BS 8627-2019 Fire and rescue service equipment – Ultra-high pressure firefighting equipment – Specification

BS 8627-2019 Fire and rescue service equipment – Ultra-high pressure firefighting equipment – Specification.
4.2 SaFety reqiliremenis
4.2.1 General
The system shall autoiflabcoIy switch off when communicabon between the bnce and the contml panelIbst
The system shall 080w isoLation of the activation mechanism at the Lance to ensure umntention.al operation of the activation mechanism dunoll transit or movement does not resuk in an emission oia h.gh-presswe et of water from the noule.
4.2.2 Safety devices agelnat back flow
The system shall have a safety device prevenLin the back flow to the ukra-hiØl pressure water SOUrCe.
The system shall be designed to ensure that the safety device cannot be switched oft or made rnoperatwe.
4.2.3 Safety devices igalost exceeding niazi.ium allowable working pressure
The system shall have a safety device preventing the masimum allowable working pressure being esceeded ti1t more than 10%
The system shall be designed to ensure that the safety device casnot be switched off or nude inoperative.
4.2.4 Safety devices against system blockage
The system shall have a manually-operated device wlud, releases the pressure in the system in the event of a blockage.
The system shall be designed in such a way to ensure that the safety device cannot be switched off or made inoperative.
The manually operated device shall be dwty labelled.
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4.2.5 Pressure indicator
The system shall have a pressure indicator directly displaying the actual operating pressure of the hquid at the outlet of the ultra-high pressure water sourc. in bar The display shall be readily visible to the operator and the masimum allowable working pressure dull be marked
4.2.6 Emergency stop
The UHPFE shall be equipped with emergency stop devices relerant to specific hazards, based on die risk aswasaicat to be can’Sed aid by thr manulatturer The operation of the emergency stop shall conkwm to OS EN 60204-I.
The emergency stop shall safety stop the flow of wjter reduce the pressure in the system to (I bar and isolate electrical power to the system.
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4.2.7 Drain valve
Drain openings shall be in accordance with the safety distance raquerinents in ItS Eh ISO 13857.BS 8627 pdf download.