T14048.1-1993. 6.3 The corrosion test shall be carried out in accordance with the test case with the initial theoretical concentration of 17.51 ​​mg/L sulfur dichloride specified in Table 1 of B4324. Note: If it is necessary to test with other chemical gases specified in JB4324, it should be agreed upon at the time of ordering. When conducting corrosion tests, the insulation resistance of the electrical appliance should be measured in the test chamber (room) within 3b before the end of the low-temperature stage of the last test cycle, and then the dielectric performance test should be carried out. When there are many samples in the same test chamber (room) and time is insufficient, it is allowed to maintain the test conditions until the test is completed, but the extension time shall not exceed 4l. 6.4 The action performance and operating performance tests of the device should be carried out as soon as possible after the dielectric performance test by taking the samples out of the test chamber (room). 6.5 The appearance inspection should be carried out after the action performance and operating performance tests. 6.6 The enclosure protection grade test of the device shall be carried out in accordance with the provisions of GB/4942.2. 6.7 The temperature rise test of the device shall be carried out in accordance with the provisions of Article 8.2.3.3 of GB14048.1-1993. Inspection rules
7.1 The test of electrical appliances is divided into type test and factory inspection . 7.2 Type test
7.2.1 The electrical appliance shall be subject to type test in any of the following situations. a) Before the development and production of new products or before the transfer and production of products; b) After formal production, if there are major changes in product design, manufacturing process, raw materials used, and structure, which may affect the working performance of the product;
) When the product is resumed after a long period of suspension; d) When there is a significant difference between the factory inspection results and the previous type test results; e) When the national quality supervision agency proposes a type test requirement. 7.2.2 In addition to all the test items specified in the corresponding product standards, GB3836.1~3836.10, the type test items of electrical appliances also include corrosion tests, shell protection performance tests and low temperature tests specified in this standard. 7.2.3 The matters related to flameproof inspection, such as the submission and modification of drawings, inspection and testing of samples, and the issuance of "explosion-proof certificates", shall be carried out in accordance with the provisions of GB 3836.1.
7.2.4 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series of shells with different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 65 External protection performance
The external protection performance of electrical appliances shall not be lower than the requirements of IP54. 5.6 Fasteners on the shell
All steel fasteners (nuts, screws, screws and washers, etc.) on the outer shell of the device shall be galvanized or other anti-corrosion treatments shall be carried out. After the heavy corrosion device is assembled, the exposed fasteners on the shell shall be sealed with chlorinated or chlorinated rubber seals. 5.7 Grounding screw
The grounding screw of the device shall be made of stainless metal materials, or undergo reliable anti-corrosion treatment. 5.8 Painting of the shell surface
The coating of the outer shell surface of the electrical appliance shall comply with the requirements of B2420. The outer surface of outdoor explosion-proof and corrosion-resistant electrical appliances shall be painted with light-colored paint (gray, silver gray, light gray or concave color). 5.9 Anti-corrosion treatment of explosion-proof surface
The explosion-proof surface of metal materials of explosion-proof electrical appliances should be treated with anti-corrosion. It is allowed to apply anti-rust oil (such as 204-1 replacement anti-rust grease) that can prevent corrosion and ensure explosion-proof performance. 5.10 Temperature rise of outdoor flameproof and corrosion-resistant electrical appliances
When designing outdoor explosion-proof and corrosion-resistant electrical appliances, the influence of sunlight on their temperature rise should be considered. The temperature design can be carried out according to the maximum ambient temperature of +40, but a certain margin must be left to offset the influence of sunlight. The value of temperature rise margin is shown in Table 3. Table 3
Shell color
Silver gray is available, light gray is available
3.11 Low temperature performance of outdoor explosion-proof and corrosion-resistant electrical appliances
Temperature rise margin
When the minimum temperature of the environment of outdoor explosion-proof and corrosion-resistant electrical appliances is lower than -20, the influence of low temperature on the performance of the electrical appliances should be considered and should comply with the following regulations.
