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Swa Csa
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<blockquote data-quote="apprentice87" data-source="post: 392940" data-attributes="member: 13534"><p>Yes.... and no!!!!</p><p></p><p>First off, yes you understand exactly what i meant and why you would need to bother with such things when you say;</p><p></p><p>"Also if the cable were to supply an external building exporting PME, then would the SWA would be suitable as its greater than 16mm......but then i guess this is where the copper equivalent would have to be calculated, right?"</p><p></p><p>BUT, in the scenario you describe, the CSA required for the bonding conductor cannot always just be taken as "16mm"</p><p></p><p>You see, the CSA required would be related to the size of the NEUTRAL conductor in the service cable to the ORIGINAL installation. So if the main building had a wacking great big supply, you might well have to run one very big bonding conductor to the second building, REGARDLESS of how small the CSA of the submain was..</p><p></p><p>The link i gave in post 8 gives you the chart you need which is where i got the info from!!</p><p></p><p>john</p></blockquote><p></p>
[QUOTE="apprentice87, post: 392940, member: 13534"] Yes.... and no!!!! First off, yes you understand exactly what i meant and why you would need to bother with such things when you say; "Also if the cable were to supply an external building exporting PME, then would the SWA would be suitable as its greater than 16mm......but then i guess this is where the copper equivalent would have to be calculated, right?" BUT, in the scenario you describe, the CSA required for the bonding conductor cannot always just be taken as "16mm" You see, the CSA required would be related to the size of the NEUTRAL conductor in the service cable to the ORIGINAL installation. So if the main building had a wacking great big supply, you might well have to run one very big bonding conductor to the second building, REGARDLESS of how small the CSA of the submain was.. The link i gave in post 8 gives you the chart you need which is where i got the info from!! john [/QUOTE]
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