Engineering Reference

Cable & Underground

MV and HV XLPE cable specs by voltage class, conduit sizing, and pulling tension limits for direct buried and duct bank installations.

TypeVoltageSize (kcmil)ConductorOD (mm)Weight (kg/m)Ampacity — Duct (A)Ampacity — Direct (A)Insulation
MV XLPE5kV1/0Aluminum22.40.48155195XLPE
MV XLPE5kV2/0Aluminum23.60.54180225XLPE
MV XLPE5kV4/0Aluminum26.20.67230290XLPE
MV XLPE15kV1/0Aluminum30.20.68150190XLPE
MV XLPE15kV2/0Aluminum31.50.75175220XLPE
MV XLPE15kV4/0Aluminum340.9225280XLPE
MV XLPE15kV350Aluminum37.81.12295365XLPE
MV XLPE15kV500Aluminum41.41.38355440XLPE
MV XLPE25kV2/0Aluminum37.60.95170210XLPE
MV XLPE25kV350Aluminum42.21.28280350XLPE
MV XLPE25kV500Aluminum45.71.56340420XLPE
MV XLPE35kV350Aluminum46.51.42270335XLPE
MV XLPE35kV500Aluminum501.72325405XLPE
MV XLPE35kV750Aluminum55.42.18410510XLPE
HV XLPE69kV500Aluminum74.73.2310390XLPE
HV XLPE69kV1000Aluminum84.84.6445555XLPE
HV XLPE138kV1000Aluminum1036.1425530XLPE
HV XLPE230kV1600Aluminum1289.5560700XLPE

Source standards

Cable and underground data on this page references the published standards below. For design or specification work, always reference the current edition directly:

CSA C22.3 No. 7
Underground systems — construction, depth of burial, separations
CSA C68.10
Shielded power cable for commercial & industrial use, 5–46 kV
CSA C22.2 No. 52
Underground secondary & service-entrance cables (≤600 V)
ICEA S-94-649
Concentric neutral cables rated 5–46 kV
AEIC CS8
Extruded dielectric shielded power cables, 5–46 kV
IEEE Std 835
Standard power cable ampacity tables
NEC 300.5 / 300.50
Underground installation minimum cover requirements
Engineering Disclaimer

Reference data only. Ampacity values based on standard conditions per IEEE 835 and CSA C22.3. Actual values vary with soil thermal resistivity, burial depth, and grouping. Always verify with manufacturer data sheets and applicable standards before use in design. Enerzas assumes no liability for the use of this data.