Touch Current Test (Itc ) - Fluke 6500 User Manual

Fluke 6500
Users Manual
Touch Current Test (I
TC
NEVER carry out this test unless you have first
carried out a thorough visual inspection, followed
by a test of the earthing (Class I appliances), and
then a test of the insulation. You must verify that
these tests have passed before engaging this test.
Live test! The appliance will be energized at
mains voltage. For this purpose, switch on the
appliance. Appliances driven by motors or
equipped with heating units may present a
danger for the person testing (comply with the
appliance instruction manual!). Ensure that the
appliance is in a safe condition to run and secure
it prior to testing.
The Touch Current test consists of:
• a fuse and L-N loop pre-test
• a leakage current measurement with approx. 2 kΩ
resistance connected between earth and exposed
conductive parts on the appliance via the test probe.
The measurement is performed by the direct method.
24
)
Warning
Caution
Connect the appliance and the test probe as indicated on
the display (see fig. 9) and apply the test probe to:
• any exposed conductive part on Class II appliances
• any exposed conductive parts that are not connected
to earth on Class I appliances.
Figure 9. Touch Current Test Connections
The display can show the following specific information:
Live test going on!
LMT
The acceptable test limit may have been
exceeded. Refer to standards and/or
guidance material.
Touch current overrange.
> 1.99 mA
Live tests have to be confirmed by pressing
be prompted to do so after pressing
. You will
YES
.
GO