Philips 862478, 862474 manual On the Applied, Safety Test Diagram Patient Leakage Current AC

Patient Safety Tests

Patient This test measures patient leakage current in accordance with EN60601-1, Clause 19, for Leakage Class I, type CF equipment. In this test, 110% of mains voltage is applied between each

Current, with patient connection and earth (power ground). Patient leakage current is then measured from Mains Voltage any individual patient connection to earth.

on the Applied

Part Warning

AC mains voltage is present on the applied part terminals during this test. Exercise caution to avoid electrical shock hazard.

Table 4-7. Safety Tests - Patient Leakage Current, with Mains Voltage on the

Applied Part

Test or “Inspection” to Perform	Expected Test Results
Patient Leakage Current - AC	Maximum leakage current = x
See “Safety Test Diagram - Patient	<= 50 ∝A @ 250V (IEC601-1 or UL2601-1)
Leakage Current - AC” on page 4-44
	Test at 110% of the nominal line voltage.

Figure 4-2 Safety Test Diagram - Patient Leakage Current - AC

Test or Inspection to Perform

Measures patient leakage current from Applied Part to earth caused by external mains voltage on Applied Part with switch S5 open and closed. Each polarity combination possible is tested using S2 and S6.

Safety test according to EN60601-1 (Clause 19.4.h). Report largest value.

What to record on the service record:

S(5): P or S(5): F

4-44Testing the Monitor