GB 50259-1996 Specification for the construction and acceptance of electrical lighting installations for electrical installation engineering GB50259-96

GB 50259-1996 Electrical installation engineering electrical lighting installation construction and acceptance specification GB50259-96 GB50259-1996 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
50259-96
Electrical Equipment Installation Engineering
Code for Construction and Acceptance of Electric Lighting Devices
Published on 1996-06-05
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Implemented on 1996-12-01
Jointly Issued
W.bzsoso.coDEngineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Electrical Equipment Installation Engineering
Code for Construction and Acceptance of Electric Lighting Devices
Code for Construction and Acceptance of Electric Lighting Devices Electric Equipment Installation engineeringGB50259—96
Editing department: Ministry of Electric Power Industry of the People's Republic of ChinaApproving department: Ministry of Construction of the People's Republic of ChinaEffective date: February 1, 1997
Engineering construction standard full-text information system
Engineering construction standard full-text information system
Notice on the release of national standards "Construction and acceptance specifications for wiring projects of 1kV and below for electrical installation engineering" and "Construction and acceptance specifications for electrical lighting installations for electrical installation engineering"Construction Standard [1996] No. 475
According to the requirements of the State Planning Commission's Jizong [1986] No. 2630 and the Ministry of Construction's (90) Jianbiao Ji Zi No. 4, the "Construction and Acceptance Specifications for Wiring Projects of 1kV and Below for Electrical Installation Engineering" and "Construction and Acceptance Specifications for Electrical Lighting Installations for Electrical Installation Engineering" jointly revised by the Ministry of Electric Power Industry and relevant departments have been reviewed by relevant departments. The "Construction and Acceptance Specifications for Wiring Engineering of 1kV and Below for Electrical Installation Engineering" GB50258-96 and "Construction and Acceptance Specifications for Electrical Lighting Installation for Electrical Installation Engineering" GB50259-96 are now approved as mandatory national standards, which will be implemented from February 1, 1997. The 13th chapter "Wiring Engineering" and the 14th chapter "Electrical Lighting Installation" of the original national standard "Construction and Acceptance Specifications for Electrical Installation Engineering" GBJ232-82 are abolished at the same time.
This specification is managed by the Ministry of Electric Power Industry, and the specific interpretation and other work is the responsibility of the Electric Power Construction Research Institute of the Ministry of Electric Power Industry, and the publication and distribution is organized by the Standard and Quota Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
August 16, 1996
Engineering Construction Standards Full Text Information System
W.bzsoso.cOm Engineering Construction Standards Full Text Information System
Sockets, switches, ceiling fans, wall fans
Lighting distribution boxes (boards)
Project handover and acceptance
Additional instructions
Specification of standardized terms
Engineering Construction Standards Full Text Information System
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Engineering Construction Standards Full Text Information System
1 General Principles
1.0.1 This specification is formulated to ensure the construction quality of electrical lighting devices, promote technological progress, and ensure safe operation.
1.0.2 This specification applies to the construction and acceptance of electrical lighting installation projects in buildings and structures.
1.0.3 The installation of electrical lighting devices shall be carried out in accordance with the approved design. When the design is modified, it shall be carried out with the consent of the original design unit. 1.0.4 The equipment and instruments used and their transportation and storage shall comply with the relevant provisions of the current national standards; when there are special requirements for equipment and instruments, they shall also comply with the provisions of the product technical documents.
1.0.5 After the equipment and instruments arrive at the construction site, they shall be inspected in accordance with the following requirements: 1.0.5.1 The technical documents shall be complete.
1.0.5.2 The model, specification and appearance quality shall comply with the design requirements and the provisions of this specification.
1.0.6 The safety and technical measures during construction shall comply with the provisions of this specification and the current national standards and product technical documents.
1.0.7 Before the construction of electrical lighting devices, the construction project shall meet the following requirements: 1.0.7.1 Formwork and scaffolding that hinder the installation of lamps shall be removed; 1.0.7.2 Plastering work on ceilings, walls, etc. shall be completed, and ground cleaning work shall be completed. 1.0.8 After the construction of electrical lighting devices is completed, the local damaged parts of buildings and structures caused during the construction shall be repaired.
1.0.9 When installing electrical lighting devices in masonry structures, embedded hooks, bolts, screws, expansion bolts, nylon plugs or plastic plugs shall be used for fixing, and wooden wedges are strictly prohibited. When there is no provision in the design, the bearing capacity of the above-mentioned fixings shall match the weight of the electrical lighting device. 1.0.10 In dangerous and special dangerous places, when the height of the lamp from the ground is less than 2.4m, lighting lamps with a rated voltage of 36V or less should be used, or protective measures should be taken.
