BS/EN 50518-2019 pdf download.Monitoring and Alarm Receiving Centre.
Security shall be such that the ARC is protected by an intruder and hold-up alarm system (I&HAS) in accordance with EN 50131-1. grade 3.
The control and indicating equipment for the ARC l&HAS shall be located within the ARC shell.
The areas of the building occupied by the company which operates the ARC, and in which the ARC is located, shall be protected by an I&HAS installed in accordance with EN 50131-1. Such intruder alarm systems shall incorporate a warning device to alert the ARC operators immediately on notification of an alarm.
Recommendations for design, planning, operation, installation and maintenance are given in the application guidelines CLCITS 50131-7.
6.1.3 Glazed areas
Any glazed area which has the facility to be opened shall be fitted with detection to detect when open.
6.1.4 Fire
The areas of the building occupied by the company which operates the ARC, and in which the ARC is located, shall be protected by a fire detection system in accordance with national requirements for the highest level of property protection and life safety incorporating components certified according to the EN 54 series.
6.1.5 Entrylexit
An audible or visible alarm shall operate within the ARC to notify the operators when any entrance or exit door to the ARC or lobby is not secured, except where the entrance lobby doors have been opened for authorized entry I exit
An alarm condition shall be signalled when an emergency exit door is opened or both of the entry doors to the lobby and ARC are open at the same time.
6.1.6 Gas
The ARC shall have detection systems for at least carbon monoxide, which will give warning to the ARC employees prior to levels reaching a concentration necessitating evacuation.
6.1.7 Hold-up
Hold-up devices installed In accordance with EN 50131-1 shall be provided inside the ARC in positions adjacent to the entrance lobby, emergency exit(s), transfer hatch(es) I chute(s) and at all the normal operating positions of ARC operators.
6.1.8 Safety monitoring
The safety and security of the ARC operators shaH be automatically checked at a maximum of 60 mm Intervals, When the check is made if there is no response within 60 s an alarm shall be automatically extended to another ARC meeting the requirements for category I of this standard.
6.1.10 Video surveillance system
Video surveillance systems shall be provided so that
a) Ail approaches to the building in which the ARC is located can be monitored from within the ARC in accordance with the application guidelines in EN 62676-4.
b) ARC employees can identify authorized persons before permitting them to enter the entrance lobby, to view any activity therein and to ensure a safe exit.
c) ARC employees can identify any personnel using a transfer hatch I chute.
6.2 Category Il
The ARC shall be fitted with an I&HAS in accordance with EN 50131-1 minrnum grade 2 and shall include at least one hold-up device.
The areas of the building occupied by the company wtitd operates the ARC, and in which the ARC is located, shall be protected by a fire detection system in accordance with national requirements for the highest level of property protection and life safety incorporating components certified according to the EN 54 series.
7 ElectrIcal power supplies
7.1 Mains supply
The mains supply shall be used as the pnncipal source of electrical power, although reliable alternatives can be used. There shall be an indication in the operations area of the current source of power. If the mains supply fails an audible or visible alarm sufficient to alert operators should be signalled in the operations area. The mains supply shall be such that it is capable of providing sufficient power (or the normal load of the ARC and for simultaneously recharging the UPS standby energy storage devices (batteries) to the required capacity within 24 h.
7.2 Standby power supplies
7.2.1 General
A standby power supply shall be of sufficient capacity for the uninterrupted operation of all
communication, signalling, monitoring, recording, electrically operated door locks, essential ventilation
and essential lighting equipment, induding that required for the necessary surveillance (or a period of
24 h based on a demand of 1,2 times the maximum expected load.
Changeover to, or from, a standby power supply shall not affect the normal operation of equipment.
The standby power supply shaU be by a generator or generators supported by an UPS according to
EN 62040-1.BS/EN 50518-2019 pdf download.

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