SAFETY
If benches are placed back-to-back, be especially careful about the use of the bench
opposite the test station. Signs should be posted: "DANGER - HIGH VOLTAGE
TEST IN PROGRESS - UNAUTHORIZED PERSONNEL KEEP AWAY."
Power
Dielectric Voltage-Withstand Test Equipment must be connected to a good ground. Be
certain that the power wiring to the test bench is properly polarized and that the proper
low resistance bonding to ground is in place.
Power to the test station should be arranged so that it can be shut off by one prominently
marked switch located at the entrance to the test area. In the event of an emergency,
anyone can cut off the power before entering the test area to offer assistance.
The mains plug is used as the disconnecting device and shall
remain readily operable. The socket-outlet shall be installed near
the equipment and shall be easily accessible.
Do not replace the power supply cord with an improperly rated
cord. For North American: A UL listed and CSA labeled power
cord must be used with the instrument in the United States and
Canada. The power cord must include a NEMA5-15 style male plug, SVT or SJT cord
sets, and be rated for at least 125VAC, 10A, number 16 gauge (or 125VAC, 15A, number
14 gauge) wire or larger, and the length of the cord does not exceed 2 m must be used.
For European: A certified power supply cord not lighter than light PVC sheathed flexible
cord according to IEC 60227, designation H03 VV-F or H03 VVH2-F (for equipment
mass not exceeding 3 kg), or H05 VV-F or H05 VVH2-F2 (for equipment mass
exceeding 3 kg), and be rated for at least 3G 0.75 mm² (for rated current up to 10 A) or
3G 1.0mm² (for rated current over 10 A up to 16 A) wire or larger, and the length of the
cord does not exceed 2 m must be used.
Work Area
Perform the tests on a non-conducting table or workbench, if possible.
There should not be any metal in the work area between the operator and the location
where products being tested will be positioned.
Position the tester so the operator does not have to reach over the product under test to
activate or adjust the tester. If the product or component being tested is small, it may be
possible to construct guards or an enclosure, made of a non-conducting material such as
clear acrylic, such that the item being tested is within the guards or enclosure during the
test, and fit them with switches so that the tester will not operate unless the guards are in
place or the enclosure closed.
Keep the area clean and uncluttered. All test equipment and test leads not absolutely
necessary for the test should be removed from the test bench and put away. It should be
clear to both the operator and to any observers which product is being tested, and which
ones are waiting to be tested or have already been tested.
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