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Even Branston Pickle is owned by a Chinese company now!!

Those ferrite toroids will need to be pretty beefy to avoid magnetic saturation from the DC flowing from the panels (10's of amps)and even more beefy for the battery leads handling several time the panel current. Once saturated their performance at RF will be greatly reduced. The sort of...

Use your plcc to open the ac , then switch the dc and finally reconnect the ac with say a 1 second delay between each step.

I used to have virgin(ntlworld) email and after a patch of loss of emails moved over all my accounts to gmail both personal and business. Its been fine ever since.

Could possibly compromise the earth bonding

Virtually every device you list is a non resistive load and so ohms law calculations cannot be used to work out the power consumed. The power factor has to be born in mind.

Should that be “yes its perfectly acceptable to add a new circuit”? Yes ive seen comments about no SPD fitted elsewhere but only as suggestions? Why would RCD need changing? In favour of 10mA one perhaps?

I want to upgrade my bathroom in my 2000 ish built flat. I want to fit a new electric shower. It has not had one before so will need a new feed from the CU My current CU is plastic and to date has passed EICR tests. There is room for an extra mcb. Is it mandatory to change to a metal CU or just...

Properties down stream of a broken neutral will experience all manner of voltages with respect to their live phase depending on the loads between the floating neutral and the other phases imposed by subsequent properties down the line up to and including full phase to phase voltage in extreme...

I wonder if an overvoltage relay could be configured to simulate an earth leakage and trip the rcd to avoid the need for an inline contactor? Bob

A friend has just contacted me say that he woke to find his domestic circuits were "dead". Once reset, one appliance was showing an overvoltage indication and several white goods and hifi were damaged/non functional. He measured 378 volts live to neutral. Turned out that that there was a break...

Thanks john. A lot to take in there. Will be reading later.

Thanks very much Oldman22. your reply is a great help. Have you tried your system in isolation ie to simulate a power cut. IF so did the Solis inverter keep the basic PV inverter from switching off and thus keep the panels producing power?

I'm a retired electrical engineer who hopefully has not lost all his marbles! I have a mature Grid Tied Solar PV system all MCS approved and collecting FIT. I want to explore the pros and cons of adding AC coupled battery storage. I don't want to lose my MCS/FIT contract I don't want battery...