Amprobe DMIII-Multitest Power-Quality-Recorder - Manual (Page 87)

AMPROBE
DMIII MULTITEST
EN-85
ALLOWABLE VALUES
The test result is positive when the insulation resistance indicates values higher or
equal to those indicated in the table reported in the section relative to insulation tests.
Notes:

SELV system: is a system of category zero or very low safety voltage featured by:
 Power supply: autonomous source (ex. batteries, small generator) or safety (ex.
safety transformer).
 Protection separation to other electrical systems (double or reinforced insulation or
a metal screen connected to the ground).
 There are no earthed points (insulated from the ground).

PELV system: is a system of category zero or very low safety voltage featured by:
 Power supply: autonomous source (ex. batteries, small generator) or safety (ex.
safety transformer).
 Protection separation to other electrical systems (double or reinforced insulation or
a metal screen connected to the ground).
 There are earthed points (not insulated from the ground).

Electrical separation: is a system featured by:
 Power supply: insulation transformer or autonomous source with equivalent
features (ex. generator).
 Protection separation to other electrical systems (insulation not lower than that of
the insulation transformer).
 Protection separation to the ground (insulation not lower than that of the insulation
transformer).