Philips PageWriter TC70 - Safety Test S2 - Equipment Leakage; Safety Test S3 - Leads Leakage Current; CF

Performance Verification Tests Performance Verification and Safety Tests
PageWriter TC 70 Cardiograph Service Manual 4-13
Safety Test S2 - Equipment Leakage
 Applicable to Class 1 and 2, type B, BF, CF. For Class 1: Protective Earth conductor is not
connected. S = open. Measure equivalent leakage current to mains part from all Applied
Parts and enclosure in parallel. Measures grounded and ungrounded metal parts.
 Maximum leakage current = 1000 uA.
 Reference: VDE 0751.
Safety Test S3 - Leads Leakage Current
CF
 Applicable to Class 1 and 2, type CF.
 Measures equivalent leakage current to mains part and enclosure from all Applied Parts in
parallel.
 Maximum leakage current CF = 50/100 uA. Tested separately (50 uA) or together (100
uA).
Check each type CF Applied
Part separately with all patient
connections short-circuited
together.
Include all accessible conductive
parts of enclosure.