Metric Cable Tray Sizes

Per the national electrical code article nema 392 9 b cable tray fill calculations and cable tray sizing calculations will be computed as follows.

Metric cable tray sizes.

The b line series metric cable ladder system is solely designed to increase productivity and decrease project cost and engineering complexity by reducing the number of structural steel supports needed for cable ladder systems in heavy industrial environments. Practical guide on the amount of cable weight that can be installed tested in accordance with nema ve 1 csa e222 2 126 1. On tue dec 2 2014 at 7 52 pm electrical notes articles wrote. 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.

The sum of the cross sectional areas of all cables cannot exceed 50 of the trays fill area. The system is fully compliant with both nema and iec load and electrical continuity. Chart is based on 50 fill of 4 utp category 6 cable o d 21 033lbs ft not maximum loading weight for the tray. The result is a lower total installed cost solution.

Refer to the wire gauge diameter table for dimensions. Cable trays may be filled 50 when using control or signal wiring. Mm metric strand nom. 03 9312 6633 metric cable imperial cable nom.

Standard cable wire sizes by steven mcfadyen on april 9th 2012 iec 60228 is the international electrotechnical commission s international standard on conductors of insulated cables. Metric to awg conversion chart american wire gauge awg sizes may be determined by measuring the diameter of the conductor the bare wire with the insulation removed.