SN EN 62040-1-2 : 2003

1 Scope and specific applications
   1.1 Scope
   1.2 Specific applications
2 Normative references
3 Definitions
4 General requirements
   4.1 UPS design and construction
   4.2 User information
   4.3 Classification of UPS
   4.4 General conditions for tests
   4.5 Operating parameters for tests
   4.6 Loads for tests
   4.7 Components
   4.8 Power interfaces
   4.9 Marking and instructions
5 Fundamental design requirements
   5.1 Protection against electric shock and energy
        hazards
   5.2 SELV
   5.3 Emergency switching device
   5.4 Backfeed protection
   5.5 Insulation
   5.6 Safety extra-low voltage (SELV) circuits
   5.7 Limited current circuits
   5.8 Provisions for protective earthing
   5.9 AC and d.c. power isolation
   5.10 Overcurrent and earth fault protection
   5.11 Service person protection
   5.12 Clearances, creepage distances and distances
        through insulation
   5.13 External signalling circuits
   5.14 Limited power source
6 Wiring, connections and supply
   6.1 General
   6.2 Connection to power sources
   6.3 Wiring terminals for external power conductors
7 Physical requirements
   7.1 Enclosure
   7.2 Stability
   7.3 Construction details
   7.4 Resistance to fire
   7.5 Battery location
   7.6 Temperature rise
8 Electrical requirements and simulated abnormal
   conditions
   8.1 General
   8.2 Electric strength
   8.3 Abnormal operating and fault conditions
Annexes
Annex ZA (normative) Normative references to international
         publication with their corresponding European
         publications

Covers electronic uninterruptible power systems with an electrical energy storage device in the d.c. link.