JB/T 10216-2000 Cable tray for electric control and power distribution
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T10216
2000-11-29
Wa Xian Ji Dong
2000-12-01
JB/T102162000
Cited Standards
Definition, Model Code
Test Method
Inspection Rules
Standardization, Design, Transportation and Storage
Appendix A (Suggestive Appendix)
Appendix B (Suggestive Appendix)
Appendix C (Suggestive Appendix)
Typical Illustrations of Pallets and Ladders
Typical Illustrations of Support and Hanger Brackets Example
Surface protection treatment method for steel cable tray
JB/T102162000
This standard is mainly based on IEC6153723A/300/CD "Cable tray and cable tray for electrical installation", and refers to CECS31:91 "Engineering design specification for steel cable tray", JB/T6743-1993 "Technical requirements for anti-corrosion environment of indoor and outdoor steel cable tray" and other domestic standards. Combined with the current situation of cable tray production in my country, it supplements the technical conditions of aluminum and glass fiber reinforced plastic cable trays and the technical content of fire-resistant cable trays, improves the test methods of cable trays, and gives corresponding typical examples. The writing format and rules of this standard conform to the requirements of GB/T1.1-1993 "Guide to Standardization Work Unit 1: Drafting and Expression Rules of Standards Part 1: Basic Provisions for Standardization Writing". Appendix A, Appendix B, and Appendix C of this standard are all suggested appendices. This standard is proposed and managed by the National Technical Committee for Standardization of Electrical Accessories. The main drafting units of this standard are: Tianjin Electric Drive Design Institute, Beijing Jing'an Xingda Electromechanical Equipment Company, Guangzhou Electrical Science Research Institute.
The main drafters of this standard are: Cui Jing, Li Qingchuan, Hou Fuquan, Luo Huaiping, Chen Zhanping, Yang Zhanyuan, Li Huiting. The participating drafting units of this standard are: Jixi Zhilong Electric Co., Ltd., Jiangsu Haiwei Group Co., Ltd., Zhenjiang Electrical Equipment Factory, Jiangsu Huaneng Electric Factory, Zhenjiang Yong Electric Control Complete Equipment Factory, Luoyang Neifa Electromechanical Co., Ltd., Ailiantang Electric (Shanghai) Co., Ltd., Zhenjiang Huayu Electric Instrument Co., Ltd., Yangzhou Hualian Electrical Equipment Industry Corporation, Tianjin Jiuan Group Co., Ltd., Beijing Third Switch Factory, Jiaxing Huatong Commercial Pressure Switch Factory, Shanghai Jingcheng Electric Complete Equipment Factory, Jiangsu Huaxia Electric Factory, Beijing Second Switch Factory, Shenyang Dongdian Domino Electric Co., Ltd., Nanning Electric Power Equipment Factory, Laiwang Huafa Electric Co., Ltd., Zhengzhou East Asia Electric Control Bridge Factory. The drafters of this standard are Qiu Jun, Zhang Yuejin, Zhao Xiang, Zheng Xiaolin, Li Jiulin, Chen Tiemin, Zhou Guorong, Sun Shunlian, Chen Xiaobing, Wang Shouquan, Ji Fuyi, Huang Jingsuo, Zhang Yuegen, Lan Yunlin, Jiang Zhanshan, Tao Yuanguo, Ran Pan, Ji Faqing, Wang Guoqiang. H
Ji Jia Kui Lu Wa Yi Dao
JB/T102162000
This standard specifies the definition, model code, requirements, test methods, inspection rules, marking, transportation and storage of cable trays for electric control and power distribution.
