Seaward 350 PrimeTest - Manual (Page 61)

PrimeTest 350 Operating Instructions
- 60 -
To start the IEC lead test, press the green START
button. The earth continuity resistance for the lead is
measured at ±200mA. The display indicates the
highest resistance and the pass/fail status. If this
resistance is less than the pass/fail limit, then the
insulation resistance will be measured.
During an insulation resistance
measurement, a high voltage is applied
between Live/Neutral and the common of the
IEC lead.
The insulation resistance of the lead is measured over
a period of 2 seconds. The display shows the final
reading and the pass/fail status. If the insulation
resistance is greater than the pass/fail limit, then the
lead polarity will be checked.
The lead “wiring” stage checks for short and open
circuit conditions on the live and neutral conductors.
The display shows the final result and the pass/fail
status.