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Neutral and earth connections are not tested. The tests will
Note:
not simulate your normal usage load.
Note 1: If none of the LED's illuminate, this does not necessarily
mean all three phases under test are dead. Two phases
could be open circuit, but one phase could still be live.
Note 2: The colours of the cables under test cannot be relied upon
to conform to the expected phases.
Note 3: This instrument only confirms the presence of live phases
and the phase sequence in the location being tested. E.g.
A phase marked as "L1" elsewhere in the fixed installation
may not be the same phase as one marked as "L1" in the
location being tested. That must be verified by separate
tests to confirm absence of phase offset.
3.5 Wiring Colour Coding
In April 2004 the colour coding of UK wiring was harmonised with
the IEC wiring colour code. Table 2 shows the old UK colour code
and the new IEC colour code.
Earth
Green /
Old UK
Yellow
Colours
Green /
New IEC
Yellow
Colours
Neutral
Line 1
Black
Red
Blue
Brown
Line 2
Line 3
Yellow
Blue
Black
Grey
8
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