| Description of asset |
Number of years or period |
| (1) |
(2) |
| A. Land owned under full title. |
Infinite. |
|
B. Land held under lease -(a) for investmentin the land, The period of the lease, or the period remainingunexpired on the assignment of the lease.
|
|
|
(b) for cost of clearing site, The period ofthe lease remaining unexpired at the date of clearing the site.
|
|
C. Assess purchased new -(a) Plant andmachinery in generating stations, including plant foundations -
|
|
| (i) Hydro |
Thirty-five. |
| (ii) Steam |
Twenty-five. |
| (iii) Diesel |
Fifteen. |
|
(b) Cooling towers and circulating watersystems.
|
Thirty |
|
(c) Hydraulic works forming part of ahydroelectric system, including -
|
|
|
(i) dams, spillways, weirs, canals, reinforcedconcrete flumes and syphons.
|
One hundred |
|
(ii) reinforced concrete pipelines and surgetanks, steel pipelines, sluice gates, steel surge tanks,hydraulic control valves and other hydraulic works.
|
Forty |
|
(d) Buildings and civil engineering works of apermanent character, not mentioned above -
|
|
| (i) offices and show-rooms |
Fifty. |
|
(ii) containing thermoelectric generatingplant.
|
Thirty |
|
(iii) containing hydro-electric generatingplant
|
Thirty-five |
|
(iv) temporary erections, such as woodenstructures
|
Five |
| (v) others |
Fifty |
|
(e) Transformer, Transformer kiosks,sub-station equipment and other fixed apparatus (including plantfoundations) -
|
|
|
(i) transformers (including foundations) havinga rating of 100 kilo-volt amperes and over.
|
Thirty-five |
| (ii) Others. |
Twenty-five |
| (f) Switchgear, including cable connections |
Twenty |
| (g) Batteries. |
Ten. |
|
(h) (1) Underground cables, including, jointboxes and disconnecting boxes.
|
Forty |
| (2) Cable duct systems. |
Sixty |
| (i) Overhead lines, including supports - |
|
|
(i) lines on steel or reinforced concretesupports, operating at nominal voltage higher than 13.2 kilovolts.
|
Thirty |
|
(ii) other lines on steel or reinforcedconcrete supports.
|
Twenty-five |
| (iii) lines on wood supports. |
Twenty |
| (j) Metres. |
Fifteen |
| (k) Self-propelled vehicles. |
Seven |
| (1) Static machine tools,, Twenty |
|
| (m) Air-conditioning plant - |
|
| (i) Static. |
Fifteen |
| (ii) Portable. |
Seven |
| (n) (i) Office furniture and fittings |
Twenty |
| (ii) Office equipment. |
Ten |
| (o) Apparatus let on hire - |
|
| (i) other than motors, Seven |
|
| (ii) motors. |
Twenty. |
|
D. Assets purchased second hand and assets nototherwise provided for in this table
|
Such reasonable period as the Governmentdetermine in each case having regard to the nature, age andcondition of the asset at the time of its acquisition by theGovernment.
|