RCD Tripping instantly

[who took my fluke?]

will do so tomorrow and keep you all posted!!! thank you for your help

 

[CallEdsFirst]

I am so gonna do my acronym list!

CU Consumer Unit
CCU Cooker Control Unit

Everyone puts CCU for Consumer Unit for some unknown reason. Did anyone ever hear the distinction of Distribution Board being reserved for commercial/industrial use? I can understand DB more perhaps when people mean sub main board or even panel board ie it distributes whole sub main circuits rather than presenting them to the "consumer" be they deomestic or commercial consumers.

 

[Spark123]

//www.diynot.com/wiki/electrics:abbreviations

 

[Softus]

I am so gonna do my acronym list!

CU Consumer Unit
CCU Cooker Control Unit

Why is CCU not also Consumer Control Unit?

 

[CallEdsFirst]

Damn beaten to the jump!

Whoever heard of a Consumer Control Unit? Is that his wife? "She said we needed a new cooker, could you wire it up please?"

 

[RF Lighting]

AFAIK technically a consumer unit has a main switch, whereas a distribution board does not.

Oh all the abbreviations are here:

//www.diynot.com/wiki/electrics:abbreviations

 

[CallEdsFirst]

I like that distinction,sounds plausible, but all the items I would call DBs such as hagerss glass fronted jobbies and MEMss grey ones come with a selection of incomer options. Hell even a panel board will have a huge Air Circuit Breaker as an incomer.

 

[JohnD]

I thought the "Consumer Unit" was introduced for Domestic use and serves the whole installation for the house; the point is that it combines the Main Switch and the Fusebox that used to be separate components pre-war.

"Distribution Board" makes me think of a 3-phase thing (preferably in grey metal).