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    A free resource library for information management across the built environment.

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    Uniclass 2015 is a unified classification for the UK industry covering all construction sectors.

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    Over 5,700 construction definitions for level of detail and information.

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Search objects

Browse the Uniclass 2015 tables:

  • Definitions
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  • Systems
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  • Electrical systems

Electricity distribution and transmission systems


  • Ss_70_30_35 - High voltage distribution and transmission systems
  • Ss_70_30_45 - Low voltage systems
  • Ss_70_30_60 - Overhead line traction power distribution systems
  • Ss_70_30_80 - Small power systems
  • Ss_70_30_90 - Conductor rail traction power distribution systems
  • Ss_70_30_94 - Vehicle charging systems

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