Discuss Sensor to detect when a light is turned on in the UK Electrical Forum area at ElectriciansForums.net
You must account for such events as transit arcs, inverted phase and contact welds, so you need to know how the regs and design practice inform the choice of relay / contactor. FWIW there can be up to 650V across the contacts.They will be separated within the relay
Have you considered the different grounding arrangements in different inverters - C/T vs. IT vs. earthed neutral, whether the DC input is electrically separate from the output, and how these will affect the functioning or not of the downstream RCD? Otherwise the RCD might appear to be offering protection when it actually is not, and will not trip in the event of a line-earth shock; even the possibility of getting a mains voltage shock off the ELV DC side.and the supply from the inverter will go through an RCD
Are they any better than Heinz beans?
I was looking at this inverter https://www.amazon.co.uk/Phoenix-In...coding=UTF8&psc=1&refRID=15DVA1318QJJZW1TDMH2
There is an earth connection on the case itself. I can connect this to the main earth line for the property, or if it would be better drive an earth stake into the ground just for this system.
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