October 2013
Intermediate to advanced
192 pages
8h 30m
English
Content preview from Electric Wiring, 3rd Edition
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Junction boxes for ring circuits 67
(O
Fig.
5.4. Three methods of connecting a fixed appliance to a ring circuit using fused
connection units: (a) looping from a socket-outlet; (b) wiring from a junction box; (c) looping
wiring direct to the connection unit
used, the cord-grip device provided must always be tightened after
connection of the flexible cable cores.
Fused connection units feeding fixed appliances, having no visible
indication that they are on, should include an indicator light — normally a
small neon.
Flush-type fused connection units may be fitted to standard BS 1363 or
BS 3676 boxes. Pattresses are also available to convert flush-typ ...
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