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High Volt Drop On Lighting Circuit 2A Mcb?
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<blockquote data-quote="Sidewinder" data-source="post: 381588" data-attributes="member: 9512"><p>Neither are deviations.</p><p></p><p>The MCB values listed in BS7671 are merely those common on installations.</p><p></p><p>As long as the MCB meets the disconnection requirements of 60898 or 60947 then it complies with 7671.</p><p></p><p>Basically the same applies to MCCB's they meet 60947.</p><p></p><p>60947 is a recognised standard in 7671 thus equipment to 60947 meets the requirements of 7671 without a deviation.</p><p></p><p>Otherwise 7671 would be limited to installations meeting the OSG guidance as 60898 breakers only really "do" domestic up to 100A.</p><p></p><p>There is nothing wrong with using manufacturers data for Zs for example.</p></blockquote><p></p>
[QUOTE="Sidewinder, post: 381588, member: 9512"] Neither are deviations. The MCB values listed in BS7671 are merely those common on installations. As long as the MCB meets the disconnection requirements of 60898 or 60947 then it complies with 7671. Basically the same applies to MCCB's they meet 60947. 60947 is a recognised standard in 7671 thus equipment to 60947 meets the requirements of 7671 without a deviation. Otherwise 7671 would be limited to installations meeting the OSG guidance as 60898 breakers only really "do" domestic up to 100A. There is nothing wrong with using manufacturers data for Zs for example. [/QUOTE]
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High Volt Drop On Lighting Circuit 2A Mcb?
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