SS15(a)- Systems for Communicating Spoken Information Intended to Facilitate Evacuation
Emergency Warning | EWIS Inspection for Building WoF
EWIS (Emergency Warning Intercommunication System) requires an ongoing inspection to comply with the building WoF, wish to reduce cost on this inspection?
A EWIS (Emergency Warning and Intercommunication System) is an enhanced system for fire alarm alerting and evacuation control in larger or more complex buildings. Instead of the whole building receiving the (evacuation) alerting signal simultaneously, the premises are instead subdivided into multiple evacuation zones. In response to signals from the fire alarm system, the EWIS system controls a zone-by-zone staged/phased evacuation according to a pre-programmed scheme.
As with “all out” evacuation, the EWIS system generates the standard “rising whoop” evacuation signal and plays a voice message with evacuation instructions. With an EWIS these messages can be customized for various types of installations, and multi-lingual capabilities are usually available. In addition, a preliminary “Alert” tone, with separate verbal message, can be played to zones that have not (yet) reached the evacuation stage. In a high-rise, for example, this would typically mobilise evacuation (floor) wardens.
Maintenance & Testing process (performing standards: _________ etc.)
Planned preventative maintenance and responsive maintenance should be carried out in accordance
with the nominated performance and inspection Standard or document, and to ensure the system
will operate as required in the event of a fire
Typical Testing includes:
- Visually inspect the cabinet and panel to ensure it is clean operable, system components are free from damage
- Is power on?
- Is battery charger fault light & battery light off?
- Does EWIS change over to batteries when mains power off?
- Restore mains power; pressure lamp test to ensure all keyboard modules are working. All working?
- Is PA system working?
- Are whip phones working properly?
- Operate fire panel; does EWIS activate?
- Sealed battery voltages all OK? Etc.
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Action Points
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