subject: Leakage Present Tester Is Definitely An Abbreviation For Higher Potential [print this page] Leakage present tester is an abbreviation for high potential. Traditionally, Hipot is a term offered to a course of electrical safety screening instruments utilized to confirm electrical insulation in completed appliances, cables or other wired assemblies, printed circuit boards, electrical motors, and transformers. The phrase Hypot is really a trademark for hipot testers made by Related Analysis.A Hipot check (also known as a Dielectric Stand up to check) verifies the insulation of a item or element is sufficient to guard the operator from electrical shock. Inside a typical Hipot check, higher voltage is applied in between a product's current-carrying conductors and its metallic chassis. The ensuing current that flows with the insulation, known as leakage present, is monitored from the tester. The concept powering the check is the fact that if a deliberate over-application of test voltage does not cause the insulation to break up, the product will probably be secure to make use of under regular working conditions -- therefore the title, Dielectic Withstand check.Dielectric breakdown Test. The check voltage is increased until the dielectric fails, or breaks down, permitting too much current to movement. The dielectric is usually destroyed by this test so this test is used on a random sample foundation. This test allows designers to estimate the breakdown voltage of the product's style.Dielectric Stand up to Test. A regular check voltage is utilized (beneath the established Breakdown Voltage) and also the resulting leakage present is monitored. The leakage current will have to be beneath a preset restrict or the check is considered to have failed. This check is non-destructive and is usually required by safety agencies to become performed as a 100% production line test on all goods prior to they depart the factory.Insulation Resistance Test. This check is used to provide a quantifiable resistance value for all of a product's insulation. The test voltage is utilized in the exact same fashion as a standard Hipot check, but is specified to become Immediate Current (DC). The voltage and measured present worth are utilized to calculate the resistance in the insulation.For ac electronic load a higher current (quite often 25-30A AC) is applied to the item under check to confirm that all conductive elements of said item (exposed to the consumer) are connected to energy line ground.
