ETAP FAQ # 11
The ETAP Cable Library contains data for thousands of cables. This data includes manufacturer as well as standard cable information. For easier accessibility, the library is categorized in eight levels. When selecting a cable it is important to understand the hierarchy of these levels as shown in the figure below. To select a cable, start by selecting the desired Unit System followed by Frequency, Conductor Type, Installation, kV and Class, continuing down to Size.
As illustrated in the figure below, select a cable with the following categories from the cable library selector: English, 60Hz, CU, Magnetic, 5 kV, 100% Class. Next, select the available Base Temperatures/Length for Impedance and Ampacity (Category 6). Notice that three selections are available for this category. Select the first row with the A/G Ampacity Ta and Tc of 40 and 90°C respectively and base temp of 90°C, the next corresponding category parameters are displayed as follows:
Source: KERITE Insulation: EPR #/Cable: 1/C
Source: KERITE Insulation: EPR #/Cable: 3/C
Select the second row, the row with the A/G Ampacity Ta and Tc of 40 and 105°C respectively and base temp of 75°C, the next level parameters are displayed as follows:
Source: NEC Insulation: Rubber #/Cable: 3/C
