Insulation Test - Fluke 1550C Manual Del Usurario

1550C/1555
Users Manual

Insulation Test

To avoid possible electric shock or personal injury:
•
Be aware that measuring insulation resistance
requires the application of potentially dangerous
voltages to the circuit. This may include exposed
bonded metalwork.
•
Remove all power from the circuit under test and
discharge circuit capacitance before testing a
circuit with the Tester.
•
Before proceeding, ensure that the installation is
wired correctly and no personnel are endangered
by any tests.
•
First connect the test leads to the Tester inputs
before you make connection to the circuit under
test.
PI/DAR Limits:
• Cap. Mdx > 1 μF and Res. Max > 100 Me
•
Res. Min < 200 k e
• Current min < 50 μA
•
If one of the limits is beyond, the Tester will display UNSPEC.
To perform an insulation test:
1. With the Tester turned on, set the available measurement options to meet
your test requirements. These include:
•
Test Voltage – Set range: 250 V to 10,000 V (50 V/100 V steps)
•
Ramp Test – Toggle on or off
•
Time Limit – No limit or from 1 to 99 minutes
2. Connect the probes to the circuit under test.
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XW Warning