GB 18014-1999 Polyvinyl chloride insulated wire for electric detonator detonation

This standard specifies the product classification, code, model, technical requirements, test methods, inspection rules, packaging, marking and storage of polyvinyl chloride insulated wires for detonating electric detonators for engineering blasting (hereinafter referred to as detonating wires). This standard applies to copper core and galvanized steel core polyvinyl chloride insulated wires for detonating electric detonators. GB 18014-1999 Polyvinyl chloride insulated wires for detonating electric detonators GB18014-1999 Standard download decompression password: www.bzxz.net

GB18014—1999
This standard is the first national standard formulated on the basis of the machinery industry standard JB 8309—1996 and the coal industry standard MT 377--1995. There is no corresponding international standard at present. Appendix A of this standard is the appendix of the standard.
From the date of implementation of this standard, JB8309-1996 and MT377-1995 shall be abolished. This standard is proposed by the State Machinery Industry Bureau. This standard is drafted by the National Wire and Cable Standardization Technical Committee. The drafting units of this standard are: Shanghai Cable Research Institute, Fushun Branch of the Coal Research Institute, Wuhan Blasting Wire Factory, Shenyang No. 23 Factory, Tianjin North China Wire Factory, Fushun Huafeng Industrial Co., Ltd., Tianchaoshan Mining Bureau No. 167 Factory. The main drafters of this standard are Zhang Dihua, Fu Baocan, Lei Kejian, Po Weiguang, Yuan Boyu, Lu Hua, and Lin Suying. 1 Scope
National Standard of the People's Republic of China
PVC insulated wires for ignitionof electric detonators
GB 18014—1999
This standard specifies the product classification, code, model, technical requirements, test methods, inspection rules, packaging, marking and storage of polyvinyl chloride insulated wires for ignitionof electric detonators for engineering blasting (hereinafter referred to as detonating wires). This standard is applicable to polyvinyl chloride insulated wires with galvanized steel core for ignition of electric detonators. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. All parties using this standard should explore the possibility of using the latest version of the following standards. GB/T2951.1—1997 General test methods for cable insulation and sheath materials Part 1: General test methods to Section 1: Thickness and dimensions measurement - Mechanical properties test (idtIEC 811-1-1:1993) GB/T 3048.4—1994 Electrical test methods for wires and cables - Conductor DC resistance test (neg IEC 885-2) GB/T 3048.8—1994 Electrical test methods for wires and cables - AC voltage test (negIEC 60:1989) GB/T3048.9—1994 Electrical test methods for wires and cables - Insulated core spark test (neq1EC885-2) GB/T3048.15—1992 Electrical test methods for wire and cable - Insulated core DC spark test (idtBS5099:1974) GB/T 3953—1983 Electrical round braided wire (neq ASTM B1:1970) GB/T 4909. 2—1985
Bare wire test method Dimension measurement (ne9IEC251:1978) GB/T4909.3—1985 Bare wire test method Tensile test (ne9IEC207:1966) QB/T3804—1999 Soft polyvinyl chloride plastic for wires and cables 3 Classification code, model and product attenuation display method 3.1 Classification
3.1.1 According to the characteristics of the conductor material, it is divided into copper core and chain zinc steel core conductor. 3.1.2 According to the insulation thickness, it is divided into thin and thick polyvinyl nitride insulation. 3.2 Code
3.2.1 Series code
Wire for detonating electric tube
3.2.2 Material code
Copper core conductor
Galvanized steel core conductor
Insulation Polyethylene oxide
3.2.3 Insulation thickness code
Thin insulation
Approved by the State Administration of Quality and Technical Supervision on November 11, 1999DB
Implementation on October 1, 2000
Thick insulation
3.3 Model
The models of detonating wire are shown in Table 1.
