S
UPPLEMENT
TO
H
ANDBOOKS
S
PECIFICATION
C
HANGES
In accordance with the Requirements for Electrical Installations BS
7671:2001 Amendment No 2 (the IEE wiring regulations), wiring colour
coding has been amended to Brown (L) and Blue (N) for single phase
power circuits and Brown (L1) Black (L2) and Grey (L3) and Blue (N)
in
three phase power circuits
from 1 June 2006.
Full details of the changes can be found in Amendment No 2 (AMD 14905)
to BS 7671:2001 - which is a free download from the IEE website
(www.iee.org/cablecolours). They are also within the new version of
BS7671:2001 (Incorporating Amds 1& 2) published on 31
st
March; this
new version of the Wiring Regulations can be identified by its brown cover.
Supplement Wiring.PMD
Revision 120606A
N
EW
W
IRING
C
OLOURS
