| Description of asset |
Number of years of life of asset |
| A. Land owned under full title |
Infinity. |
| B. Land held under lease- |
|
| (a) for investment in the land |
The period of the leases or the period remaining unexpired onthe assignment of the lease.
|
| (b) for cost of clearing site |
The period of the lease remaining unexpired at the date ofclearing the site.
|
| (c) Assets purchased new- |
|
|
(a) Plant and machinery ingenerating including plant inundations-
|
|
| (i) Hydel electric |
Thirty-five |
| (ii) Steam electric |
Twenty-five |
| (iii) Diesel electric |
Fifteen |
|
(b) Cooling Towers and circulatingwater systems.
|
Thirty |
|
(c) Hydraulic works forming partof a hydro-electric system including-
|
|
|
(i) dams, spillways, weirs canals,reinforced concretes, flumes and syphons.
|
One hundred |
|
(ii) reinforced concrete pipelinesand surage tanks, steel pipelines, sluice gates, steel surgetanks, hydraulic control valves and other hydraulic works;
|
Forty |
|
(d) Buildings and CivilEngineering of a permanent character, not mentioned below:-
|
|
| (i) Offices and show rooms |
Fifty |
|
(ii) containing thermo-electricgenerating plant;
|
Thirty |
|
(iii) containing hydro-electricgenerating plant;
|
Thirty-five |
|
(iv) temporary erections such aswooden structures;
|
Five |
| (v) road other than katcha roads |
One hundred |
| (vi) others |
Fifty |
|
(e) Transformers, transformerkisk, sub-station equipment and other fined apparatus includingplant foundations-
|
|
|
(i) transformers includingfoundations having a rating of 100 kilovolt amperes and over.
|
Thirty-five |
| (ii) others |
Twenty-five |
|
(f) Switch gear, including cableconnections;
|
Twenty |
| (ff) Lightning arresters- |
|
| (i) Station type |
Twenty |
| (ii) Pole type |
Fifteen |
| (iii) Synchronous condensers |
Thirty-five |
| (g) Batteries |
Ten |
|
(h) (i) Underground cablesincluding joint boxes and disconnecting boxes ;
|
Forty |
| (ii) Cable dust system |
Sixty |
|
(i) Overhead lines includingsupport-
|
|
|
(i) lines on fabricated steelsupports operating at nominal voltages higher than 66 kilovolts;
|
Thirty-five |
|
(ii) lines on steel supportsoperating at nominal voltages higher than 13.2 kilovolts but notexceeding 66 kilovolts;
|
Thirty |
|
(iii) lines on steel or reinforcedtwenty five concrete supports;
|
|
| (iv) lines on treated wood support |
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 andfittings
|
Twenty |
| (ii) Office equipment |
Ten |
|
(iii) Internal wiring, includingfittings and apparatus;
|
Fifteen |
| (iv) Street-light fittings |
Fifteen |
| (o) Apparatus let on hire- |
|
| (i) other than meters |
Seven |
| (ii) Meters |
Twenty |
| (p) Communications equipment- |
|
|
(i) radio and high frequencycarrier system
|
Fifteen |
| (ii) Telephone lines and telephone |
Twenty |
|
(q) Assets purchased second handand assets not otherwise provided for in this Table.
|
Such reasonable period as State Government determines in eachcase having regard to the nature, age and condition of the assetat the lime of its acquisition by the owner.
|