Alternatives for Cabling Support in 40 Floor Projects

[eduardotobon]

I have a project of more than 40 floors in height, in which the cables go from ground floor to each of the floors (1 tube 2-1/2" PVC + 4 conductors THHN 3/0 + ground in the higher floors ) The designer recommends the use of OZ / GEDNEY type S cable clamps with pozi-grip These supports are very expensive and I want to know what alternatives are there to support the cables since the path is long.

 

[berkeman]

I have a project of more than 40 floors in height, in which the cables go from ground floor to each of the floors (1 tube 2-1/2" PVC + 4 conductors THHN 3/0 + ground in the higher floors ) The designer recommends the use of OZ / GEDNEY type S cable clamps with pozi-grip These supports are very expensive and I want to know what alternatives are there to support the cables since the path is long.

Welcome to the PF.

What country is this for? What electrical codes apply to these wire runs? Is it allowed to use non-conducting PVC tubing for wire runs in commercial buildings where you are?

 

[Babadag]

If you may interrupt-and terminate- the pvc conduit all 60 ft [see NEC Table 300.19(A)]-4 floors about-you may use usual support grips -Hubbel-Kelems-for instance. A box or a piece of covered cable tray is to be provided in this place. See-for instance :
http://www.graybar.com/manufacturers/hubbell/wdk/kellems-strain-relief-grips