Hipot Testing Operator Checklist

Only properly trained operators should be allowed use the equipment and access the test area.

Do not make any connections to a DUT unless you have verifed that the high voltage warning light is OFF.

Never touch a DUT, the hipot tester or the test leads.

When connecting leads to the DUT, always connect the ground clip frst.

Never touch the metal of a high voltage probe or HV test lead directly.

Hipot tester

Only touch the insulated parts and only when no high voltage is present.

When possible, use interlocked test fxtures only.

Verify all DUT connections before starting a test. Make sure that no other objects are near the DUT or the tester.

Keep the area neat and uncuttered and avoid crossing test leads.

Suspend the test leads to minimize capacitive coupling.

Follow the prescribed procedure for each test exactly as witten.

Verify all setup conditions before starting a test and examine all leads for signs of wear.

Verify the tester is functioning properly by use of a performance verifcation device. This will also confirm the condition of the test leads. Keep the equipment on a regular calibration cycle.

Have a “hot stick” handy when performing a DC test and use it to discharge any connection or device that may become disconnected during a test. This is necessary because unexpected, dangerous charges can build up during a test if a connection comes loose.

At completion of a test, observe that the HV light is out. If the test was DC, the discharge may take some time.

Ensure the tester and test station uses all the built-in safety features and functions of the hipot testers.

Periodically test the memory to insure consistent testing and that the parameters are not altered.

Make sure the AC mains to the tester is properly installdl with low impedance ground connections. Also make sure that the emergency switch disconnects all power from the tester and the DUT and all electrical equipment and feeds in the testing area.

Operator and nearby co-workers should be trained in compressio only CPR in the event of a heart attack event or contact with high voltage.

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