1.6 Types of Leakage Current Measurement
18
Additions to IEC 60601-1:2005 3rd Edition
Patient leakage current is current that takes the following route: "metal accessible part not protectively
earthed
applied part human body Earth." Use this standard to measure medical equipment with
patient connection of applied parts that are not protectively earthed (B-type or BF-type) and with metal
accessible parts that are not protectively earthed.
Instead of connecting damaged medical equipment to generate a single-fault condition, input a voltage
that is 110% of the rated voltage to metal accessible parts not protectively earthed. (Use the T3 terminal
on the instrument)
This test is not required for CF-type applied parts.
Patient leakage current measurement
(external voltage on metal accessible part not protectively earthed)
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