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Student & Learning Zone - City & Guilds
How to become a trade electrician
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<blockquote data-quote="binky" data-source="post: 555033" data-attributes="member: 490"><p>solar, simple enough but dangerous to boot! For many years I avoided installing batterries - I did, and still do, regard those as a potential bomb in a domestic property, so I'm not keen on installing except in garages or other external building, possible a loft, but I have other reasons for avoiding that location.</p><p></p><p>Took me quite a while to get used to working with permanenty live DC, ie solar panels, but fortunetely the gear is well designed to minimise risk of sticking a finger where it doesn't belong. I did once pull a MC4 on an inverter without turning off the DC. The connector got a bit stuck which allowed a lovely 1" blue flame to propagate, being used to AC I was not concerned initially until I realised the flame wasn't going out. I still don't like fault finding solar, especially for DC leakage. With all the framework being metal, and the panels having metal frames, there's a high chance of 400+V to be present on the metal parts, and I've yet to see a reliable wy of protecting myself from this.</p></blockquote><p></p>
[QUOTE="binky, post: 555033, member: 490"] solar, simple enough but dangerous to boot! For many years I avoided installing batterries - I did, and still do, regard those as a potential bomb in a domestic property, so I'm not keen on installing except in garages or other external building, possible a loft, but I have other reasons for avoiding that location. Took me quite a while to get used to working with permanenty live DC, ie solar panels, but fortunetely the gear is well designed to minimise risk of sticking a finger where it doesn't belong. I did once pull a MC4 on an inverter without turning off the DC. The connector got a bit stuck which allowed a lovely 1" blue flame to propagate, being used to AC I was not concerned initially until I realised the flame wasn't going out. I still don't like fault finding solar, especially for DC leakage. With all the framework being metal, and the panels having metal frames, there's a high chance of 400+V to be present on the metal parts, and I've yet to see a reliable wy of protecting myself from this. [/QUOTE]
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