Page 121 - Electrician - TT (Volume 1)

ELECTRICIAN - CITS

General accessories : Some accessories are used for general and special purposes such as:
– appliance connectors (or) iron connectors
– adapters
– ceiling roses
a two-plate

b three-plate
– connectors
– distribution board
– neutral links.
Appliance connectors or iron connectors : These are used as female connectors to supply current to electric
kettles, electric iron, hotplate, heaters etc. It is made of bakelite or porcelain. These are rated as 16A, 250V
(Fig 12).
Adaptor (Fig 13): They are used for taking supply from a lamp holder for small appliances. They are made out
of bakelite. They are available in ratings up to 6 A 250 V.

Fig 12
Fig 13

Ceiling roses: Ceiling roses are used to provide tapping points from the wiring for supplying power to fans,
pendent-holders, tube lights etc. Normally flexible wires are used for tapping from the ceiling roses.
Two-plate ceiling rose (Fig 14a & b): This is made of bakelite and it has 2 terminals (phase & neutral) which are
separated from each other by a bakelite bridge. The two-plate ceiling rose is used for 6A, 250V current capacity.
Three-plate ceiling rose: This type of ceiling rose has 3 terminals which are separated from each other by a
bakelite bridge. It can be used for two purposes. (Fig 14c)
– Bunch light control
– To provide tapping for phase wire (Fig 15).

Fig 14 & 15

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CITS : Power - Electrician & Wireman - Lesson 20-25