Wiring & Installation

Fire Risk Assessments Fire Extinguishers Fire Alarms Fire Doors Emergency Lighting Fire Training Selection Guide CCTV Security Alarms

Fire Alarm Systems -- Types of Fire Alarm Systems -- System Design -- Control of Indicating Panels -- Detector Heads -- Manual Call Points -- Alarm Sounders -- Power Units -- Diversion Relays -- Self Contained Fire Alarms -- Wiring & Installation -- Inspection & Servicing -- Statutory Regulations

Recommendations as to suitable types of wiring and cables are included in the British Standard together with minimum conductor sizes, It also indicates suitable cable types for monitored or non monitored circuits according to the type of installation. The Institution of Electrical Engineers Regulations for the Electrical Equipment of Buildings Regulations refers to the necessary segregation of fire alarm circuit wiring. Provision should be made for end line devices to be fitted, where necessary, for line fault monitoring.

Points to consider

Conductor rating for alarm load and volt drop requirements
Compliance with the British Standard and IEE Regulations for Segregation of Services
Cable type and installations suitable for monitored or non monitored systems
Earthing in accordance with the IEE Regulations
Cables suitable for ambient air temperature
Mains voltage power supply to control equipment in accordance with the Regulations
For surface laid insulated and sheathed cables protection provided where mechanical damage or attack by rodents or where cables are installed less than 2.5 metres from floor

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