METREL EasiTEST MI 2087 AL2 - Fault Loop Resistance and Prospective Short-Circuit Current

MI 2087 AL2 EasiTEST Measurement instructions
29
3.7 Fault loop resistance and prospective short-circuit
current
For general information concerning the measurement, refer to enclosed handbook
Measurements on electric installations in theory and practice.
How to carry out the measurement
Step 1
q Connect test cable (Universal test cable) to EasiTest.
q Set function switch to LOOP L-E, PSC position, L–PE voltage measurement
will start to run; see the figure below (left side):
Fig. 23: L-PE voltage and frequency measurement
q Check frequency of mains voltage by pressing the DISPLAY key; see the
figure above (right side).
Step 2
q Connect the test cable to tested object (mains outlet or other test terminals),
according to the figure below.
Fig. 24: Connection of universal test cable (phase the neutral measurement)
Mains
voltage not
connected!