Page 67 - Electrician - 1st Year - TT - Punjabi

2 Polythene insulated and PVC
sheathed with aluminium
conductor
a) single core flat & 250/440 1.5 to 50 Domestic wiring 1596
circular twin core on batten

b) flat twin with ECC & -do- 1.5 to 10 -do- 1596
circular
3 Lead alloy sheathed Aluminium Copper
i) single core 1.5 to 50 1.5 to 50
ii) 2,3 and 4-core circular 250/440 70 to 625 64.5 to 645
iii) twin & 3 core flat (ECC) 650/1100 1.5 to 16 1.5 to 16 Industrial wiring in damp 434 part I,II
250/440 corrosive atmosphere.
4 TRS sheathed
i) single core
ii) 2,3 and 4-core circular -do- 1.5 to 50 0.5 to 50 Wiring residential on 434 part I,II
batten,industrial wiring
iii) Twin & 3 core flat (ECC) -do- 1.5to625,64.5-645 Residential batten -do-
e) TRS sheathed flexible 1.5 to 16 1.5 to 16
f) Fire resisting asbestos 250/440 Welding cables in fire -do-
sheathed 650/1100 hazards.
g) Poly Phropene -do- Training cable for lifts -do-
sheathed flexible -do- and other mobile
equipments

5 Weather-proof cables 250/440 1.50 to 50
a)VIR insulated cotton, 650/1100
braided and treated with
weather resistance
compound
b)PVC insulated PVC -do- -do- Service connection and 434 part I,II
sheathed other outdoor application. 3035 part
I
c)Polythene insulated, taped -do- -do- 3035 part II
braided and compounded
6 Power cables heavy duty
1.1kV grade
PVC insulated PVC
sheathed cable
a)Unarmoured/armoured
i) Single core 650/1100 1.5 to 1000 Armoured cable in 1554
ii) Twin core 650/1100 1.5 to 500 singlecore not available. Part I/76
iii) Three-core -do- 1.5 to 400 Unarmoured power
iv) Three and a half core -do- 16 to 400 cables are used only in
v) Four core -do- 1.5 to 50 protected places. Use of
copper is banned for
such applications

7 Paper insulated, lead, 1.1kV 6 to 625 6 to 625 Dry places, heavy duty, 692-73
covered, single core, -do- -do- -do- hazardous applications
unarmoured. underground.
a) Twin-core, armoured -do- -do- -do-
b) Three and three and -do- -do- -do- Dry places for cotton 693-1965
half, armoured. braided, otherwise metal
sheathed.
8 Varnished cambric insulated -do-

N.B. 1 Where material of core is not mentioned, it is aluminium.
2 ECC - Earth continuity conductor.

ਤਾਕਤ - ਇਲੈਕਟ੍੍ਰਰੀਸ਼ਰੀਅਨ - (NSQF ਸੰ ਸ਼਼ੋਧਿਤੇ - 2022) - ਅਭਿਆਸ ਲਈ ਸੰਬੰਭਿਤ ਭਸਿਾਂਤ 1.2.17 - 19 47