Precautions for flame-retardant cable use

Release time： 2021-12-21 14:57

【Summary description】 (1) In the same channel, non-combustible cable and non-combustible cable should not be configured in parallel.

(1) In the same channel, non-combustible cable and non-combustible cable should not be configured in parallel.
(2) In the following places or circuits where the external fire action takes a certain time to maintain electricity, the exposed cables should be fire-resistant protection or fire-resistant cables. Such as fire, alarm, emergency lighting, interrupter operation DC power supply and generator emergency shutdown of the power supply and other important circuits; Computer monitoring, dual relay protection, security power supply and other double circuit use the same channel is not isolated from each other when one of the circuits.
(3) When the number of cables is small, fire-proof coating, tape can be added to the cable or the cable through the fire-resistant pipe. When there are more cables in the same channel, it is appropriate to lay them in the refractory tank box, and the power cable should be breathable. In the environment without flammable dust, it can be semi-enclosed. When the protection section of the cable laid on the bridge is not long, fire retardant bag can also be used.