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Cooker circuit fault blew DNO fuse !
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<blockquote data-quote="sparkytim" data-source="post: 194979" data-attributes="member: 8627"><p>Probably it would</p><p></p><p>Its all in the curves BRB APPENDIX 3</p><p></p><p>Note Pg 245 BS 3036 Fuses 30 A will need 450Amps to blow in 0.1 sec</p><p></p><p>Compare with Pg 249 60898 MCBs 32 A will need only 160 Amps.</p><p></p><p>If you do a L-N PFC test at the Cooker switch you will see what the Fault current could well have been, Possible 1KA or more if Zs low enough.</p><p></p><p>The Service Fuse was doing its job in providing Back-up protection.</p></blockquote><p></p>
[QUOTE="sparkytim, post: 194979, member: 8627"] Probably it would Its all in the curves BRB APPENDIX 3 Note Pg 245 BS 3036 Fuses 30 A will need 450Amps to blow in 0.1 sec Compare with Pg 249 60898 MCBs 32 A will need only 160 Amps. If you do a L-N PFC test at the Cooker switch you will see what the Fault current could well have been, Possible 1KA or more if Zs low enough. The Service Fuse was doing its job in providing Back-up protection. [/QUOTE]
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Cooker circuit fault blew DNO fuse !
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