This standard is applicable to cable trays for high and low voltage power transmission and distribution projects indoors and outdoors in industrial and civil buildings. 2
Cited Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of the standard, the versions shown are all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T12-1988 Round head square neck bolts
GB/T93-1987 Spring washers
GB/T97.1-1985 Washers
GB/T 700-1988
Carbon structural steel
9 Solid insulating material electrical strength test method Test under power frequency (cqvIEC60243-1:1988) GB/T 1408.1-1999
GB/T 1410-1989
GB/T 1720-1993
GB/T 1764-1989
Test method for volume resistivity and surface resistivity of solid insulating materials (eqvEC93:1980)Determination of paint film adhesion
Determination of paint film thickness
GB/T 2423.4-1993
Basic environmental testing procedures for electric and electronic productsTest Db: Cyclic thermal test method
(eqvIEC68-2-30:1980)
GB/T2423.17-1993Basic environmental testing procedures for electric and electronic productsTest Ka: Salt spray test method
(egvIEC68-2-11:1981)
GB/T 2423.46-1997
Environmental testing for electric and electronic productsPart 2: Test methodsTest Ef: Impact: Pendulum (idt IEC68-2-62:1991)
Test method for water resistance of glass fiber reinforced plastics GB/T 2575-1989
Test method for chemical resistance of glass fiber reinforced thermosetting plastics GB/T 3857-1987
GB/T 3880-1997
GB/T 4208-1993
GB/T 49$6-1985
GB/T $270-1985
Aluminum and aluminum alloy rolled plates
Enclosure protection grade (IP code) (eqvIEC529:1989)Magnetic method for measuring the thickness of non-magnetic coatings on magnetic metal bodies (eqvISO2178:1982)Method for testing the adhesion strength of metal coatings (electrodeposited layers and chemically deposited layers) on metal bodies (egvIS02819:1980)
GB/T 5780-1986
5 Hexagon head bolts, grade C
GB/T6170-1986 Hexagon nuts, grade A and grade B GB/T 6892-1986
5 Industrial aluminum and aluminum alloy hot extrusion profiles
GB/T7251.1-1997 Low-voltage switchgear and control equipment Part 1: Type test and partial type test equipment (idtIEC439-1:1992)
General specification for anodized aluminum and aluminum alloy anodized film "idtIS07599:1983) GB/T8013-1987
GB/T 8624-1997
Classification method for combustion performance of building materials
Wa Wujiman 2000-11-29
2000-12-01 Small cable
JB/T102162000
GR/T9978-1988 Fire resistance test method for building components (eqvIS0834:1975) GB/T10580-1989 Standard push conditions for solid insulating materials before and during the test ( eqVIS0212:1971) GB/T11253-1989 Carbon steel and low alloy structural steel cold rolled thin steel plate and steel strip GB/T13384-1992 General technical conditions for packaging of electromechanical products GB/T15568-1995 General purpose sheet molding compound (SIC) JB/T6743-1993 Technical requirements for anti-corrosion environment of indoor and outdoor steel cable trays 3 Definitions and model codes
3.1 Definitions
This standard adopts the following definitions.
