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ELECTRICAL SYMBOLS
ELECTRICAL SYMBOLS
ELECTRICAL SYMBOLS
ELECTRICAL SYMBOLS
ELECTRICAL SYMBOLS
01. Alternating current (AC) ...
02. Direct current (DC)
03. Wired across
04. Connection
05. Switch
06. Ground
07. Cell
08. Battery
09. Bulb
10. Coil
11. Resistor
12. Capacitor
13. Armature and brush
14. Fuse
15. Volt meter
16. Ammeter
17. Transformer
18. Transistor
19. Rectifier / Diode
20. Zener Diode
21. Silicon Controlled Rectifier ...
BA
BATTER
BA
BA
BA
CONSTRUCTION
Positive Plate
...
...
Negative Plate
...
...
Electrolyte
...
Separator
...
...
Container
...
...
Cover
...
Filling Plugs
...
...
Gang Piece
...
Terminals
...
Intercell Poles
...
...
Exhaust Tube
...
Exhaust Seal
Cap
...
...
SCR
TTER
TTERY Y Y Y Y
TTER
TTER
-
Porous mass of lead
dioxide (Pbo
active material)
-
Porous mass of spongy
Lead (Pb) (Negative active
material)
-
Diluted sulphuric acid
(H
SO
)
2
4
-
Micro
resistant electrical insulator
between positive &
negative plates
-
Polypropylene casing to
house the plate group &
electrolyte
-
To seal the battery
container
-
To facilitate filling of
electrolyte and water
topping up.
-
To vent gases through
common manifold and
exhaust nozzle
-
To make connections to
the electrical loads.
-
To connect the cells in
series internally.
-
To discharge the vent
gases.
-
To protect the dry charged
plates from oxidation.
) (Positive
2
porous,
acid
09-1
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