Appendix 4 Temperature Correction Table
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索引
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IEEE Std 43-2000 Recommended Prac-
tice for Testing Insulation Resistance of
Rotating Machinery (U.S.A.)
Object under test
Rotating machinery
Selectable reference
temperature range
20 to 60°C, (Default 40°C)
Convertible range of
actual temperature
used for measurement
20 to 60°C
Correction formula
Converted to a resistance value at
the reference temperature using
the formula below and result dis-
played.
Rtref : Resistance after correction
for reference temperature
of tref°C
Rt
: Resistance measured at
the temperature of t°C
tref
: Reference temperature [°C]
t
: Actual temperature used
for measurement [°C]
Rt
5
.
0
tref
10
/
)
(
R
×
=
−
t
tref
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