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Lighting & Electrical
Lighting system causes buzz/hum in the circuit breaker panels
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<blockquote data-quote="David Buckley" data-source="post: 63954" data-attributes="member: 2235"><p>Re: Lighting system causes buzz/hum in the circuit breaker panels</p><p></p><p></p><p></p><p>Yeah, know what you mean.</p><p></p><p>I had a dimmer on the workbench a couple of years ago, an old specimen, but one of which there are loads of around New Zealand, they are the "standard" dimmer. Anyway, I plugged it in and the bench RCD (GFCI) tripped. Odd, I thought... So I opened her up and...</p><p></p><p><img src="http://davidbuckley.name/pix/tl_dimmer_bond.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>When the faxed diagram arrived, the bond was shown on there too. Just to be clear - this is a dimmer with a 5 pin plug on it intended to operate off a three phase socket.</p><p></p><p>Turns out that every dimmer that left the factory for decades had this bond, and worse than that, many are still in use every day. and still have this bond.</p><p></p><p>Un-be-fookin-leave-able.</p></blockquote><p></p>
[QUOTE="David Buckley, post: 63954, member: 2235"] Re: Lighting system causes buzz/hum in the circuit breaker panels Yeah, know what you mean. I had a dimmer on the workbench a couple of years ago, an old specimen, but one of which there are loads of around New Zealand, they are the "standard" dimmer. Anyway, I plugged it in and the bench RCD (GFCI) tripped. Odd, I thought... So I opened her up and... [IMG]http://davidbuckley.name/pix/tl_dimmer_bond.jpg[/IMG] When the faxed diagram arrived, the bond was shown on there too. Just to be clear - this is a dimmer with a 5 pin plug on it intended to operate off a three phase socket. Turns out that every dimmer that left the factory for decades had this bond, and worse than that, many are still in use every day. and still have this bond. Un-be-fookin-leave-able. [/QUOTE]
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Lighting system causes buzz/hum in the circuit breaker panels
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