Cable Trunking Size Calculator Excel Free Download

Step -1 Select “Type of Cable”

Step – 2 Select “Size of Wire “

Step – 3 Enter Number of Cable

Step – 4 Cable Factor will be get automatically.

Step – 5 Enter “Future Expansion” 10% to 20%

Step – 6 The Cable Trunking Size Result can get.

Example Calculation:

Cable Trunking Size Calculator for the following Power Cables running through Trunking. Consider 10% as Future expansion.

• 30 No. of 1.5 sq.mm Standard Wire
• 50 No. of 2.5 sq. mm Standard Wire
• 20 No. of 4 sq. mm Standard Wire

Calculations:
-As per Table Cable Factor for 1.5 Sq. mm Standard Cable = 8.1

• As per Table Wire Factor for 2.5 Sq. mm Standard Cable = 11.4
• As per Table Wire Factor for 4 Sq. mm Standard Cable = 15.2
• Total Wire Factor = No. of Wire x Wire Factor
• Total Wire Factor = (30×8.1)+(50×11.4)+(20×15.2) = 1117
• Total Wire Factor After 10% Future Expansion = 1117 + (1117×10%) =1161.4
• As per Table Suitable Size for PVC Trunking for Cable Factor 1161.4 is 75 x 37.5
  Suitable PVC Trunking is 75 x 37.5 mm

Other is here

electrical calculation sheet and software.

Here’s a general approach to calculating trunking size:

01 Determine Cable Types and Sizes:

Start by identifying the types and sizes of cables that will be installed in the trunking. Consider power wires, data wire, control wire, etc. Determine the cross-sectional area or diameter of each wire.

02. Calculate Total Cable Cross-Sectional Area:

Sum up the cross-sectional areas of all cables that will be installed in the trunking. This will give you the total space required to accommodate the wires.

03. Cable Trunking Size Calculator

You may refer to manufacturer specifications or industry standards for guidance on trunking sizes.

04. Consider Installation Factors

Take into account any bends, turns, or junctions in the wire route that may require larger trunking sizes or special fittings. Ensure that the chosen Cable Trunking Size Calculator can accommodate the installation layout effectively.

05. Review Regulations and Standards

Check local building codes, regulations, and industry standards to ensure compliance with minimum clearance requirements, fire safety regulations, and other relevant specifications for trunking installations.

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