DBGV-1
DBGV-2
3.4 ​​Product identification method
GB 18014—1999
Copper core thin vinyl chloride insulation wire for electric detonator detonator Thick polyvinyl chloride insulation wire for electric detonator Zinc steel core annular polyoxyethylene insulation wire for electric detonator detonator 3.4.1 The product is represented by the model, nominal diameter of the conductor, insulation color and the number of this standard. 3.4.2 Example
0.40 mm diameter copper core thin polyvinyl chloride insulated wire for electric detonator detonation, red, represented by: DBV-10.40 red GB18014—1999
0.52 mm diameter galvanized steel core thick polyvinyl chloride insulated wire for electric detonator detonation, gray, represented by: DBGV-2 0.52 gray GB 18014—19994 Technical requirements
4.1 Specifications
The specifications, structural dimensions and conductor DC resistance of the detonating wire are as specified in Table 2. Table 2
DBGV 1
DBCV-2
Conductor nominal diameter
Recommended thickness
No small hand
Average outer diameter of wire, mm
Conductor DC
resistance at 20C is not more than
4.2 Conductor
GB 18014—1999
4.2.1 Copper core conductor shall comply with the provisions of GB/T3953 for TR type copper single wire, and its nominal diameter shall comply with the provisions of Table 2. 4.2.2 Galvanized steel core conductor shall comply with the provisions of Appendix A of this standard, and its nominal diameter shall comply with the provisions of Table 2. 4.3 Insulation
4.3.1 Insulation Vinyl chloride shall be made of J-70 or JR-70 plastic in accordance with the provisions of QB/T 3804. 4.3.2 The insulation should be tightly packed on the conductor and should be easy to strip without damaging the conductor. The insulation surface should be smooth and uniform in color. 4.3.3 The thickness of any point of the insulation should comply with the provisions of Table 2. 4.3.4 The colors of the insulation are gray, red, yellow, blue, green and white. 4.4 Finished detonating wire
4.4.1 The average outer diameter of the finished detonating wire should comply with the provisions of Table 2. 4.4.2 The DC resistance of the conductor of the finished detonating wire should comply with the provisions of Table 2. 4.4.3 The finished detonating wire should withstand the routine test of 500 V AC, 1 min of immersion voltage, and should not be broken down. The routine test of flooding voltage is allowed to be replaced by spark test. The test voltage of thin insulation is 1 kV or 1.5 kV DC, and the test voltage of thick insulation is 1.5 kV or 2 V DC.
The breakdown point found after inspection must be properly repaired or cut off. Finished detonating wires shall be subjected to a water immersion voltage type test of 1000 V.1 min AC and shall not break down. 4.4.4 Finished detonating wires of DBGV type shall be subjected to a softness test. The softness is expressed by the degree of the winding rebound angle, and its value shall not exceed 85°. 5 Test methods
5.1 Structural dimension inspection
5. 1.1 Conductor diameter inspection
The diameter of the copper core conductor shall be inspected in accordance with the method specified in GB/T4909.2. The diameter of the galvanized steel core conductor shall be inspected in accordance with the provisions of Appendix A of this standard. 5.1.2 Insulation thickness measurement
The thickness of the thinnest point of insulation shall be measured in accordance with the provisions of GB/T2951.1. A section of detonating wire sample shall be taken at three locations at least 1 m apart. The reading shall be measured to three decimal places (in mm), and the measured value shall be rounded to two decimal places. The thickness of the insulation at the thinnest point shall be the minimum value of all measured values. 5.1.3 Measurement of average outer diameter of detonating cord
The average outer diameter of detonating cord shall be measured in accordance with GB/T 2951.1, and measured in two mutually perpendicular directions at three locations at least every 1 m.
The reading shall be measured to three decimal places (in mm), and the arithmetic mean of the six measured values ​​shall be rounded to two decimal places as the average outer diameter of detonating cord.
5.2 Electrical performance test
5. 2. 1 Measurement of DC resistance of conductor
The DC resistance of copper core conductor and galvanized steel core conductor shall be measured in accordance with GB/T 3048.4 and PM4 of this standard. The effective length of the sample shall be not less than 1 m.
5.2.2 Insulation water immersion withstand voltage test
5.2.2. 1500 V AC voltage test
5.2.2.1.1500 V AC voltage test shall be carried out in accordance with the provisions of GB/T 3048.8. 1. Sample: all finished detonating wires in coils or reels: 1. Water composition: ordinary tap water;
Water temperature: room temperature
Immersion time: 1h.
