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Electrician Talk Forum
Chewing The Fat..... "Volt-Drop"...
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<blockquote data-quote="binky" data-source="post: 558347" data-attributes="member: 490"><p>You forgot one, solar 1%, volt drop.</p><p></p><p>I never understood why lights should be different to power, but I would assume all this is about energy efficiency reducing demand for power generation or prevention of cables overheating. I did once calculate the cable heating effect in a long sub main to a stable block the customer wanted solar panels on. To replace the cable with something larger would have involved digging a 100m trench and £3k in cable to meet the 1%. Customer wasn't happy about that, so I calculated that the energy loss would be around 80watts max. In other words quite neglible.</p></blockquote><p></p>
[QUOTE="binky, post: 558347, member: 490"] You forgot one, solar 1%, volt drop. I never understood why lights should be different to power, but I would assume all this is about energy efficiency reducing demand for power generation or prevention of cables overheating. I did once calculate the cable heating effect in a long sub main to a stable block the customer wanted solar panels on. To replace the cable with something larger would have involved digging a 100m trench and £3k in cable to meet the 1%. Customer wasn't happy about that, so I calculated that the energy loss would be around 80watts max. In other words quite neglible. [/QUOTE]
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Chewing The Fat..... "Volt-Drop"...
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