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Fire and security systems
Technical information
Intumescent (fire barrier) pads
Marshall-Tufflex dry lining boxes are available with
intumescent (fire barrier) pads to comply with the
requirements of BS 7671:2008 IEE Wiring Regulations
and Document B of the UK Building Regulations.
MT Supertube FR Plus performance
WARNING:
The aluminium tube is not suitable to be used as a protective conductor (CPC).
NAIL PENETRATION:
MT Supertube FR Plus complies with requirements for BS 7671, BS 8436 and BS EN 61386.
Electrical
Mechanical
Tube reference
22010/22003 22505/22503
Outside diameter
(mm) OD 20
25
Internal diameter
(mm) ID 15.5
20
Wall thickness
(mm) W 2.25
2.5
Minimum bend radius
(8 x dia)
160
200
Weight per metre
(g)
145
184
Lengths
(m)
100/3
50/3
Suspension distance (maximum)
Horizontal (mm)
1000
Vertical (mm)
1200
Electrical
Electrical breakdown resistance
20,000 V
Temperature range °C
-45 +289
º
C
Thermal expansion coefficient
2.0 x 10-6mm/m/K
Thermal conductivity
0.45 W (mK)
Earth bonding/continuity test results (per fitting)
< 0.05 Ω (0.00256 Ω)
Standards
BS EN 50086-2-1 1996 CLAUSE 12.1
DIN EN 50086-2-1 1995
IEC 601196-1
Fire Performance
Oxygen Index
BS EN ISO 4589-2
46.5%
Flammability Temperature BS EN ISO 4589-3
289
º
C
(Temperature Index)
Annex A
Elemental composition
Lassaigne Sodium Nitrogen
Negative
Fusion
Chloride
Negative
Bromide
Negative
Fluoride
Negative
Sulphur
Negative
Smoke Density
Low Smoke
Conduit Performance (BS EN 50086.1.2)
Cold temperature impact test
Heavy gauge performance
Compression
Low compression
Resistance to flame propagation
Pass
MT Supertube FR Plus – continued
MT Supertube can
be shaped and slow
bends formed by
hand but care needs
to be taken to avoid
kinking.
For tighter radius
bends use compact
hand bender or
inspection elbows
and bends.
8-10mm
Inspection Hole
Stripping Tool 12 – 16mm
Fittings
1. For EMC screening system
a.
Cut the tube squarely to the required length
(Tool No. 20001).
b.
Remove 12-16mm of insulation, taking care not
to cut the aluminium layer (Tool No. 20002).
c.
Push conduit firmly into fitting and secure using
screw located in spout.
d.
Fasten tube with a saddle within 150mm of
spout.
2. For halogen free system
a.
Cut the tube squarely to the required length.
Tool no. 20001.
b.
Apply sealant (20006) to the end of the tube.
c.
Push the tube firmly into the fitting spout.
d.
Fasten tube with a saddle within 150mm of
spout.
Retention screw
Installation
Conduit
