Hi
I've got to replace an electric shower, which was probably installed around 12 years ago.
The shower that needs replacing was a Mira Sports 8.5kW which never tripped the MCB B32
If possible I'd like something around 9.8kW - but I want to confirm that the cable can handle it.
As I live a long way from places like B&Q I can't go there and confirm sizes in store.
The cable that is installed is chunky.
I've removed the consumer unit cover, and can confirm that the cable to the shower is the same size as the cable running to the electric cooker/oven.
MY QUESTION
Do you think I have 10mm cable installed?
These are the measurements (I've Googled for ages to determine how a cable is measured, but no joy).
The outer sheath of cable is between 14mm and 15mm across.
Each core (black and red) are between 4mm and 5mm in width.
Each black & red core is made up of '7' individual copper wires.
What do you think - have I got 6mm installed or 10mm
I need to know because if it's 10mm I can replace the MCB B32 for MCB B40.
However, I've read that you can run a 9.8kW rated shower on 6mm cable on MCB B32 - is this possible?
Many thanks in advance.
Stephen
I've got to replace an electric shower, which was probably installed around 12 years ago.
The shower that needs replacing was a Mira Sports 8.5kW which never tripped the MCB B32
If possible I'd like something around 9.8kW - but I want to confirm that the cable can handle it.
As I live a long way from places like B&Q I can't go there and confirm sizes in store.
The cable that is installed is chunky.
I've removed the consumer unit cover, and can confirm that the cable to the shower is the same size as the cable running to the electric cooker/oven.
MY QUESTION
Do you think I have 10mm cable installed?
These are the measurements (I've Googled for ages to determine how a cable is measured, but no joy).
The outer sheath of cable is between 14mm and 15mm across.
Each core (black and red) are between 4mm and 5mm in width.
Each black & red core is made up of '7' individual copper wires.
What do you think - have I got 6mm installed or 10mm
I need to know because if it's 10mm I can replace the MCB B32 for MCB B40.
However, I've read that you can run a 9.8kW rated shower on 6mm cable on MCB B32 - is this possible?
Many thanks in advance.
Stephen