1.0.11 For electrical lighting devices installed on an insulating platform, the insulated end of the wire should extend out of the surface of the insulating platform.
1.0.12 The wiring of the electrical lighting device should be firm and the electrical contact should be good. Non-live metal parts such as lamps, switches, and sockets that need to be grounded or zeroed should have special grounding screws with obvious signs.
In addition to complying with the provisions of this specification, the construction and acceptance of electrical lighting devices shall also comply with the provisions of the relevant national standards and specifications in force. Engineering Construction Standard Full Text Information System
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2.0.1 Lamps and their accessories should be complete and free of mechanical damage, deformation, paint peeling, lampshade cracks and other defects.
2.0.2 According to the installation location and purpose of the lamps, the minimum cross-section of the wire core leading to each lamp should comply with the provisions of Table 2.0.2.
Minimum cross section of conductor core
Installation place and purpose of lamps
Indoor of civil buildings
Lamp head wire
Wire of mobile power
Equipment
Indoor of industrial buildings
Minimum cross section of wire core (mm2)
Copper core soft wire
Lamps shall not be installed directly on combustible components. When the high-temperature part of the lamp surface is close to 2.0.3
combustible materials, insulation and heat dissipation measures shall be taken. 2.0.4 In the substation, lamps shall not be installed directly above high-voltage and low-voltage distribution equipment and busbars.
The height of outdoor lamps from the ground should not be less than 3m; when installed on the wall, the height from the ground should not be less than 2.5m. 2.0.6 The wiring of screw-type lamp holders shall meet the following requirements: 2.0.6.1 The phase line shall be connected to the terminal of the center contact, and the neutral line shall be connected to the threaded terminal.
The insulating shell of the lamp holder shall not be damaged or leak. Engineering Construction Standard Full Text Information System
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2.0.6.3 For lamp holders with switches, the switch handle shall not have exposed metal parts. 2.0.7 For ceiling lamps equipped with incandescent bulbs, the bulbs shall not be close to the lampshade; when the distance between the bulb and the insulating platform is less than 5mm, heat insulation measures shall be taken between the bulb and the insulating platform.
2.0.8 The installation of lamps shall meet the following requirements: 2.0.8.1 When steel pipes are used as the suspension rods of lamps, the inner diameter of the steel pipes shall not be less than 10mm; the wall thickness of the steel pipes shall not be less than 1.5mm.
2.0.8.2 The lamp cord of the hanging chain lamp should not be subjected to tension, and the lamp cord should be braided with the hanging chain.
The ends of the soft cord of the soft wire chandelier should be protected by buckles; the core wires at both ends should be tinned. 2.0.8.3
2.0.8.4 The center line deviation of lamps installed in a row in the same room or place should not exceed 5mm.
2.0.8.5 Fluorescent lamps and high-pressure mercury lamps and their accessories should be used in conjunction with each other, and the installation position should be convenient for inspection and maintenance. bZxz.net
2.0.8.6 The fixing of lamps should be firm and reliable. There should be no less than 2 screws or bolts for fixing each lamp; when the diameter of the insulating platform is 75mm or less, 1 screw or bolt can be used for fixing.
2.0.9 Emergency lighting and evacuation indicator lights used in public places should have obvious signs. Public places without dedicated personnel should be equipped with automatic energy-saving switches. 2.0.10 Each set of street lamps should be equipped with fuses on the phase line. The wires leading from the overhead line to the street lamps should be waterproofed at the entrance of the lamps. 2.0.The installation of lighting transformers of 1136V and below shall meet the following requirements: 2.0.11.1 The power supply side shall be short-circuit protected, and the rated current of the fuse shall not be greater than the rated current of the transformer.
2.0.11.2 The shell, core and any end or neutral point of the low-voltage side shall be grounded or zeroed.
2.0.12 The wires of the lamps fixed on the mobile structure should be laid on the inner side of the mobile frame. When the mobile frame is moving, the wires should not be subjected to tension and wear. 2.0.13 When the weight of the chandelier is greater than 3kg, it shall be fixed by embedded hooks or bolts. When the weight of the soft wire chandelier is greater than 1kg, a hanging chain shall be added. 2.0.14 The base and bracket of the floodlight shall be firmly fixed, and the pivot shall be tightened and fixed along the required optical axis direction.
2.0.15 The installation of metal halide lamps shall meet the following requirements: 2.0.15.1 The installation height of the lamp should be greater than 5m. The wire should be connected to the lamp through the terminal and should not be close to the surface of the lamp.
