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Electrician Talk Forum
Best way to find a short circuit between L and N? I.e a tripping MCB.
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<blockquote data-quote="Tim Howard" data-source="post: 558298" data-attributes="member: 38109"><p>As mentioned above a clue can be whether a it’s an instant loud trip (magnetic mechanism) or takes a bit longer (thermal trip)</p><p>If you are getting a quick mag trip then there’s a chance of a very very low continuity reading to help track it down.</p><p>(Btw if it’s a glorious old Crabtree C50 board they ?uniquely only have mag trips)</p><p></p><p>After that if you can’t find it it’s down to breaking the circuit down to find out what <strong>isn’t</strong> causing it.</p></blockquote><p></p>
[QUOTE="Tim Howard, post: 558298, member: 38109"] As mentioned above a clue can be whether a it’s an instant loud trip (magnetic mechanism) or takes a bit longer (thermal trip) If you are getting a quick mag trip then there’s a chance of a very very low continuity reading to help track it down. (Btw if it’s a glorious old Crabtree C50 board they ?uniquely only have mag trips) After that if you can’t find it it’s down to breaking the circuit down to find out what [B]isn’t[/B] causing it. [/QUOTE]
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Best way to find a short circuit between L and N? I.e a tripping MCB.
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