21
TnP Prime
User Manual
Wavecom
Leakage / Run Test – Menu B – F2
Note: Leakage Tests can only be conducted when connected to mains power.
The Leakage Test is an alternate method to perform insulation resistance tests. Leakage testing is a major
function of the TnP Prime. There are three types of Leakage test available on the TnP Prime - take care to
ensure you use the correct test for your appliance.
This test determines errors of leakage not otherwise detected in a normal insulation test. If there are any
doubts with insulation testing of the equipment, the Standard (AS/NZS:3760) allows for a leakage test to be
carried out instead. The TnP Prime has been designed to perform these tests. The Leakage Test applies power
to the Device Under Test (DUT) and measures any imbalance or leakage current. The leakage is tested to the
limits of the class types specified in the Standard AS/NZS 3760 i.e. Class 1 = > 5mA as Fail.
The limit of imbalance measured on the TnP Prime will read well in excess of the limits set in mA. However,
should the supply circuit be protected by an RCD this device will trip anywhere between 10 to 30mA and trip
the mains supply switch OFF. The Leakage Test allows the user to operate the appliance in normal operation
conditions and measure its Operating Leakage current. The displayed parameter is mA. The mA Display Range
0.0 to 22.0 mA.
A predefined value for individual class types is programmed into your TnP Prime. These limits are set according
to the AS/NZ3760. Should these values change in future it can be simply altered in firmware. The run time
period can be adjusted (by 5 second increments). The value can be changed by selecting the leakage test time
in the options menu. See the special functions section of the manual for more details. The factory default
setting is 20sec. The value for the leakage runtime is also used for the power test.
Caution
: Before operating ensure the equipment is firmly secured to eliminate the possibility of causing injury
or damage. This function will power the appliance on, and in the case of appliance with movable parts these
parts may begin to move. Ensure the appliance can power on safely before proceeding.
Procedure:
1. Complete a Visual Inspection. For details refer to the First Test section. If the device passed the Visual
Inspection, continue with the following instructions, if not, refer to the First Test section
2. Ensure that the appliance is safely located and secure as it will be powered and operational during this
test.
3. Plug the appliance into the Appliance Test Socket of the TnP Prime
4. If testing a Class 1 Appliance, plug the IEC Clamp Cable into the IEC socket of the TnP Prime, then clamp it
onto earthed metal on the appliance
5. If testing an RCD, plug the IEC-550 Orange Cable into the IEC socket of the TnP Prime, then plug it into a
socket on your RCD and turn that switch on
6. Navigate to Main Menu B, then press F2 to enter the Leakage Test Menu
7. Press a function key to start the test
F1 = Earth Leakage, limit set to MAX then 5mA fail
F2 = Double Insulated Leakage and Extension Leads, limit set to MAX then 5mA fail
F3 = RCD Leakage (not a full RCD Trip Time or Ramp Test)
8. The TnP Prime will conduct the first part of the test without powering the appliance
9. A warning will be displayed on screen - ensure the appliance is safely located, then press F3 to power the
appliance and continue the leakage test
10. Your results will appear on the screen - you can now print the tag and unplug the appliance
If the result was a
PASS
- Tag with the appropriate tag including “next test due” date and “return to service”
If the result was a
FAIL
- Tag with a DANGER TAG and remove from service.
