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Student & Learning Zone - City & Guilds
"Consecutive" Voltage Drops
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<blockquote data-quote="Andy™" data-source="post: 489183" data-attributes="member: 2012"><p>your 3&amp;5% is within your installation regardless of supply. supply should be 230 + or - is in reality you could have an installation with a 2% drop with a supply of 216 so actual voltage 212ish and comply but an install with a 253v supply be 6% volt drop that doesnt comply</p><p></p><p>volt drop would be calculated from origin of supply to the installation. however there is nothing in BS7671 to say you can have more than 1 instllation so you could claim the origin is a remote building if you then extend from there. as usual, clear as ever</p></blockquote><p></p>
[QUOTE="Andy™, post: 489183, member: 2012"] your 3&5% is within your installation regardless of supply. supply should be 230 + or - is in reality you could have an installation with a 2% drop with a supply of 216 so actual voltage 212ish and comply but an install with a 253v supply be 6% volt drop that doesnt comply volt drop would be calculated from origin of supply to the installation. however there is nothing in BS7671 to say you can have more than 1 instllation so you could claim the origin is a remote building if you then extend from there. as usual, clear as ever [/QUOTE]
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"Consecutive" Voltage Drops
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