Things done by habit that you have to think about

[Scott Jacob]

Just sitting here and thought of this. New combi boilers. What size cable do you run for them? Been putting them on a thier own separate radial circuit for years but I automatically run 2.5mm but I guess a 1.5mm is fine these days as only a 3amp is needed on the old fuse spur. Anyone else install things out of habit that’s now over kill?

 

[Pete999]

Just sitting here and thought of this. New combi boilers. What size cable do you run for them? Been putting them on a thier own separate radial circuit for years but I automatically run 2.5mm but I guess a 1.5mm is fine these days as only a 3amp is needed on the old fuse spur. Anyone else install things out of habit that’s now over kill?

No not really

 

[ferg]

I'm the same as you. I wire the circuit in 2.5mm.

TBF I don't keep 1.5 on the van only 1mm, 2.5mm, 6mm and 10mm.

I have 4mm in the shed along with other rarely used cables.

 

[Scott Jacob]

Just habit I think. I still place consumer unite on wood places off the wall

 

[Pete999]

Just habit I think. I still place consumer unite on wood places off the wall

Do you not ever have to deviate due to reasons beyond your control?

 

[Scott Jacob]

I didn’t say I don’t correct them or deviate. It’s just a light hearted post. You just didn’t get it Pete

 

[Spoon]

I always go for Special Fried Rice, carton of curry sauce and a bag of prawn crackers from the Chinese... Does that count??

 

[Pete999]

I didn’t say I don’t correct them or deviate. It’s just a light hearted post. You just didn’t get it Pete

Think I did Scott

 

[Welchyboy1]

i suppose a 1mm on 6A mcb would also be ok if thats whats you chose to do

i still run a 2.5mm but do so to allow for a possible addition in future(may not be me, but another sparky perhaps)

 

[DefyG]

Yep, and not necessarily an overkill!

 

[Pete999]

I always go for Special Fried Rice, carton of curry sauce and a bag of prawn crackers from the Chinese... Does that count??

Nah Sweet and Sour chicken balls.

 

[telectrix]

SZECHUAN CHICKEN with extra hot chilli sauce and chips., washed down with Theakston's old peculier

 

[DPG]

Good call Tel.

 

[multimick]

not sure you can run 1mm for a non lighting circuit

 

[Spoon]

not sure you can run 1mm for a non lighting circuit

You are correct mate.
Min 1.5mm, Non-sheathed and sheathed cables for power circuits. Table 52.3.