3.1.1 Cable tray cable supports system The full name of a rigid structural system with close support for cables composed of straight sections, bends, components, brackets (type brackets), hangers, etc. of trays or ladders (hereinafter referred to as cable trays). 3.1.2 Tray with holes cable tray system with hole in base area A trough-shaped component composed of a bottom plate with heat dissipation holes and sides. 3.1.3 Cable tray system without hole in base area A slot-shaped component consisting of a base plate and side edges. 3.1.4 Cable ladder system A ladder-shaped component consisting of side edges and a number of crossbars. 3.1.5 Cable tray system of assembly A component with holes that can be connected to form a tray by bolts or plug-ins at any site. 3.1.6 Horizontal bend A component that changes the direction of a tray or ladder on the same horizontal plane. 3.1.7 Horizontal tee mounted in the horizontal plane running is a component that connects pallets and ladders in two different directions on the same horizontal plane. 3.1.8 Horizontal cross mounted in the horizontal plane running is a component that connects pallets and ladders in four different directions on the same horizontal plane. 3.1.g Vertical bend mounted in the vertical plane running up is a component that allows pallets and ladders to change direction from the horizontal plane and extend upward. 3.1.10 Vertical tee mounted in the yertical plane running up is a component that separates three directions at different angles on the same vertical plane and connects pallets and ladders downward. 3.1.11 Vertical bend mounted in the vertical plane running down is a component that allows pallets and ladders to change direction from the horizontal plane and extend downward. 3.1.12 Vertical tee mounted in the vertical plane running down is a component that separates three directions at different angles on the same vertical plane and connects pallets and ladders downward. 3.1.13 Crose mounted in the vertical plane running A component that connects trays and ladder racks in four directions at different angles on the same vertical plane. 3.1.14 Cable tray system resistant to fire A continuous structural system consisting of straight sections, bends, accessories, supports and hangers of the cable tray, which can meet the specified requirements when the system is maintained in operation (in some cases, it can be referred to as a fire-resistant trough box). 2
JB/T102162000
3.1.15 Supports and pendants Load-bearing components that directly support trays and ladder racks. 3.1.16 Accessory systemaccessory
System components used to complete auxiliary functions, such as cable isolation, cable retention, cover plates, etc. 3.1.17 Rated uniformly distributed load The maximum uniformly distributed load that can be applied to the product during normal use. 3.1.18 Span
The distance between the midpoints of two adjacent supports (above 3m is a long span). 3.2 Model code
3.2.1 Bridge model and code
Main structure material code (see Table 1)
Structural feature code (see Table 2)
Cable bridge
Design serial number (in digits)
Variety code (see Table 3)
Surface protection type code (see Table 4)
Side height of tray and ladder rack (mm)
Width of tray and ladder rack (mm)
Note: The series code of steel bridge rack is GQ: The series code of fire-resistant bridge rack is GQ (N); the series code of glass fiber reinforced plastic bridge rack is BQ; the series code of aluminum bridge rack is LO.
Main structure material and code of bridge
Pallet without holes
Pallet with holes
Assembled pallet
Straight section
Horizontal bend
Horizontal tee
Horizontal four-way
Vertical upper bend
Vertical upper tee
Table 2 Structural feature code
Glass fiber reinforced plastic
Double-sided pallet without holes
Double-sided pallet with holes
Double-sided ladder
Table 3 Main variety codes
Vertical four-way
Vertical lower bend
Evil lower tee
Variation straight
Protection category|| tt||Ordinary type
Wet and hot type
JB/T102162000
Table 4 Protection types of cable trays and corresponding environmental conditions for use Protection type code
Medium corrosion protection type
Strong corrosion protection type
Outdoor type
Fire-resistant type
Note: 1) "N1-N3" is the fire grade code (see Table 5) F1
N-N31)
