GB/T 25890.5-2010 Replaced National standards

GB/T 25890.5-2010 Railway applications—Fixed installations—DC switchgear—Part 5:Surge arresters and low-voltage limiters for specific use in d.c.system

Publish Date: 2011-01-10 Implement Date: 2011-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 25890.5-2010

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Traction electrical equipment

ICS Name: Electric traction equipment

Publish Date: 2011-01-10

Implement Date: 2011-06-01

Pages: 24 pages

Scope

The requirements for lightning arresters used in ground equipment of DC traction power supply systems are specified in Chapters 4, 5 and 6 of this part of GB/T 25890. The said lightning arresters include one or more non-linear resistance elements, which can be connected in series with one or more discharge gaps.
The requirements for low-voltage limiters are specified in Chapter 7 of this part of GB/T 25890. In ground equipment of DC traction power supply systems, when the voltage exceeds the specified value, the limiters will be connected to certain parts of the system, thereby providing protection. Low-voltage limiters can also be used together with contactors and other equipment to form a self-recovery device. Generally, limiters do not provide surge protection.
Low-voltage limiters are mainly used as follows:
——Connecting metal rails;
——Protecting track circuits;
——Grounding rails in substations;
——Protecting cathode circuits;
——Protecting cable shielding layers.

Development Information

Word Count: 46 Thousand words Pages: 24 pages

Same series standard

Superseded by the following standards

GB/T 43022.1-2023 Railway applications—DC surge arresters and voltage limiting devices—Part 1:Metal-oxide surge arresters without gaps GB/T 43022.2-2023 Railway applications—DC surge arresters and voltage limiting devices—Part 2:Voltage limiting devices

Referenced Standards

GB/T 25890.1-2010 Railway applications—Fixed installations—DC switchgear—Part 1:General IEC 60060-1:1989 IEC 60099-1:1991 修改件1(1999) IEC 60099-4:2004 IEC 61643-1:2005 EN 50125-2:2002