current is less than the factory set limit a tick is
placed next to the I
LEAK
enunciator.
• The PASS enunciator is illuminated.
3.4 Testing a mains cord
• Visually inspect the mains cord and plug for
signs of damage.
• Check that the correct fuse is fitted.
• If the cord passes a visual inspection proceed
with the electrical tests.
• Plug the mains cord under test into the IEC
socket and the front panel mains socket on
the PrimeTest 100.
• Press the cords test key
• The PrimeTest 100 will first test the continuity of
the protective earth.
• If the measured value is greater than the factory
set limit a cross is placed next to the R
PE
enunciator, a FAIL is indicated.
Note: The protective earth resistance will depend
upon the length of the extension lead and the
size (cross sectional area) of the cable. The
measured value may be acceptable even if a
cross is shown next to the R
PE
enunciator. For
reference, typical resistance values for a variety
of cable lengths and cross-sectional area are
given in Table 1.
• If the measured value is less than the factory set
limit a tick is placed next the R
PE
enunciator.
• The unit will proceed with the Insulation test.
• If the Insulation Resistance is lower than the
factory set limit a cross is placed next
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