Cable Ampacity Calculation Software

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

IEEE	IEEE Standard 399 - 1997 Recommended Practice for Industrial and Commercial Power Systems Analysis

ICEA	ICEA P-54-440 - 2001 Ampacities of Cables in Open-Top Cable Tray

NEC	NFPA 70 - 2002 National Electrical Code

British Standard	BS 7671 - 2001 Requirements for Electrical Installations

IEC	IEC 60364-5-52 - 2001 Selection and Erection of Electrical Equipment - Wiring Systems

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.