| MINING: |
| Infrastructure support assets: |
| Electrical
infrastructure assets (including power reticulation, substations,
switchgear and transformers) | 25 years | 8.00% | 4.00% | 1 Jul 2003 |
| Coal mining: |
| Infrastructure support assets: |
| Electrical
infrastructure assets (including reticulation assets, substations,
switch gear and transformers) | 25 years | 8.00% | 4.00% | 1 Jul 2003 |
| ELECTRICITY, GAS, WATER AND WASTE SERVICES: |
| Electricity supply: |
| Electricity distribution: |
| Distribution substations/transformers, pole or ground pad mounted | 40 years | 5.00% | 2.50% | 1 Jan 2002 |
| Distribution zone substations (excluding control, monitoring, communications and protection systems) | 40 years | 5.00% | 2.50% | 1 Jan 2002 |
| Electricity transmission: |
| Transmission
substations (excluding power transformers and control, monitoring,
communications and protection systems) | 40 years | 5.00% | 2.50% | 1 Jan 2002 |
| TRANSPORT, POSTAL AND WAREHOUSING: |
| Tramway and light rail passenger transport services: |
| Infrastructure assets: |
| Electrification assets: |
| Substations (incorporating switchgear and circuit breakers) | 40 years | 5.00% | 2.50% | 1 Jul 2010 |
| Rail freight and passenger transport services: |
| Infrastructure assets: |
| Electrification assets: |
| Substations (incorporating switchgear and circuit breakers) | 40 years | 5.00% | 2.50% | 1 Jan 2002 |
| Monorail operation assets: |
| Infrastructure assets: |
| Electrification assets: |
| Substations
(incorporating switchgear and circuit breakers) | 40 years | 5.00% | 2.50% | 1 Jul 2010 |