SN EN 50123-4 : 2003 AMD 1 2013
Current
The latest, up-to-date edition.
RAILWAY APPLICATIONS - FIXED INSTALLATIONS - D.C. SWITCHGEAR - PART 4: OUTDOOR D.C. SWITCH-DISCONNECTORS, SWITCH-DISCONNECTORS AND EARTHING SWITCHES
12-01-2013
1 Scope
2 Normative references
3 Definitions
4 Service requirements
5 Characteristics of the unit
5.1 Enumeration of the characteristics
5.2 Type of unit
5.3 Rated values
5.4 Class of use
5.5 Control circuits
5.6 Auxiliary contacts and circuits
6 Construction
6.1 General
6.2 Materials
6.3 Arcing contacts
6.4 Clearances and creepage distances
6.5 Primary connections
6.6 Location of the primary connections
6.7 Earthing terminal
6.8 Manual operation means
6.9 Unit enclosure
6.10 Temperature-rises
6.11 Dielectric strength
6.12 Electrical and mechanical endurance
6.13 Operation
6.14 Corrosion protection
6.15 Noise emission
6.16 Cooling
6.17 Servo-control (where applicable)
6.18 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
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.