Manual for High Voltage Process Performance Motors
62 - Maintenance
3BFP 000 063 R0101 REV D
Figure 7-2 Correlation between the insulation resistance and the temperature
R = Insulation resistance value at a specific temperature
R40 = Equivalent insulation resistance at 40°C
R40 = k x R
Example:
R = 30 M
Ω
measured at 20°C
k = 0.25
R40 = 0.25 x 30 M
Ω
= 7.5 M
Ω
Table 7-4. Temperature values in degrees Celsius (ºC) and degrees Fahrenheit (ºF)
°C
0
10
20
30
40
50
60
70
80
90
100
110
°F
32
50
68
86
104
122
140
158
176
194
212
230
