Cable installation in trays NEC

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The NEC fill calculations affect power cables and trays. Due to weight and heat considerations a maximum fill depth for any instrument / control tray is set to a proportion of the actual tray depth when calculating cross sectional fill capacity. The NEC fill calculations affect instrument and control cables and trays.

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Due to conduit pulling requirements NEC reduces the percentage of the cross sectional area of a conduit that can be filled according to the cable count in the conduit. The NEC fill calculations affect conduits. Paneldes can now use the NEC code to calculate raceway fill. Use the NEC Code to Calculate Raceway Filling.

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