EN IEC 61000-4-11 sets the immunity test methods and range for equipment connected to low-voltage power supply networks for voltage dips, short interruptions, and voltage variations. It covers equipment not above 16A/phase for connection to 50 or 60 Hz A.C. Part 4-11 falls into the greater structure of EN IEC 61000 which covers broader EMC concepts. Voltage dips and short interruptions are caused by faults in the network, primarily short circuits, in installations or by sudden large changes of load. In certain cases, two or more consecutive dips or interruptions may occur. Voltage variations are caused by continuously varying loads connected to the network against a certain benchmark. This standard can be purchased at the IEC Webstore.
This immunity standard categorizes three levels of testing and can be verified by Dips and Interrupts EMC Test Equipment. The three different classes are defined further in the standard allowing testing to be conducted accordingly. This standard does not define testing with pass/fail criteria but on performance criterion, similar to that of other IEC standards.This standard does not cover equipment for connection to 400 Hz A.C. It places regulation on the environment, limits, testing and measurement techniques, installation and mitigation guidelines, and many other criteria.
Section 11 sets the requirements for EMC test equipment to test for voltage dips, short interruptions, and voltage variations. It specifies preventing the emissions of heavy disturbances on power supply and providing voltage dip equal or more severe then required by the standard. We offer rental products by Teseq, EMC Partner, EM Test, and Thermo-Keytek. We also provide a variety of rental accessories for our equipment allowing customers to meet a variety of requirements. The most commonly rented equipment to simulator this event are the Profline, NSG 3060, UCS500n7, TRA3000, and EMC Pro. These EMI dips and interrupts products come with an A2LA accredited calibration and free technical support included with the rental.