When designing and manufacturing external explosion-proof and corrosion-resistant electrical appliances, external materials, electrical parts, electronic components, connecting wires, structural parts, oil, etc. with good low-temperature resistance should be selected to ensure that the electrical appliances have reliable electrical performance and explosion-proof safety performance under low-temperature conditions. 4
6 Test methods
JB/T30191999
1 General inspection, appearance inspection, action performance inspection, and explosion-proof performance test of electrical appliances shall be carried out in accordance with the relevant provisions of GB/T14048.1 and GB3836.1-3836.10 and corresponding product standards. 6.2 The dielectric performance test of electrical appliances shall be carried out in accordance with the provisions of 8.2.3.4 of GB/T14048.1-1993. 6.3 The corrosion test shall be carried out in accordance with the test case with the initial theoretical concentration of 17.51 ​​mg/L sulfur dichloride specified in Table 1 of B4324. Note: If it is necessary to test with other chemical gases specified in JB4324, it should be agreed upon at the time of ordering. When conducting corrosion tests, the insulation resistance of the electrical appliance should be measured in the test chamber (room) within 3b before the end of the low-temperature stage of the last test cycle, and then the dielectric performance test should be carried out. When there are many samples in the same test chamber (room) and time is insufficient, it is allowed to maintain the test conditions until the test is completed, but the extension time shall not exceed 4l. 6.4 The action performance and operating performance tests of the device should be carried out as soon as possible after the dielectric performance test by taking the samples out of the test chamber (room). 6.5 The appearance inspection should be carried out after the action performance and operating performance tests. 6.6 The enclosure protection grade test of the device shall be carried out in accordance with the provisions of GB/4942.2. 6.7 The temperature rise test of the device shall be carried out in accordance with the provisions of Article 8.2.3.3 of GB14048.1-1993. Inspection rules
7.1 The test of electrical appliances is divided into type test and factory inspection . 7.2 Type test
7.2.1 The electrical appliance shall be subject to type test in any of the following situations. a) Before the development and production of new products or before the transfer and production of products; b) After formal production, if there are major changes in product design, manufacturing process, raw materials used, and structure, which may affect the working performance of the product;
) When the product is resumed after a long period of suspension; d) When there is a significant difference between the factory inspection results and the previous type test results; e) When the national quality supervision agency proposes a type test requirement. 7.2.2 In addition to all the test items specified in the corresponding product standards, GB3836.1~3836.10, the type test items of electrical appliances also include corrosion tests, shell protection performance tests and low temperature tests specified in this standard. 7.2.3 The matters related to flameproof inspection, such as the submission and modification of drawings, inspection and testing of samples, and the issuance of "explosion-proof certificates", shall be carried out in accordance with the provisions of GB 3836.1.
7.2.4 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series of shells with different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 611 Low temperature performance of outdoor explosion-proof and corrosion-resistant electrical appliances
Temperature rise margin
When the lowest temperature of the environment of outdoor explosion-proof and corrosion-resistant electrical appliances is lower than -20, the influence of low temperature on the performance of the electrical appliances should be considered and the following regulations should be met.
