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Integrated Tests
Information
SUPPLY MAINS TEST
A-N, A-E
If the N-E (red) light is on and you need to conduct load/leakage tests
DO NOT CONTINUE.
If you are carrying out standard Insulation and
Earth Bond tests, it is generally safe to continue.
This light will glow if a voltage difference lies between the neutral and
the earth, or if no earth is connected to the TnT-el supply. (If working
with a generator or inverter, this is most likely to occur and you may
need to consult an electrician before proceeding).
If both the A-E & A-N (green) lights are on but not the N-E (red);
Mains Supply is OK.
Continue to Test.
If both of the N-E (red) & A-E (green) lights are on,
Consult an Electrician,
as there is a fault with the Mains Supply.
N - E
A - E
A - N
A - E
N - E
A - N
The Supply Mains TEST checks the Polarity & Connectivity of the mains
supply by LED’s (see below). This test is also a part of all of the testing
functions of this unit.
Summary of Contents for TNT+
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