GOAL: check the insulation and materials quality

PRINCIPLE: Apply during a defined time a stable continuous voltage, measure the resulting current in between the two parts under test and check with the Ohmic law that the insulation resistance is higher than the minimum value required by the standard. Generally phase and neutral are shunted and the test is made between those 2 shunted points against the ground point. The DUT is not connected to mains !

TEST CONDITIONS (according to the main standards):

♦ Voltage        500 V   DC

♦ Time             1 min

♦ Resistance   > 1 Mohm to 10 Mohm

Dwell up time: 0-999.9s

Measurement Speed: 3 meas /sec

Insulation Resistance Basic Accuracy: ±5%

Standards:

EN60065: Voltage :500V DC   Threshold: depending on the DUT, 2M, 4M...  Time: 1min

EN60204-1: Voltage :500V DC   Threshold: 1M   Time: no defined

EN60335-1: Voltage :500V DC   Threshold: depending on the DUT, 2M, 7M...  Time: 1min

EN60598-1: Voltage :500V DC    Threshold: 2M   Time:1min

EN60950: Voltage :500V DC         Threshold: 2M   Time: no defined

No insulation on the standard of EN60601-1, EN61010-1 and EN61131-2

Technical Parameters