UNE-EN 50123-2:2004
Current
The latest, up-to-date edition.
Railway applications - Fixed installations - D.C. switchgear -- Part 2: D.C. circuit breakers
Hardcopy , PDF
Spanish, Castilian, English
07-23-2004
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
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.