Operator Manual
Issue 1
TIL – Eng – Spec – 080
Page 62 of 70
SeaHub
7.10. Portable Appliance Testing Guidelines
As part of the compliance with EEC Low Voltage Directive (73/23/EEC with amendment 93/68/EEC), the
SeaHub unit is fully portable-appliance-tested at the factory. Should the test need to be re-performed, it is
recommended the following guidelines are adhered to…
CAUTION!
Read the user manual for the PAT tester and the current IEE code of practice before
carrying out this procedure
Adhere to any safety statements given by the specific PAT tester used!
NOTE
The SeaHub unit should be portable appliance testing in accordance with the IEE
code of practice for a “Class-I IT appliance”.
•
Earth Bond Test
Use a current of 10A at 6VAC
RMS
passed down the Earth of the mains
power cord for 5 seconds, and check that conduction occurs through the
exposed metal work on the housing connectors. For appliances with a
power cord, this should not exceed 0.2
Ω
.
With the power cord connected, this should typically be around 0.15
Ω
.
•
Insulation
Test
500VDC should be applied between the Earth pin and the Live and
Neutral of the unit and the resistance is measured and shown to be in
excess of 7M
Ω
.
With the power cord connected, this should typically be in excess of
300M
Ω
.
•
Flash
Test
(Electrical Strength
Test)
With the Live and Neutral wires connected together, 1500VAC
RMS
should
be applied to the Earth and the induced current measured and checked
not to exceed 3.0mA.
With the power cord connected, this should typically be less than 2.0mA.
•
Load Test &
Leakage Current
Test
The SeaHub should be tested from a 240V supply, and the front-panel
LED’s will flash during the test to show correct operation. A warning may
be generated stating that there is not sufficient load for the test. The load
should be no greater than 0.5KW and the leakage current should be less
than 0.75mA.
Typically the Load test should read around 0.05KVA, and the leakage will
be 0.2mA.
