|
All the information you require to know
about what, how and when to test is available in the Standard AS/NZS3760:2003 to buy a copy please phone Standards New
Zealand on:
0800-735-656 or
Standards Australia
on
www.standards.com.au.
Tel: 1300 65 4646.
In the new version of AS/NZS2003 the
environment for frequency of inspection and testing has been revised to be more
usage based, rather than specific site based;
See
Table 4 AS/NZS3760:
2003 for the required frequency of testing.
The tests that need to be carried out on equipment briefly are:
|
1.
VISUAL TEST
- this is very important as approximately 90%
of faults can be found by this
alone.
|
|
2. Class I -
Earthed Equipment |
|
|
a)
Earth Continuity Test
- this may be done with an ohm meter or a Portable Appliance Tester (PAT).
The draft Standard AS/NZS3760: 2003 suggests a test current for PATs of
100mA to 25Amps.
b)
Insulation
Test-Leakage Test
- a leakage test shall be done on appliances that have
internal switching that is only activated when the equipment under test is
powered at operating voltage. For equipment that does not have
internal switching as above then a 500 Volt insulation test is an acceptable
alternative.
|
|
3.
Class II - Double Insulated Equipment |
|
|
Insulation Test-Leakage Test
-
a leakage test shall be done on appliances that have internal switching that
is only activated when the equipment under test is powered at operating
voltage. For equipment that does not have internal switching as above
then a 500 Volt insulation test is an acceptable alternative.
|
|
4.
Cord Extension
Sets |
|
|
Earth Continuity Test
Insulation Test-Leakage Test
These shall in addition to the above have
a
polarity check carried out on them if they have
re-wireable plugs fitted.
|
|
5. RCDs |
|
|
Earth Continuity Test
Insulation Test-Leakage Test
In addition
to the above tests RCDs shall have a
trip time test performed on them at the
time period specified in Table 4
AS/NZS3760: 2003. |
| 
