Cable Tray Support Span Calculation

Weight on support weight of span 2 cable tray maximum load in lb ft according to span catalog number 5 ft 6 ft 7 ft 8 ft 9 ft 10 ft.

Cable tray support span calculation.

Vertical cable tray elbows at the top of runs should be supported at the joint on each end. Intermediate support for upper tray required on piperacks over 6096mm wide. Quick tray fill and load calculations anchor must be evaluated separately supports should be placed within 24 in 610mm of a splice on straight. Calculate cable tray width calculate cable tray area calculate cable tray length calculate cable tray weight calculate remaining width of cable tray calculate remaining area of cable tray free download.

Support load calculation per iec 61537 one or more spans iec 61537 7 3i. Cable support systems in the international world iec61537 2004. The greater the number of spans the closer the similarity. Installation of support structure 09 section d 3.

Receiving and unloading 03 section c. Field modifications 25 section d 6. On tue dec 2 2014 at 7 52 pm electrical notes articles wrote. Straight length installation 16 section d 4.

The nema classes are based on cable loads of 50 75 and 100 per lineal foot. To join two components together clamp or fix to walls ceilings or other supports covers and cable retainers associated supports bespoke supports for cable tray and cable ladder other than bs 6946 channel. A typical multi span cable ladder or cable tray installation behaves largely as a continuous beam. Fittings installation 23 section d 5.

610mm of a splice on straight sections and the span between supports should not exceed the length of tray. However in practice a run must contain joints and it can also never be of infinite length so it is important to appreciate how its characteristics vary from span to span and how these. Common tools for installation 04 section d 2. 1 table of contents 02 section a.

Support of cable tray and ladder is typically done in the same fashion as us installations but generally has fewer restrictions as to loading design. Installation 03 section d 1. Cable load working load the cable load or the working load is the total weight of the cables to be placed in the tray. Ancillary products accessories.

For support spans greater than 5 feet 1 5m cable loads must be evaluated to ensure that the span between the supports is suitable for the load the support and anchor must be evaluated separately. This classification is based on the working load the total weight of the cables and the support span the distance between supports. Supports should be placed within 24 in. 6 cable ladder and cable tray systems including channel support systems and other associated supports definitions and abbreviations accessory component used for a supplementary function e g.