| Description of asset. |
|
Number of years or period. |
| (1) |
|
(2) |
| A. Land owned under full title |
... |
Infinite. |
| B. Land held under lease- |
|
|
| (a) for investment in the land |
... |
The period of the lease or the period remainingunexpired on the assignment of the lease.
|
| (b) for cost of clearing the site |
... |
The period of the lease remaining unexpired atthe date of clearing the site.
|
| C. Assets purchased new- |
|
|
|
(a) Plant and Machinery in generating stations,including plant foundations-
|
... |
|
| (I) Hydro-electric... |
... |
...Thirty-five. |
| (ii) Steam-electric... |
... |
...Twenty-five. |
| (iii) Diesel-electric... |
... |
...Fifteen. |
|
(b) Cooling towers and circulating water systems....
|
... |
...Thirty. |
|
(c) Hydraulic works forming part of ahydro-electric system including-
|
... |
|
|
(i) dams' spillways, weirs, canals, reinforcedconcrete flumes and syphons. surge tanks, hydraulic controlvalves, and other hydraulic works.
|
... |
...One hundred. |
|
(ii) reinforced concrete pipe-lines and tanks,steel pipelines, sluice gates, steel surge
|
... |
...Forty. |
|
(d) Buildings and Civil Engineering works of apermanent character, not mentioned above-
|
|
|
| (i) offices and show rooms |
... |
...Fifty. |
| (ii) containing thermoelectric generating plant. |
... |
...Thirty. |
| (iii) containing hydroelectric generating plant. |
... |
...Thirty-five. |
|
(iv) temporary erections such as woodenstructures.
|
... |
...Five. |
| (v) others |
... |
... Fifty. |
|
(e)Transformers, transformer kiosks, sub-stationequipment and other fixed apparatus (including plantfoundations)-
|
|
|
|
(i) Transformers including foundations) having arating of 100 kilovolt amperes and over.
|
... |
...Thirty-five. |
| (ii) others... |
... |
...Twenty-five. |
| (f) Switchgear, including cable connections |
... |
...Twenty. |
| (g) Batteries... |
... |
...Ten. |
|
(h) (i) Underground cables, including jointboxes and disconnecting boxes.
|
... |
...Forty. |
| (ii) Cable duct system |
... |
...Sixty. |
| (i) Overhead lines, including supports- |
|
|
|
(i) lines on steel or reinforced concretesupports operating at nominal voltages higher than 13.2kilovolts.
|
... |
...Thirty. |
|
(ii) other lines on steel or reinforced concretesupports.
|
... |
...Twenty-five. |
| (iii)lines on wood supports |
... |
...Twenty. |
| (j) Meters... |
... |
...Fifteen. |
| (k) Self-propelled vehicles |
... |
...Seven. |
| (l) 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 on the vesting date.
|