GB 180141999
5.2.2.1.2 Insulation spark test shall be carried out in accordance with the provisions of GB/T 3048.9 or GH/T 3048.15. 5.2.2.2 1 000 V AC voltage test The 1 000 V AC voltage test shall be carried out in accordance with the provisions of GB/T3048.8. Sample: a finished detonating cord with a length of 5 m; water composition, an aqueous solution containing 3% (mass fraction) NsCl; immersion temperature: (20 ± 5) °C:
immersion time: 1 h. wwW.bzxz.Net
5.3 Softness test of DBGV finished detonating cord 5.3.1 Test device
The test device for the rebound angle is shown in Figure 1. The rebound angle test device allows the use of dynamic winding. 5.3.2 Sample preparation
Take 3 samples of about 800 mm in length from the finished detonating cord at intervals of at least 1 m. The removed samples should remain in their original state and should not be stretched or bent.
5.3.3 Test steps
5.3.3.1 Insert one end of the sample into the hole at the 0° mark on the circumference of the disk of the rebound angle test device, and hang a load of 120g on the other end
5.3.3.2 According to the winding direction of the sample when it was originally drawn, wind it three turns on the reel in a counterclockwise direction at a speed of about 6 turns/min. 5.3.3.3 Lock the crank handle with the pin bolt, press the sample tightly on the disk surface by hand, remove the load on the wire end, bend the sample into a right angle along the radial direction of the national standard at the "0°" point of the third turn, and use it as a pointer. The pointer is about 20mm long, and the excess wire is cut off. 5.3.3.4 Block the pointer with your finger, and let the coil rebound slowly at a speed of about 1/min. When the pointer no longer rebounds with the finger, the dial reading pointed by the pointer is the rebound angle. Sugar plate
5.3.4 Test results and evaluation
Stab plate
Fire-proof explosion bolt
Load 120g
The test results of the three samples are all no more than 85°, which is considered qualified: 6 Inspection rules
6.1 Inspection classification
GB1B014-1999
The inspections specified in this standard are divided into routine inspection (inspection type code R), sampling inspection (inspection type code S) and type inspection (inspection type code T).
6.1.1 Routine inspection
Inspection conducted by the manufacturer on all the manufactured lengths of finished wires to verify the integrity of the wires. 6.1.2 Sampling inspection
Inspection conducted by the manufacturer on finished wire samples or on samples taken from finished wires at a specified frequency to verify that the finished wires meet the specified requirements.
6.1.3 Type inspection
Before a type of wire in this standard is provided in batches, it is an inspection to verify that it has satisfactory performance characteristics when it meets the specified purpose. After completing the type inspection, it is generally not necessary to repeat it, but it is necessary to repeat the type inspection when there are changes in the raw materials, design and manufacturing process that affect the performance characteristics of the wire. 6.2 Inspection rules
The product shall be inspected and qualified by the quality inspection department of the manufacturer according to the routine inspection (R) and sampling inspection (S) items specified in Table 3 before it can be shipped out of the factory.
The shipped products shall be accompanied by a product inspection certificate. Table 3
6.3 Sampling inspection
Inspection items
Structure and size inspection
Thinnest point thickness
Outer diameter of finished product
Performance inspection of galvanized steel wire
Tensile strength
Breaking length
Uniformity of zinc coating
Firmness of zinc coating
Conductor DC resistance test
Water immersion voltage test
500 V AC voltage test (spark test may be used instead)
1000 V AC voltage test
Softness test of DBGV type finished detonating cord
Required article number
Inspection type
Test method
GB/T 2951.1
GB/T 2951. 1
GB/T 4909.3
GB/T 4909. 3
Appendix A to this standard
Appendix A to this standard
GR/T 3048.4
GB/T 3048.8
(GB/T 3048. 9 or
GE/T 3048. 13)
5.3 to this standard
The sampling quantity for each batch of sampling inspection shall be stipulated by the agreement between the supply and demand parties. If the user does not make any requirements, the manufacturer shall conduct sampling inspection on 5% of each batch of products, which shall not be less than 3 circles (reels) and not more than 10 circles (reels). When the test results of the sampling inspection items are unqualified, double sampling should be carried out for the second inspection. If it is still unqualified, the batch of products shall be judged as unqualified products. 6.4 Type inspection
Sampling should be taken from the batch of products that have passed the routine inspection and sampling inspection, and type inspection (T) should be carried out according to the provisions of Table 3. Type inspection should be carried out in any of the following situations: GB 18014-1999
a) Trial type identification of new products or old products transferred to factory production: b) After formal production, if there are major changes in materials and processes that may affect product performance: c) Every two years in normal production;
d) When the product is resumed after long-term suspension of production: e) When there is a major difference between the factory inspection results and the above-mentioned type inspection f) When the national quality supervision agency proposes a requirement for type inspection. 6.5 Appearance inspection
The appearance of the product shall be visually inspected piece by piece.
