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Do-It-Yourself (DIY) Question & Answer Forum
Cross-section area of MIMS sheath
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<blockquote data-quote="brummydave" data-source="post: 479919" data-attributes="member: 18490"><p>good rule of thumb to know, thank you.</p><p></p><p></p><p></p><p></p><p>not quite, according to the table on Andy's link. Pyro/Mineral insulated is higher than PVC but only a bit as I read it?</p><p></p><p>They say 10mm mims, carries 69A bare, 77A covered. But from appendix four in 7671, it does say 77A in 4G1A and a whopping 96A in 4G2A!</p><p></p><p>In App 4, I found that PVC cables, clipped direct are:</p><p></p><p>10mm TnE 64A, SWA 67A, Single 65A.</p><p></p><p>16mm TnE 85A, SWA 89A, single 86A</p><p></p><p>As ever, every installation is unique and no value fits all!</p></blockquote><p></p>
[QUOTE="brummydave, post: 479919, member: 18490"] good rule of thumb to know, thank you. not quite, according to the table on Andy's link. Pyro/Mineral insulated is higher than PVC but only a bit as I read it? They say 10mm mims, carries 69A bare, 77A covered. But from appendix four in 7671, it does say 77A in 4G1A and a whopping 96A in 4G2A! In App 4, I found that PVC cables, clipped direct are: 10mm TnE 64A, SWA 67A, Single 65A. 16mm TnE 85A, SWA 89A, single 86A As ever, every installation is unique and no value fits all! [/QUOTE]
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Cross-section area of MIMS sheath
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