Cable tray standard and basic use description Cable tray standard and basic use description:
The purpose of the cable tray: The cable tray is suitable for power cables with voltages below 10 kV, as well as indoor and outdoor overhead cable trenches and tunnels for control cables, lighting wiring, etc. The cable tray has all kinds of varieties, wide application, high strength, light structure, low cost, simple construction, flexible wiring, installation standard, beautiful appearance, convenient maintenance and repair, etc.
Advantages 1. Combination type:
1. According to the form 1) trough
2) Pallet type 3) Step type 2. According to surface treatment, 1) cold galvanized and zinc-nickel alloy 2) spray 3) spray paint 4) hot-dip galvanizing 5) hot spray zinc 2, use environment 1) indoor use 2 ) Altitude does not exceed 1000 meters 3) Ambient temperature -25 ° C ~ 45 ° C
Third, the implementation of standards:
1. JB/T10216-2000 "Cable Bridge for Electric Control Distribution"
2. Enterprise Standard: Q/321182AEG001-1997
3. QB/T1453-92 cable tray
4. Technical requirements for anti-corrosion environment of JB/T6743-93 indoor and outdoor steel cable tray
5. DB32/144-1996 Cable fireproofing tank standard Application scope: Cable trays for indoor and outdoor, high and low voltage transmission and distribution engineering in industrial and civil buildings.
Fourth, technical conditions:
1. Normal use condition
1) The altitude of the installation site should not exceed 2000 meters.
2) Different climate environments use different climatic environmental grade parameters, selected according to temperature, humidity, fire prevention and so on.
2. Special use conditions
1) Laying in different chemical corrosive environments: salt spray, hydrogen sulfide, hydrogen chloride, etc.
2) Lay in the fire line.
3) Lay at an altitude of 2000 meters or more.
3. Cable tray structure requirements
1) Protection level: non-porous tray (slot type) indoors no less than IP30 outdoor no less than IP33
2) Degree of protection: refractory bridge indoors not less than IP40 Outdoors not lower than IP44 Materials should meet their own relevant standards Steel should be cold-rolled steel plate GB/T700-1988 GB/T11253 Aluminum GB/T3880 and GB/6892 glass GB/T15568 refractory bridge GB8624-1997 class B
3) Common specifications 40 50 60 80 100 150 200 Width 60 80 100 150 200 250 300 400 500 600 800 1000 1200
4) Plate thickness Steel bridge allows minimum plate thickness: Width B Allows minimum plate thickness & B1<00 1.0 100≤B<150 1.2 150≤B<400 1.5 400≤B≤800 2.0 800<B<1000 2.5 1000<B <1200 3.0 connection
The thickness of the sheet is at least selected according to the same plate thickness of the bridge. Alternatively, the thickness of the plate can be selected. The thickness of the plate can be selected to be lower by the thickness of the bridge.
5) Length of straight through: L=2000 L=3000 L=4000 L=6000
L=8000
Shenyang Deli Hengqiao Electric Appliance Manufacturing Co., Ltd.
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Contact: Mr. Hang Tel: [email protected]
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