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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.
Fire resistant plug socket cover
installing fire resistant plug socket cover
Cut away view of installation
Rear view of installation
fire resistant plug socket and switch box cover
Installation of box
Key Features & Benefits
  • 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.
Test Data

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

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.
Fitting Instructions
Step One
Push wire legs through holes in cover. Pierce the cover with a pencil and pas through cables.
socket and switch box cover
Step Two
With the wire legs vertical, fold sides until cover is a tight flat rectangle.
socket and switch box cover
Step Three
Holding on to the wire legs pass the cover through the switch / socket cut out and allow to spring back into shape.
socket and switch box cover
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.
socket and switch box cover
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.

Order Socket / Switch Box Covers
To ask questions or receive information about Fire and Acoustic Socket / Switch Box Covers, please use the form below.
Enter this code: 8765
Complete Fire Protection Ltd. Unit 2, Ferry Steps Industrial Eastate, Albert Road
St Philips, Bristol BS2 0XW Tel 0117 971 1917 Fax 0117 971 1727
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