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Do-It-Yourself (DIY) Question & Answer Forum
Bonding Required?
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<blockquote data-quote="kme" data-source="post: 369213" data-attributes="member: 113"><p>Okay. Commercial premises being rewired from scratch.</p><p></p><p>A series of 5 interconnected sheds. Existing was one DNO supply point, subbed to all 5 sheds - but we`re having our own TN-C-S installed.</p><p></p><p>All OUR water is alcathene; however; the water service enters the first shed in copper, and runs all the way to the end shed - feeding everyone along the way.</p><p></p><p>The pipe is installed at roof height - 6.5 metres - along the steel girder forming the front of the building.</p><p></p><p>Our plumber has teed into the pipe, and brought out alcathene to all our services.</p><p></p><p>We`re bonding the structural steel anyway - but I need to justify installing a 50mm ( or maybe 75mm) main bonding conductor across the whole length of the building - 50 metres.</p><p></p><p>On the one hand - the water service is IN our building - but inaccessible ( effectively) ; but on the other, the client sees our water service as plastic.</p><p></p><p>OR - would you deviate, and bond the copperwork to the structural steel adjacent to it? </p><p></p><p>Discuss???</p></blockquote><p></p>
[QUOTE="kme, post: 369213, member: 113"] Okay. Commercial premises being rewired from scratch. A series of 5 interconnected sheds. Existing was one DNO supply point, subbed to all 5 sheds - but we`re having our own TN-C-S installed. All OUR water is alcathene; however; the water service enters the first shed in copper, and runs all the way to the end shed - feeding everyone along the way. The pipe is installed at roof height - 6.5 metres - along the steel girder forming the front of the building. Our plumber has teed into the pipe, and brought out alcathene to all our services. We`re bonding the structural steel anyway - but I need to justify installing a 50mm ( or maybe 75mm) main bonding conductor across the whole length of the building - 50 metres. On the one hand - the water service is IN our building - but inaccessible ( effectively) ; but on the other, the client sees our water service as plastic. OR - would you deviate, and bond the copperwork to the structural steel adjacent to it? Discuss??? [/QUOTE]
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