30
Test Operator and Safety Considerations
1. Qualifications
This tester generates voltages and currents which can cause harmful or fatal electric shock and must only be
operated by a skilled worker trained in its use.
The operator should understand the electrical fundamentals of voltage, current, and resistance.
2. Safety Procedures
Operators should be thoroughly trained to follow these and all other applicable safety rules and procedures
before they begin a test. Defeating any safety system should be treated as a serious offense and should result
in severe penalties, such as removal from the Hipot testing job. Allowing unauthorized personnel in the area
during a test should also be dealt with as a serious offense.
3. Dress
Operators should not wear jewelry which could accidentally complete a circuit.
4. Medical Restrictions
This tester should not be operated by personnel with heart ailments or devices such as pacemakers.
5. Test Procedures
NEVER PERFORM A HIPOT TEST ON ENERGIZED CIRCUITRY OR EQUIPMENT!
If the tester has an external safety-ground connection, be sure that this is connected. Then connect the return
lead first for any test regardless of whether the device under test is a sample of insulating material tested with
electrodes, a component tested with the high voltage test lead, or a cord-connected device with a two or
three-prong plug.
Plug in the high voltage test lead only when it is being used. Handle its clip only by the insulator---never touch
the clip directly. Be certain that the operator has control over any remote test switches connected to the
Hipot. Double-check the return and high voltage connections to be certain that they are proper and secure.
NEVER TOUCH THE ITEM UNDER TEST OR ANYTHING CONNECTED TO IT WHILE HIGH
VOLTAGE IS PRESENT DURING THE HIPOT TEST.
When testing with DC, always discharge the capacitance of the item under test and anything the high voltage
may have contacted--such as test fixtures--before handling it or disconnecting the test leads.
To Next Page
Loading...