2.0.15.2 The lamp tube must be used in conjunction with a trigger and a current limiter. 2.0.15.3 Protective measures should be taken for reflective lighting fixtures installed on the ground. 2.0.16 The installation of decorative lamps embedded in the ceiling shall meet the following requirements: 2.0.16.1 The lamp should be fixed on a special frame, the wire should not be close to the lamp housing, there should be a margin in the lamp box, and the frame of the lamp should be close to the ceiling surface. 2.0.16.2 The frame of the rectangular lamp should be parallel to the decorative straight line of the ceiling surface, and the deviation should not be greater than 5mm.
2.0.16.3 For open-type lamps with fluorescent tubes, the tubes should be arranged neatly, and the metal or plastic spacers should not have defects such as distortion. 2.0.17 The diameter of the round steel of the hook for fixing the lantern should not be less than the diameter of the lamp hanging pin and hook, and should not be less than 6mm. The fixing and suspension devices of large lanterns and hanging lanterns should be subjected to a load test at 1.25 times the weight of the lamp. 2.0.18 For glass covers of large lamps installed in important places, measures should be taken to prevent them from splashing down after breaking according to design requirements.
2.0.19 The installation of neon lights should meet the following requirements: 2.0.19.1 The lamp tubes should be intact and free of cracks. 2.0.19.2 The lamp tubes should be fixed with special insulating brackets, and they must be firm and reliable. Special brackets can be made of glass tubes. The minimum distance between the fixed lamp tubes and the surface of buildings and structures should not be less than 20mm.
2.0.19.3 The length of the tube supplied by the neon lamp transformer should not exceed the allowable load length.
2.0.19.4 The installation location of the neon lamp transformer should be concealed and convenient for maintenance, but it should not be installed in the suspended ceiling and should not be touched by non-maintenance personnel. When it is open, its height should not be less than 3m. When it is less than 3m, protective measures should be taken; when it is installed outdoors, waterproof measures should be taken.
2.0.19.5 The secondary wire of the neon lamp transformer and the connecting wire between the lamp tube should use high-voltage nylon insulated wire with a rated voltage of not less than 15kV. 2.0.19.6 The distance between the secondary wire of the neon lamp transformer and the surface of the building or structure should not be less than 20mm.
2.0.20 The installation of the shadowless lamp for the operating table shall meet the following requirements: 2.0.20.1 The number of screws for fixing the lamp holder shall not be less than the number of fixing holes on the flange base of the lamp, and the bolt diameter shall match the hole diameter. 2.0.20.2 In concrete structures, embedded parts shall be welded to the main reinforcement. 2.0.20.3 The bolts for fixing the base of the shadowless lamp shall be locked with double nuts. 2.0.21 The laying of the wires for the shadowless lamp for the operating table shall meet the following requirements: 2.0.21.1 The bulbs shall be connected to two dedicated circuits at intervals. 2.0.21.2 The wires from the switch to the lamp shall use copper core multi-strand insulated wires with a rated voltage of not less than 500V.
Full text information system of construction standards for work types 6
Full text information system of engineering construction standards
3 Sockets, switches, ceiling fans, wall fans
3.1 Sockets
3.1.1 The installation height of the sockets shall comply with the design requirements. When there are no design requirements, the following requirements shall be met:
3.1.1.1 The height from the ground should not be less than 1.3m. The height from nurseries, kindergartens and primary schools should not be less than 1.8m; the height of sockets installed in the same place should be consistent. 3.1.1.2 The installation height of sockets in workshops and laboratories should not be less than 0.3m from the ground; the height of concealed sockets in special places should not be less than 0.15m. The height difference of sockets installed in the same room should not be greater than 5mm; the height difference of sockets of the same model installed in parallel should not be greater than 1mm. 3.1.1.3 Floor sockets should have a firm and reliable protective cover. 3.1.2 The wiring of the socket shall meet the following requirements: 3.1.2.1 For a single-phase two-hole socket, the right hole or the upper hole facing the socket shall be connected to the phase line, and the left hole or the lower hole shall be connected to the neutral line. For a single-phase three-hole socket, the right hole facing the socket shall be connected to the phase line, and the left hole shall be connected to the neutral line.
3.1.2.2 The grounding wire or the neutral line of the single-phase three-hole, three-phase four-hole and three-phase five-hole sockets shall be connected to the upper hole. The grounding terminal of the socket shall not be directly connected to the neutral line terminal. 3.1.2.3 When AC, DC or sockets of different voltage levels are installed in the same place, there shall be obvious distinctions, and sockets of different structures, specifications and non-interchangeable types must be selected. The matching plugs shall be used according to AC, DC or different voltage levels. 3.1.2.4 The wiring phases of three-phase sockets in the same place must be consistent. 3.1.3 Concealed sockets should use special boxes, and there should be no gaps around the special boxes. The cover should be straight and close to the wall.
