Cable Derating Calculator

Calculate cable current derating factors for temperature and grouping conditions to ensure proper current carrying capacity.

Cable Derating Parameters

Calculate cable current derating factors for temperature, grouping, and installation conditions

Analysis Type

Cable Specifications

Cable Type

Conductor Size

Conductor Material

Insulation Type

Environmental Conditions

Insulation Rating (°C)

Auto-set based on insulation type

Ambient Temperature (°C)

Installation Method

Grouping Conditions

Number of Cables

Conductors per Cable

Current-carrying conductors

Cable Spacing (diameters)

Spacing between cable centers in cable diameters

Load Characteristics

Load Type

Include harmonic content analysis

Apply diversity factor

Cable derating calculations per NEC Article 310. Multiple factors may apply simultaneously, significantly reducing current carrying capacity. Always verify with local codes.

Actions

Cable Derating Analysis

Current carrying capacity analysis with environmental and installation factors

Configure cable parameters to see derating analysis

Current carrying capacity analysis