Mindray uMEC12 - Protective Earth Resistance; Earth Leakage Test

E-3
E.4 Protective Earth Resistance
1. Plug the probes of the analyzer into the device’s protective earth terminal and protective
earth terminal of the AC power cord.
2. Test the earth resistance with a current of 25 A.
3. Verify the resistance is less than limits.
LIMITS
For all countries, R = 0.2  Maximum
E.5 Earth Leakage Test
Run an Earth Leakage test on the device being tested before performing any other leakage
tests.
The following outlet conditions apply when performing the Earth Leakage test:
 normal polarity (Normal Condition)
 reverse polarity (Normal Condition)
 normal polarity with open neutral (Single Fault Condition)
 reverse polarity with open neutral (Single Fault Condition)
LIMITS
For UL60601-1,
 300 A in Normal Condition
 1000 A in Single Fault Condition
For IEC60601-1,
 500 A in Normal Condition
 1000 A in Single Fault Condition