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TECHNICAL INFORMATION
Technical information
260 |
Underfloor to desk
Electrical Characteristics
Rated Current
63
Amps
Rated Voltage
230
Volts
Frequency
50/60
Hz
Conditional Short Circuit Rating
(Protection device:BS1361 fuse)
16
KA
Conductor Resistance Line
& Neutral
4.4
mΩ/m
Volt Drops Line & Neutral
Powertrack
4.4
mV/A/m
Feed Unit + Coupler
2.2
mV/A
Tap-Off
0.73
mV/A
4mm² Cable
11.0
mV/A/m
Coupler
1.5
mV/A
Interlink Unit
4.5
mV/A
16mm² Cable (1.2m)
3.9
mV/A/m
Earth Fault Loop Impedance:
Line to Earth (Casing)
2.8
mΩ/m
Line to Earth (Conductor)
3.2
mΩ/m
Line to Earth (Conductor + Casing)
2.8
mΩ/m
Feed Unit + Coupler
2.2
mΩ
Tap-Off
0.73
mΩ
4mm
2
Cable
11.0
mΩ/m
Coupler
1.5
mΩ
Interlink Unit
4.5
mΩ
16mm
2
Cable
3.9
mΩ/m
Mechanical Data
Number of Copper Conductors
2 or 3
Conductor Cross-section Area
Nominal
20
mm²
Powertrack Casing Copper Equivalent
(Where casing is protective Earth)
12
mm²
Cable Termination Capacity
16
mm²
Tap-Off Cable 32A
4.0
mm²
Tap-Off Cable 13A or 16A
4.0
mm²
Tap-Off Conduit Sizes
Rating: Heavy duty conduit
<1KN Tensile Load to BS EN 61386-23 Ø20
mm
Flexible Interlink Cable
16
mm²
Flexible Interlink Conduit
Rating: Heavy duty conduit
<1KN Tensile Load to BS EN 61386-23 Ø25
mm
Feed Conduit Entry
1 x Ø25 mm
IP Rating
40
Minimum void depth (track + tap-off)
59
mm
Materials specification
Powertrack Casing
Galvanised Steel
Conductors
High Conductivity Copper/brass
Powertrack Insulators
PBT
Sockets/Tap-Off Plug/Joint Mouldings
Polycarbonate
Shutter
PBT
Tap-Off/Interlink Flexible Conduit
Galvanised Steel
Tap-Off Cable
BASEC BS6004 H07V-R
Tap-Off/Coupler Blade
Copper
Feed Unit Case
Galvanised Steel
Flexible Interlink Cable
BASEC BS6004 H07V-R
Feed/Flexible Interlink Housing
Galvanised Steel
Technical Specifications
Third party certified and tested to
comply with:
BS EN 61534-1: 2011
BS EN 61534-22: 2009
BS 5733: 1995 where applicable.
Marshall-Tufflex is registered by
BSI to BS EN ISO9001: 2008
MT Powertrack is designed to
comply with the requirements of BS
7671: 2008 (IEE Wiring Regulations).
ASTA Type Test Certification
Powertrack is independently tested by
Intertek to BS EN 61534-22:2009 clauses
15.4,18.4.3.2, & 18.4.3.3
Regulation 543.7
Installations to BS 7671:2008
Earthing requirements for
the installation of equipment
having high protective/
conductor currents.
The scope of Reg. 543.7.1.203 requires
that every final circuit intended
to supply one or more items of
equipment, where the total protective
conductor current is likely to exceed
10mA. in normal use, shall have a high
protective connection.
All MT Powertrack tap-off units
conform to the high integrity
protective requirement by virtue of
using a protective conductor of 4mm²
enclosed within a flexible conduit, thus
providing additional protection against
mechanical damage.
Regulation 543.7.1.203.
32Amp 3 metre tap-off unit
The 32Amp tap-off unit comprises of
an unfused tap-off* a flexible metal
conduit with integral 4mm² conductors.
These units are designed to
comply with regulation 434.2.1(i) of
BS 7671:2008 by virtue of the following:
1 Maximum length of
cable is <3 metres.
2 Minimum risk of faults as the item is
factory assembled and fully tested.
3 Fully protected by flexible steel
conduit located within raised access
floor that offers further protection.
*Fused 3 metre tap-offs are available if
required.
5 metre tap-off unit
Tap-off units in excess of 3 metres
should only be used if they contain a
fuse or the powertrack is protected by
a 32Amp rated protective device.