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Cable Ampacity Calculation Software


As a cable ampacity analysis application, ETAP electrical calculation software calculates cable ampacity based on the following standards:

  • IEEE* - IEEE Standard 399 - Recommended Practice for Industrial and Commercial Power Systems Analysis
  • ICEA* - ICEA P-54-440 - Ampacities of Cables in Open-Top Cable Tray
  • NEC* - NFPA 70 - National Electrical Code
  • British Standard** - BS 7671 - Requirements for Electrical Installations
  • IEC** - IEC 60364-5-52 - Selection and Erection of Electrical Equipment - Wiring Systems


* Module included in ETAP Base Package
** Additional Module - Not included in ETAP Base Package

This cable ampacity analysis program is systematic and simple. For example, for A/G trays, simply enter the tray height, width, and percent fill, the cable ampacity analysis software calculates the derated ampacity based on user specified ambient and conductor operating temperatures.

Types of installation:

  • A/G Conduit
  • A/G Trays
  • Air Drop – Suspended
  • Architrave
  • Brackets
  • Building Voids
  • Channel
  • Cleats
  • Embedded Direct
  • Ladder
  • Masonry
  • Open & Clipped
  • Trenches
  • Trunking
  • U/G Direct Buried
  • U/G Duct Bank
  • Window Frame
  • Wire Mesh

 

For duct banks, specify the number of rows, columns, ambient temperature, and soil thermals resistivity, ETAP as a cable ampacity calculation software, computes the derated ampacity based on the hottest location not exceeding the maximum operating temperature.

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