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Electrician Talk Forum
Pme again with workshop help please
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<blockquote data-quote="apprentice87" data-source="post: 412146" data-attributes="member: 13534"><p>You would not.. You WOULD fit a TD RCCB for example, at the feed end of a submain, to provide discrimination with other standard devices in series with it further down the line. For example, the submain might feed five sheds in your garden, and you would not want a fault in one shed to shut off the supply to all five sheds, so you would feed the submain with a TD one and fit standard ones to the Cu's in the sheds.</p><p></p><p>You would NOT have a TD RCD protecting the CU in your house, it would not be permitted, it would have to be a standard one in order to protect against shock hazards.</p><p></p><p>john..</p></blockquote><p></p>
[QUOTE="apprentice87, post: 412146, member: 13534"] You would not.. You WOULD fit a TD RCCB for example, at the feed end of a submain, to provide discrimination with other standard devices in series with it further down the line. For example, the submain might feed five sheds in your garden, and you would not want a fault in one shed to shut off the supply to all five sheds, so you would feed the submain with a TD one and fit standard ones to the Cu's in the sheds. You would NOT have a TD RCD protecting the CU in your house, it would not be permitted, it would have to be a standard one in order to protect against shock hazards. john.. [/QUOTE]
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