Electricity Asset Management Plan 2019-2029
93
Vector Limited://
Route length of 22 kV gas-filled subtransmission cable (km)
2
Route length of 22 kV oil-filled subtransmission cable (km)
27
Route length of 22 kV paper insulated lead covered (PILC) subtransmission cable (km) Route length of 22 kV cross-linked polyethylene (XLPE) subtransmission cable (km)
44
64
No of 22 kV subtransmission cable joints
945
Table 4-3 Key statistics for 33 kV and 22 kV subtransmission network
Population and age The graphs below summarises the population and age of our 33 kV and 22 kV subtransmission underground cables.
Figure 4-7 Age profile for 33 kV and 22 kV subtransmission cables by voltage
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