NEC - Cable Installation Data

In this section, the user selects different combinations of cable installation data for the cable to be sized.

• Rated Voltage - used to enter the maximum voltage rating of the conductor to be sized

• Ambient Temperature NEC Ampacity Table - used to select the ambient temperature

• Conductor Temperature - used to select the required cable temperature

• Permitted Voltage Drop - used to select permissible limit values

• Starting Volt Drop - used to select the starting voltage drop limit

• Single / Multi - used to specify whether the cable is Single-Core or Multi-Core

• Neutral Core - used specify whether or not the cable has a neutral core

• Earth Core - used specify whether or not the cable has an earth core

• Armoured - used specify whether or not the cable is armoured

• Screened - used specify whether or not the cable is screened

• Material - used to select the material of the cable

• Core Grouping - used to select the cable core grouping from standard cable sizing data - see the table below for how this is calculated

• Parallel Option - used specify whether or not parallel cables are to be used

• Ambient Temperature - used to select the ambient temperature

• Cable Length - used to specify the length of the cable to be sized

• Insulation Type - used to select the insulation type of the cable

• Installation - used to select the cable installation arrangement

• Conduit Material - used to select the cable conduit material

• No. of Circuits - used to select the number of circuits

• Is raceway exposed to sunlight on rooftop - used to specify whether or not the raceway is exposure to sunlight on a rooftop

• Distance between raceway and rooftop - used to select the distance between the raceway and the rooftop

Once all cable configurations have been selected, click on the Size Cable button to calculate the cable size.

The user can save the cable sizing result by clicking the Save button.

The user can cancel the cable sizing result by clicking the Cancel button.

Core Grouping Calculation Table

Note:
If Earth is selected then for single-core cable type a core is created in the Cable Schedule as a child cable.