Active Standard ASTM F1662 | Developed by Subcommittee: F01.18
Book of Standards Volume: 10.04
Historical (view previous versions of standard)
Significance and Use
Dielectric withstand voltage testing is useful for design verification, quality control of materials, and workmanship.
This test method is used to verify that the membrane switch can operate safely at its rated voltage, and withstand momentary overpotentials due to switching, surges and other similar electrical phenomena.
Specific areas of testing are, but not limited to:
Conductor/dielectric/conductor crossing point,
Close proximity of conductors, and
Any other conductive surface such as shielding or metal backing panel.
Dielectric withstand voltage testing may be destructive and units that have been tested should be considered unreliable for future use.
Testing using ac voltage may be useful for switches intended for control circuits powered by ac voltages.
1.1 This test method covers the verification of a specified dielectric withstand voltage or dielectric breakdown voltage of a membrane switch.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
F1663 Test Method for Determining the Capacitance of a Membrane Switch
F1680 Test Method for Determining Circuit Resistance of a Membrane Switch
ICS Number Code 29.120.40 (Switches)