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Intumescent Downlighter Covers
Use:
Envirograf® intumescent downlighter covers and fire cages
are indicated for use in fire-rated and suspended ceilings,
in order to contain fire and maintain the ceiling's fire rating.
Performance:
Only Envirograf® covers have passed all relevant British
Standards tests on types of ceilings, complying with document
B of UK Building regulations and the revised 16th edition
IEE regulations.
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Intumescent Tents for recessed light units
Use:
Envirograf® intumescent tents are utilised where recessed
fluorescent light fittings are installed above suspended or
fire-rated ceilings, in order to maintain the fire integrity
of the ceiling.
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Acoustic Downlighter Covers and Cages
Use:
Envirograf® acoustic downlighter covers can be used in
areas that require good absorption of airborne and impact
sound, such as businesses and shops below residential apartments
and between floors of residential apartments. Acoustic covers
have been fully tested at the Building Test Centre. Reports
are available on request.
Performance:
Only Envirograf® covers have passed all relevant British
Standards tests on types of ceilings, complying with document
B of UK Building regulations and the revised 16th edition
IEE regulations.
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Intumescent Pads
Use:
The pads are adhered to the inside of metal or plastic electrical
trunking at points where the trunking passes through fire
barrier floors or walls. They provide protection whilst allowing
easy access to the cables. In a fire, the intumescent material
expands, filling the trunking and preventing the passage of
fire. Sets of two or three pads are supplied for larger trunking.
Different protection is required for plastic trunking passing
through hollow partition walls, and we refer you to our Product
110/H for this.
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Intumescent Cable Tray Pillow
Use:
Envirograf® cable tray pillows should be used where cable
trays penetrate ceilings, floors, and walls, to fill the opening
and protect it from the passage of fire. The retention wire
and tag are fitted to the cable tray as a safeguard against
removal of the pillow during maintenance
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Intumescent Gaskets
Use:
Envirograf® intumescent gaskets should be used where electrical
conduits, boxes, pattresses, or trunking penetrates fire floors
or fire walls, in order to arrest the spread of fire through
the electrical system. There is no restriction to cable movement
when fitted, but the intumescent expands in a fire, causing
it to fill the cavity in the box, conduit, etc. Envirograf®
acoustic protection covers are indicated to reduce sound transmission
through electrical wiring boxes. Envirograf® intumescent
gaskets and acoustic protection covers, plus new electrical
boxes with pre-fitted intumescent gaskets are the simplest
way to provide passive fire protection to electrical installations,
either as refurbishment projects or new installations.
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