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. Lbs ft inside tray depth. Cable tray is sized based on the number and type of cables required for the current and future need. Cable are laying in single layer in cable tray.

The concept of cables in free air for power distribution and control cables has been adopted primarily for economic reasons. Calculations for loading of cable into tray is based upon manufacturers cable data compared to loading data for tray manufacturer. 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. Nearly every aspect of cable tray design and installation has been explored for the use of the reader.

A 50 fill ratio should equal the maximum number of cables pulled in a given cross section. 9 to begin a new calculation return to the input screen and select the clear button. 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 raceway tray support calculations.

We sincerely hope you will. 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. Android application for cable tray size calculator cable trays details cable trays components details with drawings calculate the width of the cable trays by enter the amount of cables the type. 2 fill in all pertinent project information.

Not required outside diameter cable qty cable size weight lbs ft total cable weight. Minimum allowable tray. Cable id cable o d. Cable tray should be perforated and 20 spare capacity.

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. On tue dec 2 2014 at 7 52 pm electrical notes articles wrote. Calculate size of cable tray for following cable schedule. 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.