Normal temperature insulation resistance

When insulation type sheathed thermocouple is under ambient temperature 20±150C and relative humidity not more than 80%, insulation resistance between thermode and outer casting tube should comply with the stipulations in the table below:

 Diameter of sheathed thermocouple Test voltage Insulation resistance

Note: Insulation resistance is indicated as MO*m, which means insulation resistance of specimen with length 1m is 1000 MO and that of specimen with length 10m is 100 MO.