7 Packaging, marking and storage
7.1 The detonating cord shall be delivered in a circle or in a drum. The weight of each coil or reel is (8-12) kg. The wire segments with a weight of not less than 0.5 kg are allowed to be delivered, but the number of wire segments should not exceed 5. The insulation of the wires in each coil or reel should be of the same color, and the inner diameter of the wire should be 200 mm: 7.2 The coiled or reeled detonating wire should be neatly wound, with obvious and easy-to-find ends. The coiled wires are firmly tied with wires of different colors, and are evenly wrapped and wrapped with packaging tapes of suitable materials. The coiled wires are covered with packaging materials on the surface of the wires. 7.3 Each coil or reel of finished detonating wire should be attached with a label indicating: a) manufacturer name;
b) product name, model and specifications!
c) net weight, kg
d) manufacturing date, year and month:
c) signature of the quality inspector;
door standard push number.
7.4 When packing, the outer surface of the box should be marked with: a) manufacturer's name,
b) product name, model, specification and color; c) box size and mass, mmXmmXmm, kgd) moisture-proof and anti-throwing marks.
7.5 The packaging and marking of export products shall comply with relevant regulations. 7.6 Products should be stored in a well-ventilated warehouse. A1 Scope of application
GB 180141999
Appendix A
(Appendix to the standard)
Galvanized steel core conductor
This appendix applies to the galvanized steel core conductor of polyurethane insulated wire for DBGV type electric detonator detonation A2 Technical requirements
A2.1 The nominal diameter and deviation of the zinc steel core conductor shall comply with the provisions of Table A1. Table A1
Nominal diameter
A2.2 Technical performance
The technical performance of zinc-coated steel core conductors shall comply with the provisions of Table A2. Table A2
Item name
Tensile strength
Elongation at break
DC resistance at 20C
Uniformity of zinc layer
Solidity of zinc layer
Test method
First diameter measurement
≥295
This standard specifies the value in Table 2
Should not be attached with metal steel
No cracking or falling off
The diameter of the galvanized steel core conductor shall be measured with a measuring tool with a graduation of 0.01mm. A3.2 Tensile strength and elongation at break test
The resistance value at different ambient temperatures shall be as specified in A3. 3 Calculation of resistance temperature coefficient specified in the article
The tensile strength and elongation at break test of zinc steel core conductor shall be carried out according to the method specified in GB/T4909.3. The tensile speed is 50 mm/tnin, the effective length of the sample is 100 mm, the number of samples is 3, and the test result is the arithmetic mean of the data calculated from the 3 samples. A3.3 DC resistance test
The DC resistance of zinc steel core conductor shall be measured according to the test method specified in GB/T 3048. 4. The DC resistance measured at different ambient temperatures shall be converted to the DC resistance at 20℃.
The conductor resistance temperature coefficient α2 at 20℃ is (4.55×10 3)1/℃. A3.4 Galvanizing layer uniformity test
GB 18014—1999
Take 3 samples of about 250 mm in length from the coiled galvanized steel core at intervals of at least 1 m,Bend them into a U-shape with a radius of 50 mm, and place them in a chemically pure copper sulfate solution with a temperature of (18 ± 2) °C and a density of 1.114-1.116 g/cm2. The length of the inserted part should be no less than 150 mm for 45 seconds. After taking them out, wash them in clean water immediately, and then wipe them clean with absorbent cotton. Then check them vigorously. There should be no copper traces on the surface of the samples.
A3.5 Galvanized layer firmness test
Take 3 samples of about 200 mm in length from the galvanized pin core at least 1m apart, and wind them 6 turns on a round pin with a diameter of 4.2 mm at a speed of about 18 turns/min. Then check the surface of the samples with your eyes. There should be no coating breakage or shedding.
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