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Todays PITA job / rantlet / question
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<blockquote data-quote="kme" data-source="post: 185718" data-attributes="member: 113"><p>Thanks for all input guys - resolution as follows:</p><p></p><p>Snakehips - ALL the S/O ccts in public areas are fed from contactors. The idea is that, if they`re having a disco or live band, and the fire alarms go off; the rings are shut down at the same time; i.e. contactor fed via 24V relay from fire alarm outputs. They also have a noise pollution system, which will isolate certain circuits if the noise level is above H&amp;S recommended maximums <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </p><p></p><p>Fracticus: Assumptions fairly sound - there ARE CPCs at the DB - 49 of them to be precise. Which 2 belong to MY ring? Gawd only knows. The earth bar only has 15 holes, so they`re not in the same order (naturally).</p><p></p><p>The hotel chain simply wouldn`t sign off on a shutdown - they`d ignore it first. SRCDs would have worked; but it`d have been messy, as many of the sockets are singles flush mounted - the conduits protrude into the boxes approx 12mm, so getting the boxes OUT to replace `em with DSOs would have been a `mare.</p><p></p><p>The issue was a (brass) platescrew, which had snagged and ripped the neutral conductor behind a SSO- said conductor was leaning against side of back box...........Repaired, refitted and RCBo`d within 2 hrs. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Thanks again for the input guys Guinness </p><p></p><p>KME</p></blockquote><p></p>
[QUOTE="kme, post: 185718, member: 113"] Thanks for all input guys - resolution as follows: Snakehips - ALL the S/O ccts in public areas are fed from contactors. The idea is that, if they`re having a disco or live band, and the fire alarms go off; the rings are shut down at the same time; i.e. contactor fed via 24V relay from fire alarm outputs. They also have a noise pollution system, which will isolate certain circuits if the noise level is above H&S recommended maximums ;) Fracticus: Assumptions fairly sound - there ARE CPCs at the DB - 49 of them to be precise. Which 2 belong to MY ring? Gawd only knows. The earth bar only has 15 holes, so they`re not in the same order (naturally). The hotel chain simply wouldn`t sign off on a shutdown - they`d ignore it first. SRCDs would have worked; but it`d have been messy, as many of the sockets are singles flush mounted - the conduits protrude into the boxes approx 12mm, so getting the boxes OUT to replace `em with DSOs would have been a `mare. The issue was a (brass) platescrew, which had snagged and ripped the neutral conductor behind a SSO- said conductor was leaning against side of back box...........Repaired, refitted and RCBo`d within 2 hrs. :) :) Thanks again for the input guys Guinness KME [/QUOTE]
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