Patent ID: 6323652
Filing Date: 2001-11-27
Classification: G01R

Abstract:
An electrical testing device comprising: a case, a tape receptacle integrally formed in said case for holding a plurality of rolls of color coded tape, a power source, a first female receptacle disposed in said case for receiving a three-prong plug of an electrical power cord under test, a metal contact element extending from said case, indicating means on said case for indicating proper ground line continuity, and testing means coupled to said power source and said indicating means for testing said power source and said indicating means; said electrical testing device determining the continuity between ground terminals of said electrical power cord and determining the electrical grounding of an electrical power tool under test, said testing device further comprising:a male plug extending from said case, said male plug having a hot contact, a neutral contact, and a ground contact;a second female receptacle having respectively a hot contact, a neutral contact, and a ground contact recessed into said case;circuit means electrically coupled to said male plug and said second female receptacle for determining whether an impedance amount of the respective hot, neutral, and ground contact of said electrical power cord under test is in a safe operating range;a sequential switch for selectively coupling each respective said hot contact, said neutral contact and said ground contact to said circuit means;an actuation means for selectively providing electrical power from said power source to said circuit means; and display means for quantitatively indicating the impedance.