I. Metallic Screened High Voltage Aerial Bundled Cable.
Phase core:
1. condcutor: stranded circular compacted aluminium alloy 1350
2.conductor screen: semi-conductive compound
3. insulation: XLPE
4.insulation screen: semi-conductive compound
5.metallic screen: copper tape
6.sheath: HDPE
Messenger:
stranded bare galvanised steel wires
II. Non-Metallic Screened High Voltage Aerial Bundled Cable .
Phase core:
1. condcutor: stranded circular compacted aluminium alloy 1350
2.conductor screen: semi-conductive compound
3. insulation: XLPE
4.insulation screen: semi-conductive compound
Messenger:
bare stranded circular compacted all aluminium alloy AAAC/1220 conductor .
For special applications, such as high wind locations, aluminium-clad
steel-reinforced catenaries are available.
III. Comparision of Mettallic & Non-mettallic screened ABC Cable:
NMS HV ABC Cable is smaller, lighter and less expensive than MS HV ABC.
IV. HV ABC cable bundle.
The three single core cables are bundled around the aluminium alloy
1120 catenary in a right hand lay
V. HV ABC Cable Operating temperatures .
(a) Normal operation 90°C
(b) Emergency operation 105°C
(c) Short circuit operation 250°C (5s max)