3.1.4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standards Full Text Information System
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3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products. The on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation. The distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of switches of the same model installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use special boxes; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and shall not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with anti-vibration rubber pads, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling ceiling fans, the following requirements shall be met: 3.3.4.1 It is strictly forbidden to change the angle of the fan blades.
The fixing screws of the blades shall be equipped with anti-loosening devices. 3.3.4.3 The engagement length of the threaded connection between the hangers and between the hangers and the motor shall not be less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly, and the fan blades should not vibrate significantly during operation. 3.4 Wall fans
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download14 The base and bracket of the floodlight should be firmly fixed, and the pivot should be tightened and fixed along the required optical axis direction.
2.0.15 The installation of metal halide lamps should meet the following requirements: 2.0.15.1 The installation height of the lamp should be greater than 5m, and the wire should be connected to the lamp through the terminal and should not be close to the surface of the lamp.
2.0.15.2 The lamp tube must be used in conjunction with the trigger and current limiter. 2.0.15.3 Protective measures should be taken for reflective lighting fixtures installed on the ground. 2.0.16 The installation of decorative lamps embedded in the ceiling should meet the following requirements: 2.0.16.1 The lamp should be fixed on a special frame, the wire should not be close to the lamp housing, and there should be a margin in the lamp box. The frame of the lamp should be close to the ceiling surface. 2.0.16.2 The frame of the rectangular lamp should be parallel to the decorative straight line of the ceiling surface, and the deviation should not be greater than 5mm.
2.0.16.3 For open-type lamps with fluorescent tubes, the tubes should be arranged neatly, and the metal or plastic spacers should not have defects such as distortion. 2.0.17 The diameter of the round steel of the hook for fixing the lantern should not be less than the diameter of the lamp hanging pin and hook, and should not be less than 6mm. The fixing and suspension devices of large lanterns and hanging lanterns should be subjected to a load test at 1.25 times the weight of the lamp. 2.0.18 For glass covers of large lamps installed in important places, measures should be taken to prevent them from splashing down after breaking according to design requirements.
2.0.19 The installation of neon lights should meet the following requirements: 2.0.19.1 The lamp tubes should be intact and free of cracks. 2.0.19.2 The lamp tubes should be fixed with special insulating brackets, and they must be firm and reliable. Special brackets can be made of glass tubes. The minimum distance between the fixed lamp tubes and the surface of buildings and structures should not be less than 20mm.
2.0.19.3 The length of the tube supplied by the neon lamp transformer should not exceed the allowable load length.
2.0.19.4 The installation location of the neon lamp transformer should be concealed and convenient for maintenance, but it should not be installed in the suspended ceiling and should not be touched by non-maintenance personnel. When it is open, its height should not be less than 3m. When it is less than 3m, protective measures should be taken; when it is installed outdoors, waterproof measures should be taken.
2.0.19.5 The secondary wire of the neon lamp transformer and the connecting wire between the lamp tube should use high-voltage nylon insulated wire with a rated voltage of not less than 15kV. 2.0.19.6 The distance between the secondary wire of the neon lamp transformer and the surface of the building or structure should not be less than 20mm.
2.0.20 The installation of the shadowless lamp for the operating table shall meet the following requirements: 2.0.20.1 The number of screws for fixing the lamp holder shall not be less than the number of fixing holes on the flange base of the lamp, and the bolt diameter shall match the hole diameter. 2.0.20.2 In concrete structures, embedded parts shall be welded to the main reinforcement. 2.0.20.3 The bolts for fixing the base of the shadowless lamp shall be locked with double nuts. 2.0.21 The laying of the wires for the shadowless lamp for the operating table shall meet the following requirements: 2.0.21.1 The bulbs shall be connected to two dedicated circuits at intervals. 2.0.21.2 The wires from the switch to the lamp shall use copper core multi-strand insulated wires with a rated voltage of not less than 500V.
