18-4 | Table Reference Cable
Correctional Factor: Ambient Temperature (Ca)
Correctional Factor: Cable Grouping Factor (Cg)
Correctional Factor: Thermal Insulation Factor (Ci)
Table: 4D1A | Current Carrying Capacity of Conductor
Source: IEE Wiring Regulation (16th Edition) Table 4D1B
Table 4D1B | Voltage Drop Properties of Conductor
Source: IEE Wiring Regulation (16th Edition) Table 4D1B
Table 54G | Sizing of Protective Conductor (S)
Source: IEE Wiring Regulation (16th Edition)
This sizing of protective conductor is apply upon phase conductor size in (mm²)
Phase Conductor | Protective conductor (E) | Example ____________
<16.0 mm² Same or 1:1 When RYBN is 10.0 mm² then E shall be 10 mm²
16 ~ 35 mm² Fixed 16mm² When RYBN is 30.0 mm² then E shall be 16 mm²
> 35.0 mm² 1/2 size When RYBN is 75.0 mm² then E shall be 35 mm²
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