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Discuss Using 4.0mm T and E in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

I

ian hall

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If i have a large (or long) ring main to wire i sometimes use 4.0mm. Have one in a barn conversion to wire, only 5 sockets but total run will be around 60metres. What would use?

Ian
 
P

pushrod

  • Thread Starter Thread Starter
  • #2
If the total enclosed area is less than 100M2 and there is no excessive load then i believe you can use 2.5 T&E. Some one who knows better will be along shortly though.
 
M

m4tty

  • Thread Starter Thread Starter
  • #3
agree with pushrod. i think 2.5mm would be fine as long as floor area doesnt exceed 100 square metres if served by 30/32A.
 
S

Spudnik

  • Thread Starter Thread Starter
  • #4
You must also take into account the route of the cable.

More than likely lots of derating needed due to insulation etc so, personally i would choose 4mm.

Although its bigger, its actually easier to use as its stranded and not solid core.
 

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