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ASTM E780

Standard Test Method for Measuring the Insulation Resistance of Sheathed Thermocouple Material at Room Temperature

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Organization: ASTM
Publication Date: 15 October 1992
Status: inactive
Page Count: 4
ICS Code (Temperature-measuring instruments): 17.200.20
scope:

1. Scope

1.1 This test method covers the techniques and requirements for measuring the electrical insulation resistance at room temperature between the thermoelements and between each of the thermoelements and the metal sheath of compacted ceramic-insulated, sheathed thermocouple material. It may be used to measure the insulation resistance of bulk lengths of sheathed thermocouple material environmentally sealed at the time of manufacture. It may also be used for testing sheathed thermocouples with a Type U junction. This test method cannot be used for sheathed thermocouples with a Type G junction unless the junction is removed, prior to testing.

1.2 This test method applies to the testing of sheathed thermocouple materials that are suitable for use in air. It is also applicable for sheathed thermocouple materials whose sheath or thermoelements are composed of refractory metals and are tested in a dry and nonreactive environment.

1.3 This test method may be used for sheathed thermocouple material having an outside diameter of 1.0 mm or larger.

1.4 Since the insulation resistance at room temperature of sheathed thermocouple materials may change during shipment, storage and use, the results obtained by this test method may not be the same as insulation resistance values determined at some later time.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

January 15, 2017
Standard Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples and Mineral-Insulated, Metal-Sheathed Cable at Room Temperature
This test method provides the procedures for measuring the room temperature electrical insulation resistance between the thermoelements and between the thermoelements and the sheath, of a...
May 1, 2006
Standard Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples and Thermocouple Cable at Room Temperature
This test method provides the procedures for measuring the room temperature electrical insulation resistance between the thermoelements, and between the thermoelements and the sheath, of a...
May 1, 2006
Standard Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples and Thermocouple Cable at Room Temperature
This test method provides the procedures for measuring the room temperature electrical insulation resistance between the thermoelements, and between the thermoelements and the sheath, of a...
ASTM E780
October 15, 1992
Standard Test Method for Measuring the Insulation Resistance of Sheathed Thermocouple Material at Room Temperature
1. Scope 1.1 This test method covers the techniques and requirements for measuring the electrical insulation resistance at room temperature between the thermoelements and between each of the...
August 29, 1986
STANDARD METHOD FOR MEASURING THE INSULATION RESISTANCE OF SHEATHED THERMOCOUPLE MATERIAL AT ROOM TEMPERATURE
A description is not available for this item.
January 1, 1981
MEASURING THE INSULATION RESISTANCE OF SHEATHED THERMOCOUPLE MATERIAL AT ROOM TEMPERATURE, METHOD FOR
A description is not available for this item.
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