Page 106 - E24 Electrical Notebook

102 - Cable Management

Elegance 170 Aluminium 170 55.5 Shielding Effectiveness
92 36 49
Material Shielding effectiveness (attenuation in dB) measures the ratio between
A the external environment field strength and the field strength after passing
Aluminium trunking is manufactured through any material. This is recorded in a logarithmic scale.
from high precision extruded aluminium B
with a powder coat finish. MT Supertube multi layer conduit systems absorb and reflect emitted
Accessory boxes are supplied in PVC-U A radiation from sources of interference, where an attenuation of 80dB
or polycarbonate, both of which are would reduce the resultant field within MT Supertube by a factor of 10,000.
100% recyclable. 19
Shielding Effectiveness
Dimensions
Attenuation Field Strength
A = 1764mm² total area
A = 794mm² 45% space factor in dB Reduction

Without Accessory 62
B = 4508mm² total area
B = 2028mm² 45% space factor 20 10

With Accessory 36 40 100
B = 1748mm² total area
B = 787mm² 45% space factor

60 1000

GRP Ladder & Tray 80 10000

Material Powertrack

GRP (Glass Reinforced Polyester) has good stability to UV, great Powertrack is an underfloor busbar system rated at 63 Amp maximum.
mechanical strength and is 40% lighter than steel. It is available in Standard or CE (Clean Earth) versions.
GRP is a non-conductive insulating material, resistant to temperatures
from -800ºC to + 1400ºC and has excellent resistance to fire and corrosion Lengths
being self-extinguishing and zero halogen.
Powertrack lengths of 1.2m, 1.8m, 2.4m and 3.6m with tap-off outlets at
MT Supertube 300mm.

MT Supertube provides LSOH (Low Smoke Zero Halogen) polyethylene- Raised Floor Boxes
coated aluminium cable protection for installation where halogen free
products are a requirement. Three and four compartment boxes and a range of grommets that can
be configured to meet client requirements for accessing multiple services
Material concealed below a raised floor system.
Raised floor boxes are third party tested to comply with:
Conduit: A seamless aluminium tube sandwiched between two layers of BS EN 61534-22:2009
extruded LSOH polyethylene. BS EN 60670-1:2005
Fittings: LSOH polycarbonate or cast metal with paint finish (either black BS EN 60670-23:2008
or white). BS EN 50085-1:2005
BS EN 50085-2-2:2008
Internal Polyethylene layer
Material
External Polyethylene layer
Aluminium layer • Lid/trim: flame retardant polypropylene grey RAL 7011
• Box assembly: galvanised steel
• Load plate: 3mm zinc plated steel
• Accessory plate: galvanised steel

Load Testing

Load testing of floor boxes to:
BS EN 61534-22:2009
BS EN 50085-2-2:2008

Marshall-Tufflex Ltd Tel : +44 (0) 1424 856600

Churchfields Industrial Estate Fax : +44 (0) 1424 856611

Hastings

East Sussex Email : sales@marshall-tufflex.com

TN38 9PU Website : www.marshall-tufflex.com