long staircase with more
than two switches controlling the same lights would require intermediate
switching (see Fig. Cord
switches can provide convenient method control bedrooms bath-
rooms and for independently controlling office luminaire.7
Wiring diagram one-way converted two-way switch control.
. 14.
Blue
Blue
Blue
Junction box
Brown
Brown
Brown
Brown sleeve
Brown
Black
Grey
Neutral
CPC
Line
Lamp
C C
Two-way
switches
FIGURE 14.6
Wiring diagram intermediate switch control.7.6).
To convert existing one-way switch control into two-way switch con-
trol, three-core and earth cable run from the existing switch position
to the proposed second switch position.Basic Electrical Installation Work
286
may switched off either position. The existing one-way switch is
replaced two-way switch and connected shown Fig. 14.
One-way, two-way intermediate switches can obtained plate
switches for wall mounting ceiling mounted cord switches.
Blue
Blue
Blue
Blue
Junction box
Two-way
switches and C
Intermediate
switch B
C
Brown
Brown
Brown
Brown
Brown
Brown
Black
Grey
Grey
Black
Neutral
CPC
Line
Lamp
A C
FIGURE 14
