Beacon BM2, Руководство по установке и пусконаладке

Страница: 7 / 24

Page 7 of 24
5.1 Connecting the Beacon Master Station
To comply with EMC (Electro Magnetic Compatibility) regulations and to reduce the risk of electrical
interference in the system wiring, the use of fire-resistant screened cables is recommended throughout
the installation.
All wiring should come into the enclosure via the knockouts provided and be fixed tidily to the relevant
terminals.
Note that correct cable glanding is essential. Due regard should be paid to any system specifications
which demand a certain cable type, providing it meets the appropriate national wiring regulations.
5.2 Planning the Wiring
All system wiring should be installed to meet the appropriate parts of BS5839 Part9:2021 and BS 7671
(Wiring Regulations). Other national standards of installation should be adhered to where applicable.
Do not test wiring using an insulation tester (Megger) with any
equipment connected, as the 500 Volt test voltage will destroy
these devices.
You must observe local wiring regulations. Do not run SELV and LV cables in the same enclosure
without adequate insulation between them.
5.3 Cable and Wiring Guidance
5.3.1 Fire Telephone system
Any system using Type A outstations must use enhanced grade cabling throughout for all wiring,
including the mains supply to the Beacon Master Station
5.3.2 Disabled Refuge EVC System
For buildings less than 30m in height, or any building with sprinklers fitted, standard grade fire resistant
cable may be used to wire Type B outstation and the mains supply to the Master Controller; as long as
the planned evacuation will be completed in 30 minutes.
If the building is over 30m in height without sprinklers, or where the evacuation will take place over
multiple stages exceeding 30 minutes, then enhanced grade cables must be used.
5.3.3 Combined Systems
For systems containing Type A, Type B or Type C outstations, shared cable such as network cables
must be enhanced grade.
Cabling to Type A or Type C outstations must be in enhanced grade fire resistant cabling.
Individual spurs to Type B outstations can be wired in standard grade fire resistant cabling in
accordance with the wiring guidelines already set out for disabled refuge systems.
5.3.4 “Assist Call” Emergency Assistance Alarm Systems
All installations must conform to Building Regulations Approved Document M. The “Assist Call” is wired
using 2 core cable, and the “Assist Call” plates can be wired in any order.
5.4 Cabling methods
There are 3 cabling methods available:
•
Connection to a Type A or Type C outstation: use 2 core enhanced grade fire resistant cable
when extending a firefighting telephone system.
•
Connection to a Type B outstation: use 2 core standard grade fire resistant cable when
extending a disabled refuge system.
•
Connection to an “Assist Call” system on a dedicated line requires 2 core 1mm CSA or above
PVC sheathed.