Full text information system of construction standards for work types 6
Full text information system of engineering construction standards
3 Sockets, switches, ceiling fans, wall fans
3.1 Sockets
3.1.1 The installation height of the sockets shall comply with the design requirements. When there are no design requirements, the following requirements shall be met:
3.1.1.1 The height from the ground should not be less than 1.3m. The height from nurseries, kindergartens and primary schools should not be less than 1.8m; the height of sockets installed in the same place should be consistent. 3.1.1.2 The installation height of sockets in workshops and laboratories should not be less than 0.3m from the ground; the height of concealed sockets in special places should not be less than 0.15m. The height difference of sockets installed in the same room should not be greater than 5mm; the height difference of sockets of the same model installed in parallel should not be greater than 1mm. 3.1.1.3 Floor sockets should have a firm and reliable protective cover. 3.1.2 The wiring of the socket shall meet the following requirements: 3.1.2.1 For a single-phase two-hole socket, the right hole or the upper hole facing the socket shall be connected to the phase line, and the left hole or the lower hole shall be connected to the neutral line. For a single-phase three-hole socket, the right hole facing the socket shall be connected to the phase line, and the left hole shall be connected to the neutral line.
3.1.2.2 The grounding wire or the neutral line of the single-phase three-hole, three-phase four-hole and three-phase five-hole sockets shall be connected to the upper hole. The grounding terminal of the socket shall not be directly connected to the neutral line terminal. 3.1.2.3 When AC, DC or sockets of different voltage levels are installed in the same place, there shall be obvious distinctions, and sockets of different structures, specifications and non-interchangeable types must be selected. The matching plugs shall be used according to AC, DC or different voltage levels. 3.1.2.4 The wiring phases of three-phase sockets in the same place must be consistent. 3.1.3 Concealed sockets should use special boxes, and there should be no gaps around the special boxes. The cover should be straight and close to the wall.
3.1.4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standards Full Text Information System
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3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products. The on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation. The distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of switches of the same model installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use special boxes; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and shall not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with anti-vibration rubber pads, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling ceiling fans, the following requirements shall be met: 3.3.4.1 It is strictly forbidden to change the angle of the fan blades.
The fixing screws of the blades shall be equipped with anti-loosening devices. 3.3.4.3 The engagement length of the threaded connection between the hangers and between the hangers and the motor shall not be less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly, and the fan blades should not vibrate significantly during operation. 3.4 Wall fans
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download14 The base and bracket of the floodlight should be firmly fixed, and the pivot should be tightened and fixed along the required optical axis direction.
2.0.15 The installation of metal halide lamps should meet the following requirements: 2.0.15.1 The installation height of the lamp should be greater than 5m, and the wire should be connected to the lamp through the terminal and should not be close to the surface of the lamp.
2.0.15.2 The lamp tube must be used in conjunction with the trigger and current limiter. 2.0.15.3 Protective measures should be taken for reflective lighting fixtures installed on the ground. 2.0.16 The installation of decorative lamps embedded in the ceiling should meet the following requirements: 2.0.16.1 The lamp should be fixed on a special frame, the wire should not be close to the lamp housing, and there should be a margin in the lamp box. The frame of the lamp should be close to the ceiling surface. 2.0.16.2 The frame of the rectangular lamp should be parallel to the decorative straight line of the ceiling surface, and the deviation should not be greater than 5mm.
2.0.16.3 For open-type lamps with fluorescent tubes, the tubes should be arranged neatly, and the metal or plastic spacers should not have defects such as distortion. 2.0.17 The diameter of the round steel of the hook for fixing the lantern should not be less than the diameter of the lamp hanging pin and hook, and should not be less than 6mm. The fixing and suspension devices of large lanterns and hanging lanterns should be subjected to a load test at 1.25 times the weight of the lamp. 2.0.18 For glass covers of large lamps installed in important places, measures should be taken to prevent them from splashing down after breaking according to design requirements.
2.0.19 The installation of neon lights should meet the following requirements: 2.0.19.1 The lamp tubes should be intact and free of cracks. 2.0.19.2 The lamp tubes should be fixed with special insulating brackets, and they must be firm and reliable. Special brackets can be made of glass tubes. The minimum distance between the fixed lamp tubes and the surface of buildings and structures should not be less than 20mm.
2.0.19.3 The length of the tube supplied by the neon lamp transformer should not exceed the allowable load length.
2.0.19.4 The installation location of the neon lamp transformer should be concealed and convenient for maintenance, but it should not be installed in the suspended ceiling and should not be touched by non-maintenance personnel. When it is open, its height should not be less than 3m. When it is less than 3m, protective measures should be taken; when it is installed outdoors, waterproof measures should be taken.
2.0.19.5 The secondary wire of the neon lamp transformer and the connecting wire between the lamp tube should use high-voltage nylon insulated wire with a rated voltage of not less than 15kV. 2.0.19.6 The distance between the secondary wire of the neon lamp transformer and the surface of the building or structure should not be less than 20mm.
