NEN EN 50123-2 : 2003
Current
The latest, up-to-date edition.
RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SWITCHGEAR - PART 2: D.C. CIRCUIT BREAKERS
12-01-2013
1 Scope
2 Normative references
3 Definitions
4 Service requirements
5 Characteristics of the circuit breaker
5.1 Enumeration of the characteristics
5.2 Type of circuit breaker
5.3 Rated values and limit values for the main
circuit
5.4 Control circuits
5.5 Auxiliary contacts and circuits
5.6 Releases
5.7 Arc voltage
6 Construction
6.1 General
6.2 Circuit breaker enclosures
6.3 Temperature-rises
6.4 Dielectric strength
6.5 Electrical and mechanical endurance
6.6 Operation
6.7 Corrosion protection
6.8 Noise emission
6.9 Cooling
6.10 Servo-control (where applicable)
6.11 Other facilities
7 Information and marking
7.1 Information
7.2 Marking
8 Tests
8.1 General
8.2 Applicable tests and test sequence
8.3 Performance of tests
Annex A (informative) Information required
A.1 General
A.2 Procurement specification
A.3 Manufacturer's specification
Tables
Specifies requirements for d.c. circuit breakers for use in stationary installations of traction systems.
| DevelopmentNote |
Supersedes NEN IEC 61992-2. (01/2007)
|
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| SN EN 50123-2 : 2003 | Identical |
| NBN EN 50123-2 : 2003 | Identical |
| DIN EN 50123-2 : 2003-11 | Identical |
| EN 50123-2:2003 | Identical |
| NF EN 50123-2 : 2004 | Identical |
| BS EN 50123-2:2003 | Identical |
| I.S. EN 50123-2:2003 | Identical |
| UNE-EN 50123-2:2004 | Identical |
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