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Do-It-Yourself (DIY) Question & Answer Forum
Lights Tripping RCD when they turn off........Sometimes
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<blockquote data-quote="Barx" data-source="post: 490763" data-attributes="member: 121"><p>Yes. at 250V with L&amp;N together to earth. I get 0.00 M Ohm. But I'm unsure if that is to be expected or not with the type of fitting. I simply Don't know. Hence I'm asking. I cannot access the first 2 fittings on the circuit (going to try today) but if I split the circuit after them and test after, the reading is the same. If I connect just one fitting, the reading is the same. I've tried multiple. Which is what makes me think it just might be normal, I don't know.</p><p></p><p>With the issue only arrising with the lights have been off or on for a while, it's like a capacitor is charging or something and causing the issue.</p><p></p><p></p><p></p><p></p><p>Tell me about it. The board does have 2 unprotected ways, and the lights were temped onto one of those prior to me visiting. but powers above me say they need to go on RCD <img class="smilie smilie--emoji" loading="lazy" alt="🤦♂️" title="Man facepalming :man_facepalming:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f926-2642.png" data-shortname=":man_facepalming:" /></p><p></p><p>If I don't get anywhere by dinner time today, I'm going to suggest tthat the light switches are RCD protected and the Lights themselves, not. See if that will satisfy them. The switces come back to board for staircase timer. So, thinking switches activate staircase timer, Timer operates a new contactor. Lights circuit runs through contactor. I can only imagine they want the lights RCD protecting for the switch drops that are &lt;50mm, so the above should satisfy that.</p></blockquote><p></p>
[QUOTE="Barx, post: 490763, member: 121"] Yes. at 250V with L&N together to earth. I get 0.00 M Ohm. But I'm unsure if that is to be expected or not with the type of fitting. I simply Don't know. Hence I'm asking. I cannot access the first 2 fittings on the circuit (going to try today) but if I split the circuit after them and test after, the reading is the same. If I connect just one fitting, the reading is the same. I've tried multiple. Which is what makes me think it just might be normal, I don't know. With the issue only arrising with the lights have been off or on for a while, it's like a capacitor is charging or something and causing the issue. Tell me about it. The board does have 2 unprotected ways, and the lights were temped onto one of those prior to me visiting. but powers above me say they need to go on RCD 🤦♂️ If I don't get anywhere by dinner time today, I'm going to suggest tthat the light switches are RCD protected and the Lights themselves, not. See if that will satisfy them. The switces come back to board for staircase timer. So, thinking switches activate staircase timer, Timer operates a new contactor. Lights circuit runs through contactor. I can only imagine they want the lights RCD protecting for the switch drops that are <50mm, so the above should satisfy that. [/QUOTE]
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Lights Tripping RCD when they turn off........Sometimes
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