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Student & Learning Zone - City & Guilds
guide to the 2392
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<blockquote data-quote="ADS" data-source="post: 121234" data-attributes="member: 7231"><p>If your working in T&amp;E, then there is only going to be 'Line' and CPCs in you switch and strapper cables, no neutral.</p><p></p><p>This is why you throw the switches on your IR L-E.... that's all that's likely to be there.</p><p></p><p>Even if you're looping at the switches (eg your first 2-way switch), the only neutrals are going to be in a seperate cable running to the lighting from your first 2-way.</p><p></p><p>A different kettle of fish if you're wiring in singles, of course, (eg conduit/trunking) coz there'd be a good likelyhood that the strappers and neutrals will be run together and therefore you should operate switches on L-N as well. N-E test doesn't require switching as it doesn't affect them.</p><p></p><p>To be honest, I'd operate them on both tests anyway, just to be on the safe side - unless you're 100% certain there aren't any neutrals in the vicinity, then you only need operate on L-E<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p></blockquote><p></p>
[QUOTE="ADS, post: 121234, member: 7231"] If your working in T&E, then there is only going to be 'Line' and CPCs in you switch and strapper cables, no neutral. This is why you throw the switches on your IR L-E.... that's all that's likely to be there. Even if you're looping at the switches (eg your first 2-way switch), the only neutrals are going to be in a seperate cable running to the lighting from your first 2-way. A different kettle of fish if you're wiring in singles, of course, (eg conduit/trunking) coz there'd be a good likelyhood that the strappers and neutrals will be run together and therefore you should operate switches on L-N as well. N-E test doesn't require switching as it doesn't affect them. To be honest, I'd operate them on both tests anyway, just to be on the safe side - unless you're 100% certain there aren't any neutrals in the vicinity, then you only need operate on L-E;) [/QUOTE]
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guide to the 2392
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