1). The iron
shell inserted with the spring wire clip end first that the ferrule at
the outer surface. The danger may arise because the corrosive explosive
nature the atmosphere, because the installation must used damp or
low-temperature conditions because there need provide additional
mechanical protection for the electrical system Part the IEE Regulations
deals with these special installations locations.
A hole drilled through the plasterboard and into the cavity.
Where electrician not permanently site, MCBs are preferred that
overcurrent protection devices can safely reset unskilled person.
. All equipment must robust construction order fulfil
the on-site electrical requirements while being exposed rough handling,
vehicular nudging, the wind, rain and sun. The toggle
bolt passed through the fixture and the toggle wings screwed into the
bolt.40. The bolt the spring toggle cannot removed after fixing
without the loss the toggle wings. The toggle wings are compressed and passed through the hole in
the plasterboard and into the cavity where they spring apart and rest on
the cavity side the plasterboard.
Temporary construction site installations
Temporary electrical supplies provided construction sites can save many
man hours labour providing the energy required for fixed and portable
tools and lighting which speeds the completion project.1 shown Fig.39). The bolt tightened until the fixing
becomes firm. 14. However,
construction sites are dangerous places and the temporary electrical supply
which installed assist the construction process must comply with all
of the relevant wiring regulations for permanent installations (Regulation
110. All equipment socket outlets,
plugs and couplers must the industrial type 60439 and EN
60309 and specified Regulation 704.
Pass compressed
toggle wings through
plasterboard
Tighten bolt
until fixture
is secure
FIGURE 14.
SPRING TOGGLE BOLTS
A spring toggle bolt provides one method fixing hollow partition
walls which are usually faced with plasterboard and plaster skimming.39
Spring toggle bolt fixing.Basic Electrical Installation Work
324
A hole drilled the masonry take the iron shell and ferrule. this section will con-
sider some the installations which require special consideration.511.
Special installations locations
All electrical installations and installed equipment must safe use and
free from the dangers electric shock, but some installations locations
require special consideration because the inherent dangers the installed
conditions. becomes necessary remove and
refix the fixture new toggle bolt will have used. 14.
Plasterboard and plaster wall ceiling surfaces are not strong enough
to support load fixed directly into the plasterboard, but the spring
toggle spreads the load over larger area, making the fixing suitable for
light loads (see Fig.
Definition
A spring toggle bolt provides one
method fixing hollow partition
walls which are usually faced with
plasterboard and plaster skimming. The bolt passed through the fixture, located the
expanding nut and tightened until the fixing becomes secure
