The latest code requirements of hotel fire protection

(1) The wiring of automatic fire alarm system engineering shall comply with the current national standard "Code for Construction and Acceptance of Wiring Engineering of Electrical Equipment below 1KV" GB50258-96.

(2) The core section of transmission line of automatic fire alarm system shall meet the technical requirements and mechanical strength requirements. The minimum cross section of copper-core insulated conductor laid through pipes shall not be less than1.0mm2; ; The minimum cross section of the insulated conductor laid in the wire groove shall not be less than 0.75mm2；; The minimum cross section of multi-core cable shall not be less than 0.5mm2

(3) Transmission lines shall be wired by passing through metal pipes, flame-retardant hard plastic pipes or closed trunking protection. (4) When underground laying is used, it should be laid in a non-combustible structure, and the thickness of the protective layer should not be less than 3cm.

(5) When exposed coating is used, metal pipes or metal trunking should be used for protection, and fireproof coatings should be applied on the metal pipes or metal trunking for protection.

(6) When using flame-retardant cables, it is not necessary to wear metal pipes for protection, but it should be laid in a cable shaft or a closed trunking with fire prevention measures in the ceiling.

(7) Lines with different systems, different voltage levels and different current categories should not be worn in the same pipe or in the same slot of trunking.

(8) The conductor shall be in the tube or trough, and there shall be no joint or kink. The connectors of wires shall be welded in the junction box or connected by terminals.

(9) Wires leading from junction box and trunking to detector bottom box, control equipment box and speaker box shall be protected by metal hoses.

(10) Nozzles and pipe joints of pipelines laid in dusty or humid places shall be sealed.

(1 1) After laying the wires of the automatic fire alarm system, measure the insulation resistance of the wires in each loop with a 500V megger, and the insulation resistance to the ground shall be not less than 20MΩ. 2. Installation of fire detectors

(1) The horizontal distance from the detector to the wall and beam edge should not be less than 0.5m. (2) There should be no obstacles within 0.5m around the detector.

(3) The horizontal distance between the detector and the air supply outlet of the air conditioner should not be less than 1.5m, and it should be installed near the air return outlet; The horizontal distance from the orifice of perforated air supply ceiling should not be less than 0.5m. 13809003 1 19

(4) When the detector is arranged on the ceiling of the inner walkway with a width less than 3m, it should be arranged in the center.

The installation spacing of temperature detectors shall not exceed10m; ; The installation spacing of smoke detectors shall not exceed15m; ; The distance between the detector and the end wall should not exceed half of the installation spacing of the detector.

(5) The detector shall be installed horizontally. When installation must be tilted, the tilt angle should not be greater than 45.

(6) The base of the detector should be fixed firmly. If there is an alarm confirmation light, it should be in the direction of the entrance for personnel to observe. (7) The outer conductor of the detector shall have a margin of not less than15cm.

(8) The detector can only be installed when it is about to be debugged. Before installation, it should be properly kept, and dust-proof, moisture-proof and anti-corrosion measures should be taken.

3. Install the manual fire alarm button

Manual fire alarm button can confirm fire or manual fire.