Cable Tray Design Calculation

How to design cable tray.

Cable tray design calculation. 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. Cable raceway tray support calculations. In this series of videos about cable tray systems you will know the usage of the cable tray systems in projects its different types the methods of cable t. The concept of cables in free air for power distribution and control cables has been adopted primarily for economic reasons.

Distance between each cable is 10mm. 9 to begin a new calculation return to the input screen and select the clear button. 1 2 no s of 3 5cx300 sq mm xlpe cable having 59 7mm outer diameter and 5 9 kg meter weight 2 2 no s of 3 5cx400 sq mm. Most projects are roughly defined at the start of cable tray design for projects that are not 100 percent defined before design start the cost of and time used in coping with continuous changes during the engineering and drafting design phases will be substantially less for cable tray wiring systems than for conduit wiring systems.

Minimum allowable tray. A 50 fill ratio should equal the maximum number of cables pulled in a given cross section. In order to achieve this objective the engineer must bear in mind that the general design rules established for aluminum and steel structures are not always compatible with design rules for a cable tray system. Cable tray is sized based on the number and type of cables required for the current and future need.

Calculations for loading of cable into tray is based upon manufacturers cable data compared to loading data for tray manufacturer. Not required outside diameter cable qty cable size weight lbs ft total cable weight. Cable tray should be perforated and 20 spare capacity. Nearly every aspect of cable tray design and installation has been explored for the use of the reader.

Calculate size of cable tray for following cable schedule. 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. Cable are laying in single layer in cable tray. 2 fill in all pertinent project information.

Cable id cable o d. This will clear both the input and output pages. We sincerely hope you will. If a topic has not been covered sufficiently to answer a specific question or if additional information is desired contact the engineering department at b line.