230V AC
110V DC
110V DC
VOLTAGE
230 V AC
14
13
AC DISTRIBUTION BOARD
LT SUPPLY TRANSFORMAR TO
15A DC FUSE BOX TO
TERMINAL BOARD
SUPPLY
AC POWER
-DO-
12
11
6
4,5
1,2,3
REFNo
110 V BATTERYCHARGER
AC DISTRIBUTION BOARD
FROM 110 V BATTERY SET TO
15A DC DISTRIBUTION BOARD
FUSE BOX AND FUSE BOX TO
TO 110V BATTERY
FROM INTREUPTOR TO
SUPPLYDC POWER
-DO-
-DO-
FROM INTERRUPTOR
FROM INTERRUPTOR TO INTERRUPTOR
TO TERMINAL BOARD
RUN OF CABLE
CONTROL
SUPPLYHEATER
INDICATION&
PURPOSE
2CORE 25 sqmm ARMOURED CABLE WITH ALUMINIUM CONDUCTORSPVC
INSULATED AND SHEATED.(1100 V GRADE)
-DO- -DO-
-do-16m
-do- 6m
(1100V GRADE)
-DO-
2CORE 2.5 sqmm UNARMOURED
PVC INSULATED AND SHEATED.CABLE WITH COPPER CONDUCTORS
(1100V GRADE)
-DO-
-DO-
-DO-
TWO RUN OF CABLE
PVC INSULATED AND SHEATED.WITH ALUMINIUM CONDUCTORS2 CORE 4.0
sqmm UNARMOURED CABLE
DETAILS OF CABLE
CABLE WITH COPPER CONDUCTORSPVC INSULATED AND SHEATED.
7 CORE 2.5 sqmm UNARMOURED
(1100V GRADE)
-do-
-do-
5m
6m
-do-
58.50mIS1554
-do-
(PT-1)1976
24m
SPEC . LENGTHIN METERS
APPROX
FROM PT TYPE-1
TO TERMINAL BOARD.
2 CORE, 2.5 sqmm UNARMOUREDCABLE WITH COPPER CONDUCTORSPVC
INSULATED AND SHEATHED(1100V GRADE)
100V ACCATENARYVOLTAGE
INDICATION7,8,9,1032m-do-
1. ALL DIMENSIONS ARE IN mm UNLESS OTHERWISE SPECIFIED.
2. WHEREVER 50X6 EARTHING FLATS ARE WELDED, THE MS. SURFACES OF
JUNCTIONS SHALL BE SCRAPPED OUT
BEFORE WELDING AND SHALL BE TREATED FOR ANTICORROSION AS PER
STANDARD PRACTICE.3. RESISTANCE OF HT EARTH CIRCUITS SHALL BE
LESSTHAN 2 OHMS.4. THE MS FLATS FORMING THE HT EARTH BUS SHALL BE
BURRIED AT A DEPTH OF 300 mm BELOW GROUND LEVEL
AND LT EARTH BUS SHALL BE FIXEDTO WALL INSIDE THE CUBICLE AT THE
HEIGHT OF 300 mm FROM FLOOR LEVEL
5. RESISTANCE OF LT EARTH CIRCUIT SHALL BE LESSTHAN 2 OHMS.6.
FOR ARRANGEMENT OF SINGLE &MULTIPLE EARTHING STATIONS REFER STY
NO 01&02 OF DRG NO ETI OHE/P/7020. 7. IF NECESSERY,
EARTHINGSTATIONS SHALL BE ADDED IN PARALLEL TO BRING DOWN THE EARTH
RESISTANCE
9. IF NECESSARY EARTHING STATIONS SHALL BE ADDED IN PARALLEL TO
BRINGDOWN THE EARTH RESISTANCE
8. THE MS FLATS SHALL BE PAINTED WITH TWO COATS OF REDOXIDE ZINC
CHROMATE PRIMER AND FINISHED WITH
MEANS OF 2 Nos.OF 8 SWG GI WIRES.
NOTES
WITH SUITABLE SUPPORTING ON TEAK WOOD BLOCKS
LESS THAN 2 OHMS
TWO COATS OF BITUMEN.
TO LESS THAN 2 OHMS10. EARTHING OF BATTERY CHARGER, RC PANEL AND
L.T. DISTRIBUTION BOARD SHALL BE DONE BY
REINDIAN RAILWAYS
15 TERMINAL BOARD 1 unit