2.0.20 The installation of the shadowless lamp for the operating table shall meet the following requirements: 2.0.20.1 The number of screws for fixing the lamp holder shall not be less than the number of fixing holes on the flange base of the lamp, and the bolt diameter shall match the hole diameter. 2.0.20.2 In concrete structures, embedded parts shall be welded to the main reinforcement. 2.0.20.3 The bolts for fixing the base of the shadowless lamp shall be locked with double nuts. 2.0.21 The laying of the wires for the shadowless lamp for the operating table shall meet the following requirements: 2.0.21.1 The bulbs shall be connected to two dedicated circuits at intervals. 2.0.21.2 The wires from the switch to the lamp shall use copper core multi-strand insulated wires with a rated voltage of not less than 500V.
Full text information system of construction standards for work types 6
Full text information system of engineering construction standards
3 Sockets, switches, ceiling fans, wall fans
3.1 Sockets
3.1.1 The installation height of the sockets shall comply with the design requirements. When there are no design requirements, the following requirements shall be met:
3.1.1.1 The height from the ground should not be less than 1.3m. The height from nurseries, kindergartens and primary schools should not be less than 1.8m; the height of sockets installed in the same place should be consistent. 3.1.1.2 The installation height of sockets in workshops and laboratories should not be less than 0.3m from the ground; the height of concealed sockets in special places should not be less than 0.15m. The height difference of sockets installed in the same room should not be greater than 5mm; the height difference of sockets of the same model installed in parallel should not be greater than 1mm. 3.1.1.3 Floor sockets should have a firm and reliable protective cover. 3.1.2 The wiring of the socket shall meet the following requirements: 3.1.2.1 For a single-phase two-hole socket, the right hole or the upper hole facing the socket shall be connected to the phase line, and the left hole or the lower hole shall be connected to the neutral line. For a single-phase three-hole socket, the right hole facing the socket shall be connected to the phase line, and the left hole shall be connected to the neutral line.
3.1.2.2 The grounding wire or the neutral line of the single-phase three-hole, three-phase four-hole and three-phase five-hole sockets shall be connected to the upper hole. The grounding terminal of the socket shall not be directly connected to the neutral line terminal. 3.1.2.3 When AC, DC or sockets of different voltage levels are installed in the same place, there shall be obvious distinctions, and sockets of different structures, specifications and non-interchangeable types must be selected. The matching plugs shall be used according to AC, DC or different voltage levels. 3.1.2.4 The wiring phases of three-phase sockets in the same place must be consistent. 3.1.3 Concealed sockets should use special boxes, and there should be no gaps around the special boxes. The cover should be straight and close to the wall.
3.1.4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standards Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download Engineering Construction Standards Full Text Information System
3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products. The on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation. The distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of switches of the same model installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use special boxes; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and shall not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with anti-vibration rubber pads, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling ceiling fans, the following requirements shall be met: 3.3.4.1 It is strictly forbidden to change the angle of the fan blades.
The fixing screws of the blades shall be equipped with anti-loosening devices. 3.3.4.3 The engagement length of the threaded connection between the hangers and between the hangers and the motor shall not be less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly, and the fan blades should not vibrate significantly during operation. 3.4 Wall fans
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download0.19.3 The length of the lamp supplied by the neon lamp transformer should not exceed the allowable load length.
2.0.19.4 The installation location of the neon lamp transformer should be concealed and convenient for maintenance, but it should not be installed in the suspended ceiling and should not be touched by non-maintenance personnel. When it is open, its height should not be less than 3m. When it is less than 3m, protective measures should be taken; when it is installed outdoors, waterproof measures should be taken.
2.0.19.5 The secondary wire of the neon lamp transformer and the connecting wire between the lamp tube should use high-voltage nylon insulated wire with a rated voltage of not less than 15kV. 2.0.19.6 The distance between the secondary wire of the neon lamp transformer and the surface of the building or structure should not be less than 20mm.
2.0.20 The installation of the shadowless lamp for the operating table shall meet the following requirements: 2.0.20.1 The number of screws for fixing the lamp holder shall not be less than the number of fixing holes on the flange base of the lamp, and the bolt diameter shall match the hole diameter. 2.0.20.2 In concrete structures, embedded parts shall be welded to the main reinforcement. 2.0.20.3 The bolts for fixing the base of the shadowless lamp shall be locked with double nuts. 2.0.21 The laying of the wires for the shadowless lamp for the operating table shall meet the following requirements: 2.0.21.1 The bulbs shall be connected to two dedicated circuits at intervals. 2.0.21.2 The wires from the switch to the lamp shall use copper core multi-strand insulated wires with a rated voltage of not less than 500V.
