DS/EN 50123-5
Railway applications - Fixed installations - D.C. switchgear - Part 5: Surge arresters and low-voltage limiters for specific use in d.c. systems
| Organization: | DS |
| Publication Date: | 30 September 1997 |
| Status: | inactive |
| Page Count: | 36 |
| ICS Code (Electric traction equipment): | 29.280 |
scope:
Divisions 1, 2, 3, and 4 of EN 50123-5 cover particular requirements for surge arresters for specific use in fixed installations of d.c. traction systems. These are surge arresters consisting of one or more nonlinear resistors which may be in series with single or multiple spark gaps. Low-voltage limiters are covered under 5 of this EN 50123-5. These are protective devices mainly used to connect certain portions of the circuit, in case of voltages exceeding,because of an abnormal situation,a predetermined limited value. They are not used in general to provide surge protection.
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