32
WARNING
Tests 2, 3, and 4 involve dangerous high
voltages. These tests must be set up and
performed only by qualified personnel in
accordance with all safety precautions.
WARNING
The test equipment must be held on the power
line for a minimum of 3 seconds.
TEST 2 INSULATION OF THE CONNECTING CABLE
Figure 8 shows the test setup for testing the insulation of the connecting
cable using an ac milliammeter with suitable scale. Test voltage is 1.2 times
maximum nominal phase to ground voltage for 1 minute; leakage current is
less than 500 µA.
For example, test voltage for the Cat. No. 514500-2 tester is:
3
25000
2
.
1
36000
V
V
=
×
Figure 8: Connecting Cable Insulation Test Setup
A