Principle Of Measurement And Resistance - Fluke 1550C Manual Del Usurario

1550C/1555
Users Manual
Short circuit current

Principle of Measurement and Resistance

The Tester measures insulation parameters and displays the results using with
the following formulas.
Ohm's Capacitance
Law (charge)
V
R = C =
I
32
> 1 mA and < 2 mA
(Polarization Index)
Q
=
PI
V
PI
×
R 10 min
×
R 1 min
DAR
(Dielectric
absorption ratio)
×
R 1 min
=
DAR
×
R 30 s