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GW Instek GLC-9000 User Manual User Manual

Page 25

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OVERVIEW

25

Leakage current can be dangerous and produce
shocks over a certain limit.

Enclosure and
Earth leakage
current

Enclosure and Earth

Leakage Current

EUT

Description

During normal conditions, an operator or a patient
is expected to touch the enclosure of an instrument
(except for applied parts). The enclosure and earth
leakage current test measures the leakage current
that flows through a human body to earth when in
contact with the instrument enclosure.
For class II equipment, enclosures are ungrounded,
and must be tested for leakage current that flows
through a human body impedance network to
earth. This test also applies to Class I equipment
where the enclosure is not grounded.