test plug การใช้

• The test plug-in hybrids were built with a button to allow test drivers to manually choose between electricity or diesel engine power at any time.
• On 13 March 2009, a Joint STARS aircraft was damaged beyond economical repair when a test plug was left on a fuel tank vent, subsequently causing the fuel tank to rupture during in-flight refueling.
• An ungrounded GFI receptacle will trip using the built-in " test " button, but will not trip using a GFI test plug, because the plug tests by shorting a small current from line to the non-existent ground.