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Cu change before pv install.

hertzal123
Customer wants to install pv panels after the new cu has been fitted and I just wondered what devices to fit for it.Think the PV is 4kw,so I thought maybe a B20 mcb and a DC sensitive rcd?Thanks for any advice.

                                                Regards, hz
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    20A MCB B type(3 - 5 In) is appropriate. Surge arrestor is recommended as panels and array generally installed on roof. You should check the shielding from surround buildings. You know, one panel is being shadowed, overall performance within one array will draft down. You can think about oversizing panel
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    20A MCB B type(3 - 5 In) is appropriate. Surge arrestor is recommended as panels and array generally installed on roof. You should check the shielding from surround buildings. You know, one panel is being shadowed, overall performance within one array will draft down. You can think about oversizing panel
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