Fire alarm system installation requirements and specifications

The fire alarm system and equipment installation requirements go line method:

The 1 wiring

The conductor 1.1 used must conform to the national standard requirements, and have product certification CCC certification.

1.2 different uses, among different voltage and current type wire application color separation. In the same building wire color the same purposes should be unified.

The 1.3 wire should be checked before opening mouth is neat, such as missing and damaged should supplement and replacement.

The 1.4 through the wire tube should not be joint, the insulation shall not be damaged, the wire shall not distort, the joint should be located in the junction box.

The 1.5 section is 2.5mm2 and the multi strand copper wire line core should be terminal crimping terminal equipment, appliances and then connected.

The 1.6 alarm bus using Z-RVS2*1.5 double color line, power bus using BV2*2.5 double color line.

The 1.7 insulating shake measure in the terminal box to the bus and branch line is disconnected, the system bus and each branch line alone shake measure and fill in the record sheet.

2 equipment installation

The 2.1 detector must be installed in the circuit insulating shake measure after. If the wind pipe, outlet, lighting may be necessary to shift, such as displacement beyond the scope of protection, should be the design change.

2.2 detectors around the 0.5m should not have shelter, detector to outlet horizontal distance of not less than 1.5m, the detector to the wall, beam side horizontal distance of not less than 0.5m.

The 2.3 detector edge and the lighting of the horizontal distance of not less than 0.2m.

The 2.4 detector and sprinkler head distance shall not be less than 0.3m.

2.5 detectors should be installed horizontally.

The 2.6 alarm controller is installed near the door of the side away from the wall should not be less than 0.5m, the positive operation distance of not less than 1.2m.

The 2.7 controller external wiring should be neat, avoid cross wiring and should be firmly fixed. The end of the conducting wire should be numbered and consistent with the drawings.

Each terminal 2.8 controller terminal board, terminal shall not be more than 2 root.

The 3 grounding system

3.1 fire control room working earthing shall be copper core insulation wire, wire core section 4mm2, grounding resistance should be less than 4 ohm.