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The
use of recessed switch and socket boxes in walls is widespread
in private, public and commercial buildings. The walls are subject
to fire regulations and most will have to be fire rated.
However, once a hole is made in the wall for a recessed switch
or socket box, the integrity of the construction and its ability
to perform in a fire can be reduced significantly, in addition
the ability of the wall to provide an effective acoustic barrier
is also impaired.
The prevention of fire from entering wall cavities and attacking
the structure is critical to the overall fire integrity of the
building. The fire and acoustic socket / switch box cover
has been developed to combat this. |
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Cut
away view of installation |
Rear
view of installation |
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Installation
of box |
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| Key
Features & Benefits |
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- Maintains
the fire protection performance of the wall - preventing or
delaying the spread of fire for up to 120 minutes.
- Prevents
or delays fire from entering a wall cavity and attacking the
building structure.
- Cover
even works when fitted back-to-back in uninsulated walls.
- Provides
an effective acoustic barrier to both impact and airborne sounds.
- Covers
fit in seconds.
- The
covers are pre-formed to fit the boxes.
- Simple
and fast mechanical fixing, no adhesives, no mess.
- Can
be fitted in dusty conditions.
- Can
be retro fitted to existing sockets / switches or fitted during
wall construction.
- Covers
can be stapled in position if fitted during wall construction.
- Replaces
time consuming plasterboard lining of sockets / switches.
- The
switch / socket box can be removed without disturbing or replacing
the cover.
- No
additional screws, drilling or support required - saves money.
- Covers
available to fit both single and double boxes.
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| Test
Data |
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Switch
/ socket covers have been fire tested to BS 476 part 20 in an
uninsulated plasterboard wall construction for 120 minutes without
failure in either insulation of integrity.
Test
number - Chilt/F07001 & Chilt/F07015
The
material has been independently acoustically tested by Sound Research
Laboratories to both BS EN 150 140-3:1995 and BS2750 part 3 1995.
Test
number - C-97-5L-7295-2 |
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The
covers have been developed to provide maximum protection for penetrations
created by the introduction of both single and double recessed
switch / socket boxes and to allow ease of fitting. In a fire
situation, the cover expands internally to fill all of the available
space with a fire resistant highly insulating char. The fire is
unable to penetrate the hole and the cover is able to give additional
insulation protection to the wall void by reducing the chance
of fire damage to flammable structural members. The penetration
in the wall also provides a path for air, thus creating heat loss
and drafts, the fitting of a cover significantly reduces this
problem. |
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| Fitting
Instructions |
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Step
One
Push wire legs through holes in cover. Pierce the cover with
a pencil and pas through cables. |
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Step
Two
With the wire legs vertical, fold sides until cover is a tight
flat rectangle. |
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Step
Three
Holding on to the wire legs pass the cover through the switch
/ socket cut out and allow to spring back into shape. |
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Step
Four
Pull the wire legs through the cut out until the steps in
the wire can locate on the face of the wall, small notches
can be made in the plasterboard to allow wire to sit flush.
Cut away excess wire from legs. Fit box as normal. |
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| Sizes |
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The Socket/Switch Box Covers are designed to
fit all common single and double boxes.
*In
a wall with two layers of plasterboard on each face, the ends
of the fixing wires can be pushed between the plasterboard layers. |
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