milliVolt Drop Test
The millivolt drop test is a standard procedure for assessing the quality of electrical contacts in switchgear by measuring voltage loss in millivolts. It ensures low resistance and effective current flow, using a micro-ohmmeter to evaluate contact conditions.
This test is more efficient than temperature rise tests, helping to prevent overheating and ensuring reliable performance.
Products that can be tested
MCB, MCCB,RCCB, RCBO, Relay, Contactor, Changeover switches, Connector
Reference Standards
IEC : 60947-2, 60898-1, 60947-4-1, 61008-1, 61009-1, 60947-3, 60947-7-1.