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Green Renewable Energy Forum
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The somewhat complex issues of array frame bonding - thoughts and ideas welcomed
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<blockquote data-quote="kme" data-source="post: 247747" data-attributes="member: 113"><p>Aye mate - in the first instance, they`re referencing some part of the DC circuit to earth; which we aren`t supposed to do, apparently!!!!!</p><p></p><p>The second is more interesting; and adds to a piece I saw yesterday, which suggests the HF switching in the inverter, combined with the capacitive effects of the DC cabling, can, "over time", set up a harmonic in the array frame ( at which point I gave up, `cos me head hurt!, and they didn`t go too deep into the theory).</p><p></p><p>I`m more into canoeys idea - trying to avoid it completely, if at all possible.</p><p></p><p>n.b. I`ve also seen suggestions that cement corrugated roofs aren`t suitable for PV, due to high expansion / contraction coefficients.........Just as a side-note.</p></blockquote><p></p>
[QUOTE="kme, post: 247747, member: 113"] Aye mate - in the first instance, they`re referencing some part of the DC circuit to earth; which we aren`t supposed to do, apparently!!!!! The second is more interesting; and adds to a piece I saw yesterday, which suggests the HF switching in the inverter, combined with the capacitive effects of the DC cabling, can, "over time", set up a harmonic in the array frame ( at which point I gave up, `cos me head hurt!, and they didn`t go too deep into the theory). I`m more into canoeys idea - trying to avoid it completely, if at all possible. n.b. I`ve also seen suggestions that cement corrugated roofs aren`t suitable for PV, due to high expansion / contraction coefficients.........Just as a side-note. [/QUOTE]
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The somewhat complex issues of array frame bonding - thoughts and ideas welcomed
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