Regulation stating a type AC RCD can not be upstream from a type A RCD

There’s much speculation on determining what RCD should be selected. The reality is it’s getting difficult to buy AC RCDs, all the standard RCDs and RCBOs in my local wholesale places are now A types. You can get a type B or F if you bring them a wheel barrow full of gold bars. 

I have recently been installing external lights at a domestic property. I found that the AC RCD did not trip when tested. I isolated all MCBs and it did. The culprit was the kitchen ring circuit, very posh digital appliances in that kitchen, including a very naughty fridge and washing machine. I whipped that RCD out and replaced it with exactly the same model which as standard from Hager is now an A type. No problems even with the naughty fridge connected, interestingly when I tested it on the A type setting on my fluke 1664FC I got the exact same results when testing it on the AC setting, so I’m not sure what the difference there is. It was a really nice fridge, it had a touch screen and you could order more milk and eggs right there on the fridge. It apparently can be set to automatically detect when your eggs or milk are running low and automatically add them to your online shopping list. We live in the future but for now I’ll keep going down the garden to collect my eggs in the traditional analogue way! I like frying an egg that’s still as warm as the chickens bum!

There’s much speculation on determining what RCD should be selected. The reality is it’s getting difficult to buy AC RCDs, all the standard RCDs and RCBOs in my local wholesale places are now A types. You can get a type B or F if you bring them a wheel barrow full of gold bars. 

I have recently been installing external lights at a domestic property. I found that the AC RCD did not trip when tested. I isolated all MCBs and it did. The culprit was the kitchen ring circuit, very posh digital appliances in that kitchen, including a very naughty fridge and washing machine. I whipped that RCD out and replaced it with exactly the same model which as standard from Hager is now an A type. No problems even with the naughty fridge connected, interestingly when I tested it on the A type setting on my fluke 1664FC I got the exact same results when testing it on the AC setting, so I’m not sure what the difference there is. It was a really nice fridge, it had a touch screen and you could order more milk and eggs right there on the fridge. It apparently can be set to automatically detect when your eggs or milk are running low and automatically add them to your online shopping list. We live in the future but for now I’ll keep going down the garden to collect my eggs in the traditional analogue way! I like frying an egg that’s still as warm as the chickens bum!