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Do-It-Yourself (DIY) Question & Answer Forum
Emergency Lighting
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<blockquote data-quote="Evans Electric" data-source="post: 87679" data-attributes="member: 1408"><p>Hi Nat, In a commercial situation Emgy lights would have key switch for testing. They have to keep a record of tests. You'll see maintained in cinemas and theatres , they are permamently on , if mains fails, battery takes over. You want a non maintained . Just put a permament feed on it . Is it so they can see when breaker trips ? Don't think you really need a test key in that situation TBH, but batteries will last longer if they are discharged occasionally.</p><p></p><p>They could do a 3 hour test a few times a year by switching the MCB off during daylight.</p><p></p><p>Feed it from the same breaker as the lights in same area, you could fit a test keyswitch by the board if you want to be fussy.</p><p></p><p>Deke</p></blockquote><p></p>
[QUOTE="Evans Electric, post: 87679, member: 1408"] Hi Nat, In a commercial situation Emgy lights would have key switch for testing. They have to keep a record of tests. You'll see maintained in cinemas and theatres , they are permamently on , if mains fails, battery takes over. You want a non maintained . Just put a permament feed on it . Is it so they can see when breaker trips ? Don't think you really need a test key in that situation TBH, but batteries will last longer if they are discharged occasionally. They could do a 3 hour test a few times a year by switching the MCB off during daylight. Feed it from the same breaker as the lights in same area, you could fit a test keyswitch by the board if you want to be fussy. Deke [/QUOTE]
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