When designing and manufacturing outdoor explosion-proof and corrosion-resistant electrical appliances, external materials, electrical parts, electronic components, connecting wires, structural parts, oils, etc. with good low temperature resistance should be selected to ensure that the electrical appliances have reliable electrical performance and explosion-proof safety performance under low temperature conditions. 4
6 Test methods
JB/T30191999
1 General inspection, appearance inspection, action performance inspection, explosion-proof performance test of electrical appliances shall be carried out in accordance with the relevant provisions of GB/T14048.1 and GB3836.1-3836.10 and corresponding product standards. 6.2 The dielectric performance test of electrical appliances shall be carried out in accordance with the provisions of 8.2.3.4 of GB/T14048.1-1993. 6.3 The corrosion test shall be carried out in accordance with the test case with the initial theoretical concentration of 17.51 ​​mg/L sulfur dichloride specified in Table 1 of B4324. Note: If it is necessary to test in accordance with other chemical gases specified in JB4324, it should be agreed upon at the time of ordering. When conducting the corrosion test, the insulation resistance of the electrical appliances shall be measured in the test box (room) within 3b before the end of the low temperature stage of the last cycle of the test, and then the dielectric performance test shall be carried out. When there are many samples in the same test box (room) and the time is insufficient, the test conditions are allowed to be maintained until the test is completed, but the extension time shall not exceed 41. 6.4 The action performance and operation performance test of the device shall be carried out as soon as possible after the dielectric performance test by taking the samples out of the test box (room). 6.5 The appearance inspection shall be carried out after the action performance and operation performance test. 6.6 The enclosure protection grade test of the device shall be carried out in accordance with the provisions of GB/4942.2. 6.7 The temperature rise test of the device shall be carried out in accordance with the provisions of Article 8.2.3.3 of GB14048.1-1993. Inspection rules
7.1 The test of electrical appliances is divided into type test and factory inspection . 7.2 Type test
7.2.1 The electrical appliance shall be subject to type test in any of the following situations. a) Before the development and production of new products or before the transfer and production of products; b) After formal production, if there are major changes in product design, manufacturing process, raw materials used, and structure, which may affect the working performance of the product;
) When the product is resumed after a long period of suspension; d) When there is a significant difference between the factory inspection results and the previous type test results; e) When the national quality supervision agency proposes a type test requirement. 7.2.2 In addition to all the test items specified in the corresponding product standards, GB3836.1~3836.10, the type test items of electrical appliances also include corrosion tests, shell protection performance tests and low temperature tests specified in this standard. 7.2.3 The matters related to flameproof inspection, such as the submission and modification of drawings, inspection and testing of samples, and the issuance of "explosion-proof certificates", shall be carried out in accordance with the provisions of GB 3836.1.
7.2.4 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series of shells with different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 611 Low temperature performance of outdoor explosion-proof and corrosion-resistant electrical appliances
Temperature rise margin
When the lowest temperature of the environment of outdoor explosion-proof and corrosion-resistant electrical appliances is lower than -20, the influence of low temperature on the performance of the electrical appliances should be considered and the following regulations should be met.
When designing and manufacturing outdoor explosion-proof and corrosion-resistant electrical appliances, external materials, electrical parts, electronic components, connecting wires, structural parts, oils, etc. with good low temperature resistance should be selected to ensure that the electrical appliances have reliable electrical performance and explosion-proof safety performance under low temperature conditions. 4
6 Test methods
JB/T30191999
1 General inspection, appearance inspection, action performance inspection, explosion-proof performance test of electrical appliances shall be carried out in accordance with the relevant provisions of GB/T14048.1 and GB3836.1-3836.10 and corresponding product standards. 6.2 The dielectric performance test of electrical appliances shall be carried out in accordance with the provisions of 8.2.3.4 of GB/T14048.1-1993. 6.3 The corrosion test shall be carried out in accordance with the test case with the initial theoretical concentration of 17.51 ​​mg/L sulfur dichloride specified in Table 1 of B4324. Note: If it is necessary to test in accordance with other chemical gases specified in JB4324, it should be agreed upon at the time of ordering. When conducting the corrosion test, the insulation resistance of the electrical appliances shall be measured in the test box (room) within 3b before the end of the low temperature stage of the last cycle of the test, and then the dielectric performance test shall be carried out. When there are many samples in the same test box (room) and the time is insufficient, the test conditions are allowed to be maintained until the test is completed, but the extension time shall not exceed 41. 6.4 The action performance and operation performance test of the device shall be carried out as soon as possible after the dielectric performance test by taking the samples out of the test box (room). 6.5 The appearance inspection shall be carried out after the action performance and operation performance test. 6.6 The enclosure protection grade test of the device shall be carried out in accordance with the provisions of GB/4942.2. 6.7 The temperature rise test of the device shall be carried out in accordance with the provisions of Article 8.2.3.3 of GB14048.1-1993. Inspection rules
7.1 The test of electrical appliances is divided into type test and factory inspection . 7.2 Type test
7.2.1 The electrical appliance shall be subject to type test in any of the following situations. a) Before the development and production of new products or before the transfer and production of products; b) After formal production, if there are major changes in product design, manufacturing process, raw materials used, and structure, which may affect the working performance of the product;
) When the product is resumed after a long period of suspension; d) When there is a significant difference between the factory inspection results and the previous type test results; e) When the national quality supervision agency proposes a type test requirement. 7.2.2 In addition to all the test items specified in the corresponding product standards, GB3836.1~3836.10, the type test items of electrical appliances also include corrosion tests, shell protection performance tests and low temperature tests specified in this standard. 7.2.3 The matters related to flameproof inspection, such as the submission and modification of drawings, inspection and testing of samples, and the issuance of "explosion-proof certificates", shall be carried out in accordance with the provisions of GB 3836.1.
