Internal installation code for outdoor equipment box of monitoring system
According to the requirements and actual construction experience, the design of distribution lines in flammable and explosive environment in the workshop are generally to the bridge, supplemented by steel pipe and cable trench laying, all cables should use flame retardant cable.Cabling should be routed as far as possible from the explosive source and explosive material pipeline. For flammable and explosive gas should be investigated in the environment of explosive gas proportion, if the proportion of dangerous gas is lighter than air, the cable should be laid in the following as (along the wall or ground); and for dangerous gas lighter than air environment, the cable should be laid in the above (as far as possible along a wall or shelf space).
Plate wire, video wire without what specific requirements, beautiful step line, BNC head firmly enough, optical fiber jumper worth mentioning, avoid the 90 degree turn, the loss is relatively large, there may be loss of 1 2DBM, also not part of the extra ring jumper stampede, tie wire, fiber porcelain head don't stain and cleaned with alcohol and dirty.
The transmitter placed 1; to pay attention to, moisture-proof, waterproof, anti condensation, the best way is hanging in the chassis, or put on the partition can also be.2, should pay attention to grounding lightning protection, transmitter did two lightning protection, best grounding, grounding port is connected to this port, no the cathode lead lines from the ground on the OK, this summer's failure rate down
