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Octopus
Just the circuit to the inverter. Which is on its own 2 way consumer unit.
And then SWA cable - so no rcd required imho
Discuss Fitting a 100ma RCD on Solar PV to solve nuisance tripping. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
Just the circuit to the inverter. Which is on its own 2 way consumer unit.
Been there, done that.Re# 26 - see #22
The reference you have provided indicates that where required, B type RCDs should be used. i.e. circuits of locations containing baths or showers, socket-outlets or cables concealed in walls.Answer yourself - I will be interested to read your reasoning.
I have provided a reference which explains why it is right an RCD type B is intalled because there is no dc - ac side galvanic isolation. It may well be the manufacturer of the in-use Sunny Boy inverter says one is not required - one for the OP to clarify - though for me the presence of the type B RCD indicates that the installer has read and abided by the manufacturer's instructions.
Yep, as I said.At page 12/20 para (iv) of:
https://www.electricalsafetyfirst.org.uk/mediafile/100117576/Best-Practice-Guide-3.pdf
(iv) Where a microgenerator having a d.c. source does not incorporate the equivalent of a transformer providing at least simple separation between the d.c. and a.c. sides, an RCD installed for fault protection by automatic disconnection of supply or for additional protection (I∆n <_ 30 mA) must be of a type that will operate as intended in the presence of d.c. components in the residual current. (This does not apply where it has been established – such as from a specific written statement given by the inverter manufacturer – that the inverter provides galvanic isolation between the d.c. and a.c. sides that prevents it from feeding d.c. current into the electrical installation.) Note. A Type AC RCD will not fulfil the above requirement. Depending on the level and form of d.c. components, an RCD (where required) will need to be of Type A to BS EN 61008 or BS EN 61009, Type B to IEC 62423, or Type F to IEC 62423. However, in the case of a PV power supply installation, Regulation 712.411.3.2.1.2 of BS 7671 stipulates that the RCD (where required) shall be of Type B.
Because.Why is it not needed please?
I’ve asked you why the RCD can’t be removed.Please provide an argument with reasons using your knowledge of electrical engineering, the wiring regulations, awareness of the law for the safe use of electricity and appreciation of the installation in question.
Reply to Fitting a 100ma RCD on Solar PV to solve nuisance tripping. in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net
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