Full text information system of construction standards for work types 6
Full text information system of engineering construction standards
3 Sockets, switches, ceiling fans, wall fans
3.1 Sockets
3.1.1 The installation height of the sockets shall comply with the design requirements. When there are no design requirements, the following requirements shall be met:
3.1.1.1 The height from the ground should not be less than 1.3m. The height from nurseries, kindergartens and primary schools should not be less than 1.8m; the height of sockets installed in the same place should be consistent. 3.1.1.2 The installation height of sockets in workshops and laboratories should not be less than 0.3m from the ground; the height of concealed sockets in special places should not be less than 0.15m. The height difference of sockets installed in the same room should not be greater than 5mm; the height difference of sockets of the same model installed in parallel should not be greater than 1mm. 3.1.1.3 Floor sockets should have a firm and reliable protective cover. 3.1.2 The wiring of the socket shall meet the following requirements: 3.1.2.1 For a single-phase two-hole socket, the right hole or the upper hole facing the socket shall be connected to the phase line, and the left hole or the lower hole shall be connected to the neutral line. For a single-phase three-hole socket, the right hole facing the socket shall be connected to the phase line, and the left hole shall be connected to the neutral line.
3.1.2.2 The grounding wire or the neutral line of the single-phase three-hole, three-phase four-hole and three-phase five-hole sockets shall be connected to the upper hole. The grounding terminal of the socket shall not be directly connected to the neutral line terminal. 3.1.2.3 When AC, DC or sockets of different voltage levels are installed in the same place, there shall be obvious distinctions, and sockets of different structures, specifications and non-interchangeable types must be selected. The matching plugs shall be used according to AC, DC or different voltage levels. 3.1.2.4 The wiring phases of three-phase sockets in the same place must be consistent. 3.1.3 Concealed sockets should use special boxes, and there should be no gaps around the special boxes. The cover should be straight and close to the wall.
3.1.4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standards Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download Engineering Construction Standards Full Text Information System
3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products. The on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation. The distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of switches of the same model installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use special boxes; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and shall not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with anti-vibration rubber pads, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling ceiling fans, the following requirements shall be met: 3.3.4.1 It is strictly forbidden to change the angle of the fan blades.
The fixing screws of the blades shall be equipped with anti-loosening devices. 3.3.4.3 The engagement length of the threaded connection between the hangers and between the hangers and the motor shall not be less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly, and the fan blades should not vibrate significantly during operation. 3.4 Wall fans
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download0.19.3 The length of the lamp supplied by the neon lamp transformer should not exceed the allowable load length.
2.0.19.4 The installation location of the neon lamp transformer should be concealed and convenient for maintenance, but it should not be installed in the suspended ceiling and should not be touched by non-maintenance personnel. When it is open, its height should not be less than 3m. When it is less than 3m, protective measures should be taken; when it is installed outdoors, waterproof measures should be taken.
2.0.19.5 The secondary wire of the neon lamp transformer and the connecting wire between the lamp tube should use high-voltage nylon insulated wire with a rated voltage of not less than 15kV. 2.0.19.6 The distance between the secondary wire of the neon lamp transformer and the surface of the building or structure should not be less than 20mm.
2.0.20 The installation of the shadowless lamp for the operating table shall meet the following requirements: 2.0.20.1 The number of screws for fixing the lamp holder shall not be less than the number of fixing holes on the flange base of the lamp, and the bolt diameter shall match the hole diameter. 2.0.20.2 In concrete structures, embedded parts shall be welded to the main reinforcement. 2.0.20.3 The bolts for fixing the base of the shadowless lamp shall be locked with double nuts. 2.0.21 The laying of the wires for the shadowless lamp for the operating table shall meet the following requirements: 2.0.21.1 The bulbs shall be connected to two dedicated circuits at intervals. 2.0.21.2 The wires from the switch to the lamp shall use copper core multi-strand insulated wires with a rated voltage of not less than 500V.
Full text information system of construction standards for work types 6
Full text information system of engineering construction standards
3 Sockets, switches, ceiling fans, wall fans
3.1 Sockets
3.1.1 The installation height of the sockets shall comply with the design requirements. When there are no design requirements, the following requirements shall be met:
3.1.1.1 The height from the ground should not be less than 1.3m. The height from nurseries, kindergartens and primary schools should not be less than 1.8m; the height of sockets installed in the same place should be consistent. 3.1.1.2 The installation height of sockets in workshops and laboratories should not be less than 0.3m from the ground; the height of concealed sockets in special places should not be less than 0.15m. The height difference of sockets installed in the same room should not be greater than 5mm; the height difference of sockets of the same model installed in parallel should not be greater than 1mm. 3.1.1.3 Floor sockets should have a firm and reliable protective cover. 3.1.2 The wiring of the socket shall meet the following requirements: 3.1.2.1 For a single-phase two-hole socket, the right hole or the upper hole facing the socket shall be connected to the phase line, and the left hole or the lower hole shall be connected to the neutral line. For a single-phase three-hole socket, the right hole facing the socket shall be connected to the phase line, and the left hole shall be connected to the neutral line.
