Electricity Asset Management Plan 2019-2029
110
Vector Limited://
Population and Age The combined length of 11 kV distribution underground feeders for the Auckland and Northern network is 3536 km of which 285 km will be past end of reliable asset life in 2029. Due to legacy data collection practices, we have about 160 km of 11 kV distribution cables with no age-related data. The table below is a summary of our HV distribution underground cables.
No of 11 kV underground distribution cable circuits
958
No of 11 kV underground distribution cable circuits with underwater/undersea portions
6
Length of 11 kV paper insulated lead (PILC) cables (km)
2125
Length of 11 kV cross-linked polyethylene (XLPE cable (km)
1411
Table 4-13 Key statistics for HV underground distribution cables
The graph below shows an age profile for Vector’s HV cables.
Figure 4-19 Age Profile for 11 kV and 22 kV HV cables by Voltage
Made with FlippingBook - professional solution for displaying marketing and sales documents online