Table 5 Fire resistance grade and code of fire-resistant cable tray Fire resistance grade code
Maintenance working timenin
3.2.2 Example of cable tray model
Example:
Model: G PQ1A-200×50TH
Environmental condition level
3K5L/3K6/3K6L
3K5L/3C2
3K5L/3C3
3K5L/3C4
4K2/4C2
In fire protection line
Meaning: 200mm×50mm steel perforated tray straight section cable tray, design serial number 1, protection type is wet heat type 3.2.3 Accessories and their codes
-Cover plate (G)
Straight line connecting plate (BLJ)
Hinged connecting plate (BIS)
One end connecting plate (BDL)
Width adjustment plate (BTK)
Height adjustment plate (BTG)
Width and height adjustment plate (TKG)
Angle adjustment plate (BTJ)
Partition (BG)
Downlead (YX)
Cable clamp (DK)
Terminal head (ZF)
Expansion joint (SSJ)
Locking snap (SK)
Semicircle head square neck bolt (FJS)
Other fasteners (QT)
3.2.4 Basic supports and hangers and their codes
Corner: can be divided into wall bracket (TBQ), column bracket (TBL), shaft bracket (TES), etc. Column: can be divided into T-shaped steel column (LZG), channel steel column (L2ZC), angle steel column (LZJ), special-shaped steel column (LZYX), etc. Hanger: can be divided into angle steel cross arm (HDJ) double rod type, channel steel cross arm (HDC) double rod type and square hanging frame (DK) single rod type. The profile of the hanger can be round steel hanger (DGY), angle steel cross arm (DGJ), channel steel hanger (DGC) and special-shaped steel hanger (DGYX). Other fixed brackets: such as vertical or inclined support fixed brackets, etc. 4
4 Requirements
4.1 Normal use conditions
JB/T102162000
4.1.1 The altitude of the installation site shall not exceed 2000m. Parameters for different climate environment levels are shown in Table 6.4. 1.2
Table 6 Parameters of different climatic environment levels
Environmental parameters
Low temperature ℃
High temperature C
Low relative humidity %
High relative humidity %
Condensation intensity
Precipitation conditions
mm/min
Icing conditions
Special use conditions
4.2.1 Laying in different chemical corrosion environments See Table 7.3K6
Table 7 Environmental parameters for different chemical corrosion
Environmental parameters
Hydrogen sulfide
Hydrogen chloride
Ammonium fluoride
Nitrogen oxide"
3C2, 4C2
Abstract average value\
Maximum value 2
Average value 2)
Maximum value 2 )
Salt spray conditions 5
Average value 2
1) When one or more chemical gas concentration values in the environmental parameters meet the values in this table, it belongs to this level. 3C4
mg/tm3
Maximum value?
2) The average value is the average of the long-term values. The maximum value is the limit value or peak value during a period of no more than 30min per day. If it exceeds 30mmin, the level should be increased.
3) There are only qualitative regulations for the adverse conditions, and there is no need to divide the level 4) Equivalent to the value of hydrogen dioxide.
2 Laid in the fire protection line.
4.2.3 The value is set at an altitude of more than 2000m.
Note: Determined by the user and the manufacturer: 4.3 Structural requirements for cable trays
4.3.1 Protection level
JB/T102162000
a) The overall protection level of non-perforated trays (except for non-perforated trays without covers) shall comply with the provisions of GB4208-1993, not less than IP30 indoors and not less than IP33 outdoors.
b) The protection level of fire-resistant cable trays shall comply with the provisions of GB4208-1993, IP40 indoors and IP44 outdoors.4.3.2 Materials
The materials selected for the cable trays shall comply with the relevant standards of the company. a) Steel trays, ladder racks and accessories should be made of cold-rolled steel plates and should comply with the relevant provisions of Q235A steel in GB/T700-1988 and GB/T11253.
b) The plates and profiles of aluminum trays, ladder racks and accessories shall comply with the provisions of GB/T3880 and GB/T6892. c) The materials of glass fiber reinforced plastic pallets, ladders and accessories shall comply with the provisions of GB/T15568. Other non-metal pallets and ladders shall comply with the relevant provisions of the materials themselves.
d) Bolts, nuts, flat washers, spring washers and semicircular head square neck bolts shall comply with the provisions of GB/T5780, GB/T6170, GB/T97.1, GB/T93 and GB/T12 respectively.
