Cable Tray Size Calculation Formula Excel

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.

Cable tray size calculation formula excel.

Cable sizing excel formula. Three phase circuits formula wire circular mils 2 x 0 866 x specific resistance x amperes x distance voltage drop source voltage where specific resistance 11 2 for copper cable specific resistance 17 4 for aluminium cable. Cable tray should be perforated and 20 spare capacity. Highland il 62249.

All the calculations are subjected to the requirements of the national electrical code nec. Based on number of cables cable tray size and bracket type. Electrical tools ms excel spreadsheets this section is dedicated to tools every electrical engineer can use in daily work these spreadsheets below will make your job much more easier alowing you to shorten the time used for endless calculations of cables voltage drop various selections of circuit breakers capacitors cable size and so on. This excel sheet contains formulas for calculating cable tray size and conduit size.

Wire mesh cable tray fill ratio fill ratio cross section of cable cross section of tray according to nec 392 9 b when using ventilated tray with multiconductor control cable the sum of the cross sectional areas shall not exceed 50 percent of the interior cross section of the tray. Cable tray sizing program cooper b line 509 west monroe st. All data used in this excel sheet are according to iee. Calculate size of cable tray for following cable schedule.

9 to begin a new calculation return to the input screen and select the clear button. Cable tray size includes tray width tray length tray weight and tray area. Has anyone made up an excel spreadsheet for sizing cable. This will clear both the input and output pages.

To size conduit and cable tray per nec. Cable are laying in single layer in cable tray. 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. Distance between each cable is 10mm.

Lbs ft inside tray depth. For heavily loaded and or long circuits to confirm operation within nec recommendations min skm ptw dapper spreadsheets hand calcs. 13 responses to calculate size of cable tray excel sheet atta khan says. Not required outside diameter cable qty cable size weight lbs ft total cable weight.

Minimum allowable tray. December 2 2014 at 3 38 pm. 60 and 90. Transient motor for starting large motors largest motor at each.

Download also cable tray and conduit sizing excel sheet. I have amtech but its only the basic single cable version which wont size three phase or anything 100amp. Nec tables cablematic plus. Can you send me the calculation spreadsheet for cable size.

2 fill in all pertinent project information.