SN EN 60439-1 : 1999 + A1 2004

1 General
  1.1 Scope and object
  1.2 Normative references
2 Definitions
  2.1 General
  2.2 Constructional units of ASSEMBLIES
  2.3 External design of ASSEMBLIES
  2.4 Structural parts of ASSEMBLIES
  2.5 Conditions of installation of ASSEMBLIES
  2.6 Protective measures with regard to electric shock
  2.7 Gangways within ASSEMBLIES
  2.8 Electronic functions
  2.9 Insulation co-ordination
  2.10 Short-circuit currents
3 Classification of ASSEMBLIES
4 Electrical characteristics of ASSEMBLIES
  4.1 Rated voltages
  4.2 Rated current (I[n]) (of a circuit of an ASSEMBLY)
  4.3 Rated short-time withstand current (I[cw]) (of a
       circuit of an ASSEMBLY)
  4.4 Rated peak withstand current (I[pk]) (of a circuit
       of an ASSEMBLY)
  4.5 Rated conditional short-circuit current (I[cc])
       (of a circuit of an ASSEMBLY)
  4.6 Rated fused short-circuit current (I[cf])
       (of a circuit of an ASSEMBLY)
  4.7 Rated diversity factor
  4.8 Rated frequency
5 Information to be given regarding the ASSEMBLY
  5.1 Nameplates
  5.2 Markings
  5.3 Instructions for installation, operation and
       maintenance
6 Service conditions
  6.1 Normal service conditions
  6.2 Special service conditions
  6.3 Conditions during transport, storage and erection
7 Design and construction
  7.1 Mechanical design
  7.2 Enclosure and degree of protection
  7.3 Temperature rise
  7.4 Protection against electric shock
  7.5 Short-circuit protection and short-circuit withstand
       strength
  7.6 Switching devices and components installed in
       ASSEMBLIES
  7.7 Internal separation of ASSEMBLIES by barriers or
       partitions
  7.8 Electrical connections inside an ASSEMBLY: bars and
       insulated conductors
  7.9 Requirements for electronic equipment supply
       circuits
  7.10 Electromagnetic compatibility (EMC)
  7.11 Description of the types of electrical connections
       of functional units
8 Test specifications
  8.1 Classification of tests
  8.2 Type tests
  8.3 Routine tests
Annex A (normative) Minimum and maximum cross-sections
        of copper conductors suitable for connection
Annex B (normative) Method of calculating the cross-sectional
        area of protective conductors with regard to
        thermal stresses due to currents of short duration
Annex C (deleted)
Annex D (informative) Forms of internal separations
Annex E (informative) Items subject to agreement between
        manufacturer and user
Annex F (normative) Measurement of creepage distances and
        clearances
Annex G (normative) Correlation between the nominal voltage
        of the supply system and the rated impulse withstand
        voltage of the equipment
Annex H (normative) Electromagnetic compatibility (EMC)
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography

Applies to low-voltage switchgear and controlgear ASSEMBLIES (type-tested ASSEMBLIES (TTA) and partially type-tested ASSEMBLIES (PTTA)), the rated voltage of which does not exceed 1000 V a.c. at frequencies not exceeding 1000 Hz, or 1500 V d.c.