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Electrician Talk Forum
Extending a ring.
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<blockquote data-quote="green-hornet" data-source="post: 77132" data-attributes="member: 2683"><p>A spur from any ring, or for that matter a radial would only have to be of a csa required for the purpose of the appliance or load.</p><p></p><p>A combi boiler spurred from a 2.5 ring would only require to be in 1.5, fuse rating 3amp.</p><p></p><p>A socket outlet spuured from a 2.5 ring could be for all intent be in 1.5, however I wouild prefer for it to be of the same csa as the supply ring.</p><p></p><p>What I would not do is connect a 4mm cable to a fused spur supplied from a 2.5 ring.</p><p></p><p>I just would not find any justification for doing so, as the only fuse that could be fitted in the spur is a 13amp.</p></blockquote><p></p>
[QUOTE="green-hornet, post: 77132, member: 2683"] A spur from any ring, or for that matter a radial would only have to be of a csa required for the purpose of the appliance or load. A combi boiler spurred from a 2.5 ring would only require to be in 1.5, fuse rating 3amp. A socket outlet spuured from a 2.5 ring could be for all intent be in 1.5, however I wouild prefer for it to be of the same csa as the supply ring. What I would not do is connect a 4mm cable to a fused spur supplied from a 2.5 ring. I just would not find any justification for doing so, as the only fuse that could be fitted in the spur is a 13amp. [/QUOTE]
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Extending a ring.
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