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This evening's presentation focused on Cable thermal analysis calculations in duct banks & direct buried raceways. Cable manufacturers typically publish cable ampacity values at very specific conditions that rarely match actual installation parameters. The Cable Thermal Analysis Module can determine the operating temperature of cable conductors in a raceway system under steady state or transient conditions. The calculation is based on the NEC accepted Neher-McGrath approach or IEC 60287 Method.
The User Group Meeting concluded with an open discussion.