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MONOLUX® - E & M enclosure
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E & M 4-sided enclosure
Fire protection for electrical and mechanical services is crucial where the systems must remain functioning
until all personnel have escaped in case of fire. The systems may include:
Electrically operated fire alarms Emergency escape route lighting Electrically operated extinguishing systems Power supply for fire service elevators in high-rise buildings Water mains to sprinkler system
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MONOLUX® enclosure systems for building
services are designed to prevent the spread of fire from one compartment to another for periods of up
to 240 minutes. Cable ducts constructed from MONOLUX®
boards carrying non fire rated cables provide an inexpensive solution to fire protection when compared
to alternatives using fire rated cables. For more details on how to maintain cable functionality under
fire conditions, please consult Intumex Asia Pacific.
MONOLUX® can be installed in the following
configurations, all of which are suitable for ducts exposed to either internal or external fire: |
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Fire resistance (BS 476: Part 20: 1987)
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Board thickness
(mm) |
Dimensions of duct
(mm) |
Rock wool
(thickness x density) |
Stability &
integrity
(minimum)
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Insulation
(minimum) |
| 120 |
120 |
16 |
Up to 3000 wide x 1500 high |
50mm x 100kg/m³ |
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240 |
240 |
25 |
Up to 3000 wide x 1500 high |
100mm x 100kg/m³ |
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Steel cable ladders or trays, independently supported from the
building structure. |
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MONOLUX® board, thickness dependant upon fire resistance
requirements, Please consult Intumex Asia Pacific for details to
meet your specific performance requirements. |
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Galvanised steel angle, nominal 25mm x 25mm x 0.6mm at board
corners. Note that this angle is not always required, thicker boards
can be simply screwed or stapled edge to face. |
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Corrosion resistant screws at nominal 200mm centres, or steel
wire staples at 100mm centres. Length of screws and staple
dimension dependant upon the thickness of the MONOLUX® boards
and the fire resistance levels. Please consult Intumex Asia Pacific
for details. |
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Galvanised steel channel framing at nominal 1220mm or 610mm
centres (dependant on overall duct dimensions) 50mm x 35mm x 0.6mm nominal size. |
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Hanger support system for cable ladders. |
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Threaded rods and Galvanised steel angles or channels forming
support system for MONOLUX® enclosure. Maximum stress levels
should not exceed 10N/mm² or 6N/mm² for two and four hour
systems respectively. |
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Rock wool, thickness and density depends on fire resistance
performance requirements. |
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MONOLUX® board pads
minimum 100mm x 100mm x cladding thickness to close off gaps around cable tray support hanger (6) |
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240 minutes fire rating
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* For more detail, roll your cursor over the individual numerals in this technical drawing above.
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E & M 1-sided enclosure |
E & M 2-sided enclosure |
E & M 3-sided enclosure |
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Note:
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The rock wool shall be fixed into the underside of the top boards
using screws and mudguard washers (minimum 25mm diameter). Minimum penetration of screws
into the board is 20mm. The screws should be in a staggered grid pattern of 300mm in
both directions.
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An additional row of screws should be included at 50mm from the corners
of the duct spaced at 300mm centres down the length of the enclosure.
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If the enclosure exceeds 600mm in height, additional screws will be
required along the top edge to retain the rock wool panels to the sides of the ducts.
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Where enclosures exceed 1500mm in width, intermediate drop rods are
required at the centre of the span to act as stiffeners. Please consult Intumex Asia Pacific
for details.
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| © Copyright 2010 Intumex Asia Pacific. All rights reserved. |
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