Amprobe DMIII-Multitest Power-Quality-Recorder Instrukcja Użytkownika Pobierz pdf (Strona 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).

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Amprobe DMIII-Multitest Power-Quality-Recorder Instrukcja Użytkownika Strona 87