e) Non-metallic materials in direct contact with live cables in fire-resistant cable trays shall comply with the provisions of Class B1 in GB8624-1997. f) The materials selected for supports and hangers shall comply with the relevant provisions of the materials themselves. 4.3.3 Common specifications for pallets and ladders
The common specifications for the width and height of pallets and ladders are shown in the symbol "△" in Table 8. See Appendix A for typical examples. Table 8 Common Specifications and Dimensions
Width B
4.3.4 Plate Thickness
The minimum allowable plate thickness for steel pallets and ladder racks is shown in Table 9. Drop H
Table 9 Minimum allowable plate thickness for steel pallets and ladder racks Pallet and ladder rack width B
100B150
150≤B<400
400B800
Allowed Minimum Plate Thickness
1) The thickness of the connecting plate shall be at least the same as the plate thickness between pallets and ladder racks, and may also be selected one grade thicker. 2) The plate thickness of the cover plate may be selected one grade lower than the thickness of the pallet and ladder rack. 4.3.5 Length
JB/T102162000
The standard lengths of the linear units of pallets and ladder racks are 2m, 3m, 4m, 6m, and 8m. 4.3.6 Bending radius of right-angle bend
The inner bending radius R of pallet and ladder right-angle bend is usually 200mm, 300mm, 400mm, 600mm, 900mm. 4.3.7 Ventilation hole
The area of ventilation hole at the bottom of perforated pallet should not be greater than 40% of the total area of the bottom. 4.3.8 Crossbar of ladder
The center distance of the crossbar of ladder should not be greater than 400mm. The width of the crossbar should not be less than 30mm. 4.3.9 Quality requirements of welded parts
The welding surface should be uniform and there should be no defects such as leakage, cracks, slag inclusions, burn-through, arc pits, etc. 4.3.10 Technical requirements for surface protection layer
The technical requirements for surface protection coating (plating) layer are shown in Table 10. (See Appendix C for surface protection treatment methods of steel bridge). 4.3.10.1
Technical requirements for surface protection layer
Type of surface protection layer
Surface protection
Thickness of layer
Bridge components
Fasteners
Adhesion
Uniformity
Hot-dip galvanizing
≤M10:20
M10-M20:35
2M2045
Zinc layer should not peel
, peel off, bulge
The zinc layer should not be exposed
Metal substrate
Electro-galvanizing
SM6: 26
M8-M12: ≥9
2M14: 212
Zinc compensation shall not have peeling, peeling, bulging and other phenomena. The thickness of the thinnest coating on its surface shall not be less than 80% of the allowable thickness, and shall not exceed 20% of the test points. The coating surface shall be evenly grooved, free of burrs, over-burning, dust hanging, scars and other defects, and the diameter shall be less than 2mm. The number of missed plating points shall not exceed
, and there shall not be more than two missed plating points in any
100em2 area
. The surface of the coating shall be smooth,
uniform and dense, and shall not
1993 The third line of regulations: the coating surface has no obvious layering. The thickness of the thin film on the surface of the anodized plate shall not be less than 80% of the allowable thickness, and shall not exceed 20% of the test point. When viewed from a certain distance, the coating is uniform, smooth, flat, without cracks, peeling, and flaking. There are peeling, bubbles, and spots on the effective surface. There should be no defects that can be observed by the naked eye. Note: For composite anti-corrosion treated bridges that are sprayed with powder or painted after galvanizing, the stratification shall comply with the specific provisions of the corresponding protective layer in the table. Powder spraying or painting can only be carried out after the electro-galvanizing or hot-dip galvanizing is qualified. 4.3.10.2 The anti-corrosion treatment of accessories should be consistent with the main structure of the bridge, and the anti-corrosion treatment of fasteners is shown in Table 10. 4.3.10.3 Whether the surface treatment of various types of supports and hangers is consistent with the pallet and ladder rack can be negotiated by the manufacturer and the user. JB/T102162000
4.3.11 Quality requirements for FRP and other non-metal bridges 4.3.11.1 The outer surface of FRP and other non-metal bridges should be flat, smooth, free of scratches, missing materials, cracks, inconsistent color, spots and other defects. There should be no delamination burrs on the sawing, cutting, punching section and the connection hole section. 4. 3.11.2 FRP and other non-metal bridges should have certain water resistance and corrosion resistance. 4.3.11.3 FRP and other non-metal bridges should have reliable insulation performance, and their surface resistivity should be greater than or equal to 10°2, and their volume resistivity should be greater than or equal to 10·cm.
