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Do-It-Yourself (DIY) Question & Answer Forum
Light fault 'tripping' RCD on the ring circuits.
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<blockquote data-quote="Feenster" data-source="post: 554558" data-attributes="member: 37736"><p>I have an offgrid set up with no mains connection at all.</p><p></p><p>Recently, an interesting thing happened. The RCD on the distribution panel 'tripped' when it was wet and windy. After much trial and error I found the problem to be an outdoor light fitting that water was getting into. </p><p>However, the RCD is only on the ring (socket) circuits and shouldn't have anything to do with the lights and yet it 'tripped'. I have 7 socket circuits (each a ring circuit), each with its own MCB, protected by one RCD. This is the RCD that 'trips'. I have no RCD on the radial circuits for the lights. </p><p>(The RCD is a Hager 63A 2 pole RCD 30mA (type A)).</p><p>Is this unusual?</p></blockquote><p></p>
[QUOTE="Feenster, post: 554558, member: 37736"] I have an offgrid set up with no mains connection at all. Recently, an interesting thing happened. The RCD on the distribution panel 'tripped' when it was wet and windy. After much trial and error I found the problem to be an outdoor light fitting that water was getting into. However, the RCD is only on the ring (socket) circuits and shouldn't have anything to do with the lights and yet it 'tripped'. I have 7 socket circuits (each a ring circuit), each with its own MCB, protected by one RCD. This is the RCD that 'trips'. I have no RCD on the radial circuits for the lights. (The RCD is a Hager 63A 2 pole RCD 30mA (type A)). Is this unusual? [/QUOTE]
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Light fault 'tripping' RCD on the ring circuits.
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