IEC EN 61000-4-34 Electromagnetic Compatibility (EMC) - Part 4-34: Test and Measurement Techniques - Voltage Drop Tests for Equipment With Mains Current More Than 16 Amps Per Phase

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of IEC EN 61000-4-34 testing. IEC EN 61000-4-34 defines immunity test methods and the preferred range of test levels for electrical and electronic equipment connected to low voltage power supply networks for voltage drops, short interruptions and voltage variations.

This standard applies to electrical and electronic equipment with a rated input current exceeding 16 A per phase. It covers equipment installed in residential areas and industrial machinery, especially voltage drops and short interruptions for equipment connected to 1 Hz or 3 Hz AC networks, including 50-phase and 60-phase mains.

The purpose of this standard is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to voltage drops, short interruptions and voltage variations. The test method documented in this part of IEC EN 61000 describes a consistent method for assessing the immunity of equipment or a system to a defined phenomenon. It has Basic EMC Publication status according to IEC Guide 107.

Voltage dips and short interruptions are caused by faults in the mains, especially short circuits, installations or sudden large load changes. In some cases, two or more consecutive drops or interruptions may occur. Voltage changes are caused by constantly changing loads connected to the network.

Voltage drops at equipment terminals are affected by transformer connections between the fault location in the supply system and the equipment connection point. Transformer connections will affect both the magnitude and phase relationship of the voltage drop experienced by the equipment.

These phenomena are random in nature and can be characterized as minimal in duration and deviation from rated voltage for laboratory simulation purposes.

Consequently, different types of tests are specified in this standard to simulate the effects of a sudden voltage change. These tests will be used only for certain and justified cases under the responsibility of product specifications or product committees.

It is the responsibility of the product committees to determine which of the events considered in this standard are relevant and to decide on the applicability of the test.

EUROLAB assists manufacturers with IEC EN 61000-4-34 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.