Nexans NX600 Alsecure Cable : Fire Resistant, Low Smoke & Halogen Free Cables

By Chris Dodds on 16th November, 2015

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Nexans NX600 Alsecure Cable : Fire Resistant, Low Smoke & Halogen Free Cables

Low Voltage Fire Resistant Power Cable.

Nexans Alsecure NX600 fire resistant power cable is ideal for fire safety engineering systems in large multi-storey and complex buildings.

Nexans NX600 is a low smoke, halogen free and fire resistant cable which is designed to meet the requirements of the BS8491 fire test which simulates direct impact and also the effects of a high pressure water hose along with a continuous flame.

BS8491 is the British Standard regulating the method for assessment of fire integrity of large diameter power cables for use as components for smoke and heat control systems and certain other active fire safety systems

Pictured: Nexans NX600 Alsecure Fire Resistant Cable

Nexans NX600 Alsecure SWA Fire Resistant Cable

 

Overcoming Fire Safety Cable Challenges

The increased scale and complexity of building design and architecture has made safe evacuation of the public during a fire evermore complicated.

The compounds and materials used in cable construction further complicate evacuation. Traditional cables propagate flames and release hazardous fumes when they burn, this relates especially to halogenated PVC sheathed cables. 

Fumes released during a fire can be more dangerous to human life than the flames themselves. The gases cause drowsiness, affect breathing and eventually cause death. For this reason, some installations require cables which will release low levels of smoke which is halogen free, and therefore non-toxic to humans.

Nexans Alsecure NX600 fire resistant cable is approved for 30, 60 and 120 minutes applications as detailed in BS8519 (Selection and installation of fire-resistant power and control cable systems for life safety and fire-fighting applications) and can be used in a vast variety of systems in building such as fire-fighting and evacuation lifts, sprinkler systems and wet riser pumps.

The Nexans fire resistant cable is also approved by both LPCB and BASEC to meet the requirements of BS7846-F120 to maintain circuit integrity in the event of a fire.

LPCBBASEC

Nexan's NX600 cable is available for sizes up to and including 35sqmm with circular conductors or 50-330sqmm with sector shaped conductors.

The steel wire armour (SWA) is a single layer of galvanised steel wires and the cores are identified by colours and covered with an extruded layer of polymeric compound.

NX600 Alsecure is specified for use in stadia, airports, hospitals, universities, hi-rise offices, residential and public building.

In the rail industry, fire resistant cables provide low voltage power distribution in and around train stations and security systems (video, ventilation, breakdown, emergency lighting).

NX600 Fire Resistant Cable For Large Multi-Storey & Complex Buildings

Nexans NX600 Alsecure Cable - Features & Benefits
Standards
Fire Resistance BS 8491 120 min
Flame Propagation BS EN 50266-2-4, IEC 60332-3-24
Smoke Emission BS EN 61034
Design BS 7846
Certification Certified by BASEC and LPCB
Characteristics
Conductor Material Copper
Conductor Flexibility Standard Class 2
Cable Insulation XLPE & Mica Tape
Cable Outer Sheath LSF
Colour Black
Cable Inner Sheath Halogen Free Compound
Rated Voltage Uo/U (Um) 0.6/1kV
Minimum Installation Temperature 0ºC
Maximum Operating Temperature 90ºC
Short-Circuit Maximum Conductor Temperature 250ºC
Fire Resistant BS 8491-120
Flame Retardant IEC 60332-3 Cat.C

 

 

Nexans NX600 Alsecure Cable - Product Range
3 Core Cable

Cross Section

sqmm

Approx Insulation Thickness mm Nominal Armour Wire Diameter Approx Sheath Thickness mm Approx Overall Diameter mm Approx Cable Weight kg / km Max Conductor Resistance at 20ºC Min Bend Radius
4 0.7 1.25 1.4 20.0 520 4.61 6D
6 0.7 1.25 1.4 20.0 600 3.08 6D
10 0.7 1.25 1.5 20.0 910 1.83 6D
16 0.7 1.25 1.6 22.0 1150 1.15 6D
25 0.9 1.6 1.7 26.0 1650 0.727 6D
35 0.9 1.6 1.8 28.0 1850 0.524 6D
50 1.0 1.6 1.8 31.0 2500 0.387 8D
70 1.1 1.6 1.9 34.0 3100 0.268 8D
95 1.1 2 2.1 39.0 4450 0.193 8D
120 1.2 2 2.2 42.0 5250 0.153 8D
150 1.4 2.5 2.3 47.0 6650 0.124 8D
185 1.6 2.5 2.4 51.0 8050 0.0991 8D
240 1.7 2.5 2.6 56.5 10050 0.0754 8D
300 1.8 2.5 2.7 62.0 12150 0.0601 8D
4 Core Cable

Cross Section

sqmm

Approx Insulation Thickness mm Nominal Armour Wire Diameter Approx Sheath Thickness mm Approx Overall Diameter mm Approx Cable Weight kg / km Max Conductor Resistance at 20ºC Min Bend Radius
4 0.7 1.25 1.4 20.0 610 4.61 6D
6 0.7 1.25 1.5 20.1 890 3.08 6D
10 0.7 1.25 1.6 23.5 1020 1.83 6D
16 0.7 1.25 1.6 24.5 1300 1.15 6D
25 0.9 1.6 1.7 28.0 1900 0.727 6D
35 0.9 1.6 1.8 31.0 2430 0.524 6D
50 1.0 1.6 1.9 33.5 3100 0.387 8D
70 1.1 1.6 2.1 40.0 4400 0.268 8D
95 1.1 2 2.2 44.5 5600 0.193 8D
120 1.2 2 2.3 48.0 7100 0.153 8D
150 1.4 2.5 2.4 57.5 8600 0.124 8D
185 1.6 2.5 2.6 60.0 10200 0.0991 8D
240 1.7 2.5 2.7 63.5 12800 0.0754 8D
300 1.8 2.5 2.9 69.5 15500 0.0601 8D

 

T&D are specialist distributors of fire resistant cable accessories including Ellis Patents Phoenix Cable Cleats, SPS Fire Resistant Cable Joints and Abtech Fire Rated Junction Boxes.

 

  • Further Reading :

33kV Nexans Offshore Cable Terminations Into Ormazabal Panel

Nexans - High Voltage HV Test Rod Kits For Screened Separable Connectors

 

 

Video Playlist: Nexans Euromold Cable Connectors, Joints & Terminations

 

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Nexans NX600 Alsecure SWA Fire Resistant Cable





Category:  LV Cable Jointing & Terminating

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