4.3.11.4 Fiberglass and other non-metallic bridges should not be ignited. If ignited, the flame should be limited. 4.3.12 Protection circuit continuity
Metal bridge systems should have reliable electrical connections and grounding. The technical requirements for protection circuit continuity are: the connection resistance at the cross-connection point should be less than or equal to 50m2: the connection resistance at the non-connection point should be less than 5mS/m. Fiberglass or other non-metallic bridges can be equipped with special grounding wires along the entire length of the bridge as needed. The cross-sectional area can be negotiated between the user and the manufacturer according to the relevant provisions of 7.4.3.1.7 in GB7251.1-1997.
4.3.13 Mechanical load
4.3.13.1 Normal mechanical load
In addition to its own weight, the bridge should also include the mechanical load of the wires and cables it can withstand. a) The required mechanical stiffness can be obtained by selecting the thickness and shape of the material, or by the fixed bracket distance specified by the manufacturer. b) When the bridge is subjected to the rated uniform load, its relative deflection should not be greater than 1/200 for steel, 1/300 for aluminum, and 1/200 for FRP (see Table 11). Table 11 Typical cable tray load table
FRP
Span of support and hanger
Height 100mm
Rated uniform load N/m
Side 150m
Note: The rated uniform load of other support and hanger spans is determined by the manufacturer! "Given in the technical documents. Side height 200mm
Deflection value (not more than)
c) Various types of supports and hangers should be able to withstand the rated uniform load of pallets and ladder racks of corresponding specifications (number of layers) and meet the requirements of strength, rigidity and stability. The maximum deflection value of the cross arm of the steel hanger or the wall-fixed bracket when bearing the rated load should not be greater than 1/100 of the length of the bracket itself. When the bracket is an aluminum profile, it should not be greater than 1/150. See Appendix B for typical examples. 4.3.13.2 Special mechanical loads
In addition to bearing normal mechanical loads, the bridge system should not be used as a pedestrian passage. If it is used as a pedestrian passage or other purposes, the special design for this purpose should be negotiated between the manufacturer and the user. 4.3.14 Impact resistance
The pallet and ladder rack should be able to withstand the impact of 10J in Table 2 of GB/T2423.46-1997. After the collision, there should be no deformation and cracks that affect safe use.
4.3.15 Fire-resistant cable tray
The fire-resistant cable tray should comply with the different fire resistance levels given in Table 5. 8bzxZ.net
5 Test method
JB/T102162000
Glass fiberglass and other non-metallic bridges can only be tested 240 hours after the completion of manufacturing. 5.1 Appearance inspection
The appearance of the bridge is inspected by visual inspection and hand touch inspection. After the test, it should meet the relevant provisions of 4.3.9~4.3.11.1 of this standard.
5.2 Mechanical load test
The mechanical load test of the bridge can be based on the load of the straight section joint part. When the test is passed, the mechanical load test of the straight section and the bend without joints can be omitted. 5.2.1 The mechanical load test of the straight section and the straight section joint part verifies the reliability of the structural strength of the pallet and ladder rack when installed horizontally according to the rated load given in Table 11. 5.2.1.1 Sample requirements
The sample is a true line segment, no less than two pieces and necessary connectors. The distance between the support bracket and the rated uniform load value shall be in accordance with the provisions of Table 11. The load test of the straight section and the straight section joint part shall be arranged according to Figures 1 and 2 respectively. L/4
1-Pallet ladder test piece:
2-China 25 round steel;
3-Steel bracket base:
4=V-shaped steel bar (width 30l, height 200mm, with a 5mm deep, 12c° V-shaped groove): L-bracket span ().
1 Pallet ladder test piece;
Straight section load test layout form
J00000
2-China 25 national steel
3-Xie branch channel base,
4=V-shaped steel bar (width 30mm, height 200mm, with a 5mm deep, 120°√-shaped groove); 5-Connection plate:
L-Support bracket span (am).
Straight section joint part load test layout form 9
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