What is BS EN 61643-11 – Low voltage surge protective device about?
BS EN 61643-11 is a European standard that discusses the requirements and test methods for low-voltage surge protective devices. Surge protective device prevents downtime, improve the system and data reliability, and eliminate equipment damage caused by transient voltages and surges for power and signal lines.
BS EN 61643-11 is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are packaged to be connected to 50/60 Hz a.c. power circuits, and equipment rated up to 1 000 V r.m.s. Performance characteristics, standard methods for testing and ratings are established. These devices contain at least one nonlinear component and are intended to limit surge voltages and divert surge currents.
Who is BS EN 61643-11 – Low voltage surge protective device for?
BS EN 61643-11 on surge protective device applies to:
- Manufacturer of surge protector
- Quality testing personnel
- Electrical engineer
Why should you use BS EN 61643-11 – Low voltage surge protective device?
A low-voltage surge protective device (SPD) limits transient voltages by diverting or limiting surge current. A surge protective device is a device that contains at least one nonlinear component that is intended to limit surge voltages and divert surge currents.
BS EN 61643-11 provides you with low voltage guidance which addresses safety and performance tests for surge protective devices (SPDs). BS EN 61643-11 provides a mode of protection of an SPD which is an intended current path, between terminals that contain protective components, e.g., line-to-line, line-to-earth, line-to-neutral, neutral-to-earth.
BS EN 61643-11 navigates you through a voltage protection level where a maximum voltage is expected at the SPD terminals due to impulse stress with defined voltage steepness and impulse stress with a discharge current with given amplitude and waveshape.
As a user of BS EN 61643-1, you can avail the safety and protection tests for the low-voltage surge protective devices. In this manner, you can achieve precision in terms of product functionality.
What’s changed since the last update?
BS EN 61643-11:2012+A11:2018 supersedes BS EN 61643‑11:2012, which is withdrawn.