7.2.4 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series of shells with different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 64 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series with different shells but different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 64 There should be no less than 2 electrical appliances used for type testing. Only when both test products are qualified can the type test be considered qualified. Otherwise, the reasons must be analyzed and technical measures must be taken to improve the design, process, tooling, etc. and then re-test until the type test is qualified. 7.2.5 For products of the same series of shells with the same structure, process and materials, and products of the same series with different shells but different internal components, it is allowed to select a representative product for testing. If it passes the test, the series of products can be considered qualified. 7.1.6 The provisions of 6.2.6 of this standard are only applicable to corrosion tests and shell protection grade tests of electrical appliances, and are not applicable to explosion-proof performance, action performance tests and operational performance tests of electrical appliances. 7.3 Factory inspection
7.3.1 Each electrical appliance must pass the inspection and be accompanied by documents proving the quality of the product before it can leave the factory. 7.3.2 Factory inspection items
a) General inspection;
b) Appearance inspection:
) Flameproof parameter inspection;
d) Action (operation) performance inspection:
e) Static strength test;
1) Power frequency withstand voltage test.
8 Marking, instructions for use
JB/T3019
8.1, The electrical appliance should have a clear, permanent embossed mark "Ex\" on the obvious part of the shell. 8.2 The electrical appliance shall have a nameplate fixed on it in an obvious place. The contents of the nameplate are as follows: a) Product model and name (the product model shall be followed by the anti-corrosion code, such as F1, F2W, WF1 or WF2); b) Shell protection grade; c) There is an obvious mark "Ex\" on the upper right corner; d) Explosion-proof mark (explosion-proof mark, category, level, temperature group); d) Electrical parameters (such as rated working voltage, rated working current, etc.); f) Explosion-proof certificate number; n) Manufacturer's name or trademark; n) Date of manufacture or number.
8.3 The product should be shortened to include a user manual. The drafting and presentation of the user manual should comply with the relevant provisions of GB9969.1. 9 Packaging, transportation, and storage
9.1 Products shipped should be packed to prevent losses during transportation and meet the requirements of moisture and dust resistance. 9.2 The packaging of electrical appliances should be suitable for land and water transportation and storage requirements. 9.3 The words and signs on the outside of the packaging box should include the following: a) Name and address of the consignee:
b) Product model and name:
c) Manufacturer name:
d) Gross weight (kg)
e) Packing box size;
Markings such as "upward", "moisture-proof", "rainproof", "handle with care" and other words and symbols. 9.4 The technical documents supplied with the product include: a) Packing list;
b) Product certificate;
c) Product instruction manual.
9.5 The packaging box shall not be exposed to rain during transportation. The product shall be placed in a warehouse without rain or snow, with good air circulation, ambient temperature not higher than 40℃, not lower than -25℃, and relative humidity not greater than 90%. 6
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