Rigel SafeTest 60 Instruction Manual
–
Revision 1.2
21
8 Minimise your power breaks in IEC 60601
Certain medical equipment can be sensitive to sudden power breaks or have a
long power-up cycle. To protect your equipment or to reduce the overall test
time, we suggest you run the SafeTest 60 in the following sequence;
To minimise the power breaks to the EUT, all leakage measurements should be
grouped by Single Fault Condition (SFC).
As such, all leakage measurements are carried out for a specific SFC, leakage
measurements are then repeated for the next SFC. This is to minimise the
power breaks and power ups.
NORMAL POLARITY TESTING
– POWER UP
1. EARTH LEAKAGE Normal Supply
2. ENCLOSURE LEAKAGE Normal Supply, Earth Closed
3. ENCLOSURE LEAKAGE Normal Supply, Earth OPEN
NORMAL POLARITY TESTING
– POWER DOWN
4. ENCLOSURE LEAKAGE Normal Supply, NEUTRAL OPEN
5. EARTH LEAKAGE Normal Supply, NEUTRAL OPEN
REVERSED POLARITY TESTING
– POWER UP
6. EARTH LEAKAGE Reversed Supply
7. ENCLOSURE LEAKAGE Reversed Supply, Earth Closed
8. ENCLOSURE LEAKAGE Reversed Supply, Earth OPEN
REVERSED POLARITY TESTING
– POWER DOWN
9. ENCLOSURE LEAKAGE Reversed Supply, NEUTRAL OPEN
10. EARTH LEAKAGE Reversed Supply, NEUTRAL OPEN
Below is a graph highlighting the Grouping of Single Fault Conditions
(
booox
)
and the delays which are manually controlled by the User (ta, tb, tc & td) and the
time in which the safety analyser performs the automatic test routines.
