meter tails question

message from Richard on 25 May 2004
I wish to run my 240v domestic meter tails on a route of 7m through a cavity
wall, can I run 25mm standard meter tails or do the regulations require
other measures over that distance?
 
Bob Mannix replied to Richard on 25 May 2004
You will almost certainly find the electricity supplier will only allow
about 3m of tails. To get over this problem, you need to install a sub-main.
The meter tails run to an overload protection device (100mA for 25mm^2
submain) and the submain to the CU. The submain is then protected by *your*
overload device not *theirs* (which is all they care about).

Depending on the supplier, you may be able to install the submain protection
device in the meter box but I'm not sure on that point (mine is in a box on
the dining room wall and I have 7m of submain).
 

Archived message: meter tails question (UK DIY Home Decoration)
 
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