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<blockquote data-quote="SPECIAL LOCATION" data-source="post: 503608" data-attributes="member: 250"><p>Most capping is designed so that it can be nailed to a wall...</p><p></p><p>Therefore it cannot be considered as mechanical protection for buried cables...</p><p></p><p>As bullet point (iv) of 522.6.204 specifically states mechanical protection will prevent penetration by nails / screws etc..</p><p></p><p>You can use an 'earthed metallic covering' to protect buried cables..</p><p></p><p>But capping's main function was to protect a cable from the plasterers trowels etc.. </p><p></p><p>From the days of wet-plastering, when putting on the first bonding coat.</p><p></p><p>hence why plastic capping was an acceptable cheaper alternative to metal..</p><p></p><p>With so much dry-line boarding done nowadays..</p><p></p><p>many don't bother with any form of capping at all over the cables to be hidden behind the boards. </p><p></p><p>bottom line is.. if you can hammer a nail through it..</p><p></p><p>It is NOT mechanical protection!</p><p></p><p> Guinness </p></blockquote><p></p>
[QUOTE="SPECIAL LOCATION, post: 503608, member: 250"] Most capping is designed so that it can be nailed to a wall... Therefore it cannot be considered as mechanical protection for buried cables... As bullet point (iv) of 522.6.204 specifically states mechanical protection will prevent penetration by nails / screws etc.. You can use an 'earthed metallic covering' to protect buried cables.. But capping's main function was to protect a cable from the plasterers trowels etc.. From the days of wet-plastering, when putting on the first bonding coat. hence why plastic capping was an acceptable cheaper alternative to metal.. With so much dry-line boarding done nowadays.. many don't bother with any form of capping at all over the cables to be hidden behind the boards. bottom line is.. if you can hammer a nail through it.. It is NOT mechanical protection! Guinness [/QUOTE]
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