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Twin Mains supply to double socket socket
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<blockquote data-quote="Speed" data-source="post: 521171" data-attributes="member: 33225"><p>Oh Dear! What a lot of amateur electricians there seems out there. It seems some of you do not know much about the history of electrical practise in the UK. As a Senior Electrical Engineer, I probably forgotten more than you seem to know. If you understood electrical theory, you would know the danger of poor workmanship when terminating ring circuits. For instance, if you have a 32A MCB protecting a ring constructed in 2.5 sq. mm cable. If the ring becomes broken due to poor workmanship and the full load of 32A happen to be all on one leg. You have immediately overloaded the cable. Which fails to obey the 'Electricity at Work Regulation 1989' act, regulation 5.</p><p></p><p>It the 'Electricity at Work 1989 Regulations' act that is law. The IEE or now IET regulations BS7671 is merely how you comply with the law. However, BS7671 also assumes you are complying with Regulation 16 of the 'Electricity at Work Regulation 1989' act. Not all Electricians are equal in their knowledge.</p><p></p><p>As for the comment on ring circuits. Of cause I'm referring to final circuits. As I very much doubt from the Q&A's on this site that any of you work on or have a licence to work on 11kV ring circuits. So unless you an Electrical Engineer involved with designing HV distribution system. What other type of ring circuits have you installed?</p><p></p><p>As for twisting ends on a ring, if terminated properly. There should plenty of spare on wirers to allow for re-termination in the future. Only fools cut the wirers short when terminating? You should have enough spare to go twice the length of the backbox before terminating in front plate.</p></blockquote><p></p>
[QUOTE="Speed, post: 521171, member: 33225"] Oh Dear! What a lot of amateur electricians there seems out there. It seems some of you do not know much about the history of electrical practise in the UK. As a Senior Electrical Engineer, I probably forgotten more than you seem to know. If you understood electrical theory, you would know the danger of poor workmanship when terminating ring circuits. For instance, if you have a 32A MCB protecting a ring constructed in 2.5 sq. mm cable. If the ring becomes broken due to poor workmanship and the full load of 32A happen to be all on one leg. You have immediately overloaded the cable. Which fails to obey the 'Electricity at Work Regulation 1989' act, regulation 5. It the 'Electricity at Work 1989 Regulations' act that is law. The IEE or now IET regulations BS7671 is merely how you comply with the law. However, BS7671 also assumes you are complying with Regulation 16 of the 'Electricity at Work Regulation 1989' act. Not all Electricians are equal in their knowledge. As for the comment on ring circuits. Of cause I'm referring to final circuits. As I very much doubt from the Q&A's on this site that any of you work on or have a licence to work on 11kV ring circuits. So unless you an Electrical Engineer involved with designing HV distribution system. What other type of ring circuits have you installed? As for twisting ends on a ring, if terminated properly. There should plenty of spare on wirers to allow for re-termination in the future. Only fools cut the wirers short when terminating? You should have enough spare to go twice the length of the backbox before terminating in front plate. [/QUOTE]
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Twin Mains supply to double socket socket
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