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<blockquote data-quote="BorisJ" data-source="post: 524761" data-attributes="member: 32482"><p>Neither of them are fuse boxes, they have no fuses.</p><p></p><p>MCB/RCDs are not very dangerous. All RCBOs are more convenient.</p><p></p><p>CU's don't have to be metal, the requirement is non combustible. Some plastics are claimed to be non combustable. Metal is combustable if it is hot enough. Metal is actually more dangerous for someone working on a CU as there are still live parts inside when the main switch is off.</p><p></p><p>The regs don't make sence and it came about due to pressure from the London fire Brigade. Fireman are good at what they do but they are not electricians.</p></blockquote><p></p>
[QUOTE="BorisJ, post: 524761, member: 32482"] Neither of them are fuse boxes, they have no fuses. MCB/RCDs are not very dangerous. All RCBOs are more convenient. CU's don't have to be metal, the requirement is non combustible. Some plastics are claimed to be non combustable. Metal is combustable if it is hot enough. Metal is actually more dangerous for someone working on a CU as there are still live parts inside when the main switch is off. The regs don't make sence and it came about due to pressure from the London fire Brigade. Fireman are good at what they do but they are not electricians. [/QUOTE]
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