3.1.2.2 The grounding wire or the neutral line of the single-phase three-hole, three-phase four-hole and three-phase five-hole sockets shall be connected to the upper hole. The grounding terminal of the socket shall not be directly connected to the neutral line terminal. 3.1.2.3 When AC, DC or sockets of different voltage levels are installed in the same place, there shall be obvious distinctions, and sockets of different structures, specifications and non-interchangeable types must be selected. The matching plugs shall be used according to AC, DC or different voltage levels. 3.1.2.4 The wiring phases of three-phase sockets in the same place must be consistent. 3.1.3 Concealed sockets should use special boxes, and there should be no gaps around the special boxes. The cover should be straight and close to the wall.
3.1.4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standards Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download Engineering Construction Standards Full Text Information System
3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products. The on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation. The distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of switches of the same model installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use special boxes; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and shall not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with anti-vibration rubber pads, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling ceiling fans, the following requirements shall be met: 3.3.4.1 It is strictly forbidden to change the angle of the fan blades.
The fixing screws of the blades shall be equipped with anti-loosening devices. 3.3.4.3 The engagement length of the threaded connection between the hangers and between the hangers and the motor shall not be less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly, and the fan blades should not vibrate significantly during operation. 3.4 Wall fans
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download Engineering Construction Standard Full Text Information System
3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products, the on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation, the distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of the same model switches installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use a special box; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and should not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with an anti-vibration rubber pad, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling the ceiling fan, the following requirements should be met: 3.3.4.1 It is strictly forbidden to change the angle of the blade.
The fixing screws of the blade should be equipped with anti-loosening devices. 3.3.4.3 The threaded connection between the suspension rods and between the suspension rods and the motor shall have an engagement length of not less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly and the fan blades should not vibrate significantly during operation. 3.4 Wall fan
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download4 In humid places, well-sealed waterproof and splash-proof sockets should be used. Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download Engineering Construction Standard Full Text Information System
3.2 Switches
3.2.1 Switches installed in the same building or structure should use the same series of products, the on and off positions of the switches should be consistent, and the operation should be flexible and the contact should be reliable. 3.2.2 The installation position of the switch should be convenient for operation, the distance between the edge of the switch and the door frame should be 0.15~0.2m; the height of the switch from the ground should be 1.3m; the height of the pull-wire switch from the ground should be 2~3m, and the pull-wire outlet should be vertically downward. 3.2.3 The height of the same model switches installed in parallel from the ground should be consistent, and the height difference should not be greater than 1mm; the height difference of switches installed in the same room should not be greater than 5mm; the adjacent spacing of pull-wire switches installed in parallel should not be less than 20mm. 3.2.4 The phase line should be controlled by the switch; it is strictly forbidden to install bedside switches in civil residences. 3.2.5 Concealed switches should use a special box; there should be no gaps around the special box, and the cover should be straight and close to the wall.
3.3 Ceiling fans
3.3.1 The ceiling fan hook should be installed firmly, and the diameter of the ceiling fan hook should not be less than the diameter of the ceiling fan hanging pin, and should not be less than 8mm.
3.3.2 The ceiling fan hanging pin should be equipped with an anti-vibration rubber pad, and the anti-loosening device of the pin should be complete and reliable.
The height of the ceiling fan blade from the ground should not be less than 2.5m. 3.3.3
3.3.4 When assembling the ceiling fan, the following requirements should be met: 3.3.4.1 It is strictly forbidden to change the angle of the blade.
The fixing screws of the blade should be equipped with anti-loosening devices. 3.3.4.3 The threaded connection between the suspension rods and between the suspension rods and the motor shall have an engagement length of not less than 20mm at each end, and an anti-loosening device shall be installed. 3.3.5 The ceiling fan should be wired correctly and the fan blades should not vibrate significantly during operation. 3.4 Wall fan
3.4.1 The base of the wall fan can be fixed with nylon plugs or expansion bolts; nylon plugs or expansion bolts Engineering Construction Standard Full Text Information System
W.bzsoso.cOm Various American Standard Industry Data Free Download
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