SAFETY
Dress
Operators should not wear jewelry which could accidentally complete a circuit.
Medical Restrictions
This instrument should not be operated by personnel with heart ailments or devices such
as pacemakers.
TEST PROCEDURES
!NEVER PERFORM A HIPOT TEST ON ENERGIZED CIRCUITRY OR EQUIPMENT!
If the instrument 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 item 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.
HOT STICK probes can be used to discharge any capacitance in the item under test as a
further safety precaution. A hot stick is a nonconducting rod about two feet long with a
metal probe at the end which is connected to a wire. To discharge the device under test,
two hot sticks are required. First connect both probe wires to a good earth ground. Then
touch one probe tip to the same place the return lead was connected. While holding the
first probe in place, touch the second probe tip to the same place where the high voltage
lead was connected.
KEY SAFETY POINTS TO REMEMBER:
Keep unqualified and unauthorized personnel away from the test area.
Arrange the test station in a safe and orderly manner.
Never touch the product or connections during a test.
In case of any problem, turn off the high voltage first.
Properly discharge any item tested with DC before touching connections.
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