Author Topic: Clearance for installation  (Read 203 times)


  • Administrator
  • Newbie
  • *****
  • Posts: 13
  • Karma: +0/-0
Clearance for installation
« on: March 23, 2020, 11:49:09 AM »

Clearance for installation

Clearance is the distance between the top of the uppermost cable in the conduit andthe inner top surface of the conduit. It should be at least 10% of the conduit innerdiameter or one inch for large cables or installations involving numerous bends.Equations for calculating clearance (CL) are presented as follows:

For single cable


For three cables, triplexed, triangular(E-24)


For three cables, cradles



D= conduit inner diameter, in inches
d= cable outer diameter, in inches

When calculating clearance, ensure all cable diameters are equal. If in doubt, use thetriplexed configuration equation. The cables may be single or multiple-conductorconstruction
« Last Edit: September 14, 2020, 09:58:48 AM by Warin FARVALD »


SimplePortal 2.3.7 © 2008-2020, SimplePortal