
1 20 Installation of conduit systems
For situations not covered by these tables, advice should be obtained from
the manufacturers.
Screwed fittings
To enable continuous runs of conduit to follow curves and varied paths and
also to overcome the necessity of separate runs of conduit for each circuit,
various fittings such as elbows, joint-boxes, switch-boxes, etc., can be used.
These are supplied with their connecting-points female threaded with the
standard tapping, to allow the threaded conduit to be screwed into them.
Their types and shapes are extremely varied due to the desire of
manufacturers to produce fittings requiring a minimum of labou ...