BS EN 61643-312:2013 PDF

What is BS EN 61643-312 - Gas discharge tubes about?

BS EN 61643-312 is an international standard used for low-voltage surge protective devices that specifies the requirements and application principles of gas discharge tubes. By using BS EN 61643-312 you can select and apply these gas discharge tubes anywhere in the telecommunication sector. BS EN 61643-312 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling, and low-voltage power distribution networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. They are defined as a gap or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or personnel, or both, from high transient voltages. BS EN 61643-312 provides information about the characteristics and circuit app...