RCD Types, Ticking time bomb

[John-]

Juts been catching up on some prep work for my EV install course next week (Tring, 8th December) anyone on hear doing it?

I digress. Delving deeper into RCD types. Hell of a mine filed now! I am guessing most homes installed or upgraded with RCDs, RCBOs with type AC need now to be replaced for lighting circuits and Kitchen socket outlets?

Great thread hear form a while back i see:-

(11) RCD types and DC current | ElectriciansForums.net

I don't see anything in the latest proposed amendment, nor from the IET about the importance of selecting the correct type, or the growing risk in peoples homes as more kit that could saturate the coils gets used. Makes sense to me to make them mandatory or at least the checking of the connected devices and type for 'at risk' circuits in the kitchen and lighting.

Looking at my Sentry board with all RCBOs, they are all type AC. I have LED lights, washing machine and an induction hob... Doesn't look like i can get type A RCBOs for MK anyway. So a massive upgrade cost :-(

My washing machine is old, so unlikely to be an issue - but the rest could quit easily be compromising my RCD as i speak. I guess some testing with the circuits at various loads could tell me if i have an issue now.

Anyone do any of this testing as art of their inspections?

Cheers

John

 

[AJshep]

I agree, I don't think there will ever be an effective way of testing these devices either, We just have to rely on the microprocessor and a flashing LED.

I got it wrong earlier they can be used in Commercial, but the pollution degree is only 2 so consideration is needed.