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Metal Garage Cabinet Class B and Class D system

Date:2016/9/18 click:2306times

"Metal Garage Cabinet" when the distribution main class B and class D output system laid in the shaft, shall meet the following requirements: 1 retardant wire wear metal pipe or flame resistant treated hard plastic pipe protection, without laying burning body, and the protective layer thickness of not less than 30mm. 2 flame retardant cable should be laid in the fire trough or fire bridge. 3 mineral insulated cable or Class A fire cable can be laid in the tray. The Class B and Class D output distribution system should be used flame-retardant wire feeder, the outer shaft should be laid bunched laid in fire trunking, branch lines should wear metal pipe laying. Emergency lighting branch line does not cross the fire district.