Neskeb Wires & Cables
Neskeb Wires & Cables
Neskeb Wires & Cables
Standard

BS 7629

Conductor

Annealed Copper to BS 6360.

Earth Conductor

Tinned Annealed Copper to BS 6360

Insulation

Silicon Rubber Type EI 2 to BS 7655.

Sheath

Zero Halogen, Low smoke, Type LTS 3 to BS 7655.

Heat Barrier

Mica/glass woven tape

Electrostatic Screen

Aluminium / Polyester Tape

Circuit integrity performance as to resistance to fire alone, to fire with water and fire with mechanical shock.
Low Smoke and Fume
Corrosive Gases
Flame propagation
Flame Test
Halogen Free
Voltage Rating

300/500 V

Operating Temp

- 30°C to +90°C

Short Circuit Temp.

250°C

Test voltage

2000 V

Cross-Section, mm2

1

1.5

2.5

4

Conductor Resistance at 20° c, ^ /km

18.1

12.1

7.41

4.61

Conductor Resistance at 20° c,  m^.km

350

300

300

250

Capacitance, pF/m -             Core / Core:

                                                  Core / Screen:

100

110

130

160

170

190

220

270

Standard Packing : Coils 100, 200,500 and 1000 m

Core Identification
2 Core Red, Black
3 Core Red, Yellow, Blue
4 Core Black, Red, Yellow, Blue
Multicore Yellow with Numbering Print
Sheath Red, White, Orange, Black
Numbers of Cores Cross-Sectional Area Conductor Construction Insulation Thickness Size of Earth Wire Overall Diameter (Approx) Net Weight (Approx)
Nr mm2 Nr/mm Mm Nr/mm mm Kg / km
             
2 1.0 1/1.13 0.6 1/1.13 8.0 75
1.5 1/1.38 0.7 1/1.38 8.5 100
2.5 1/1.77 0.8 1/1.77 10.5 140
4.0 7/0.85 0.8 7/0.85 12.5 210
             
3 1.0 1/1.13 0.6 1/1.13 8.0 90
1.5 1/1.38 0.7 1/1.38 9.5 120
2.5 1/1.77 0.8 1/1.77 12.0 180
4.0 7/0.85 0.8 7/0.85 13.5 260
             
4 1.0 1/1.13 0.6 1/1.13 9.0 110
1.5 1/1.38 0.7 1/1.38 10.5 150
2.5 1/1.77 0.8 1/1.77 13.0 220
4.0 7/0.85 0.8 7/0.85 15.0 320
             
7 1.0 1/1.13 0.6 1/1.13 11.0 160
1.5 1/1.38 0.7 1/1.38 12.5 220
2.5 1/1.77 0.8 1/1.77 15.0 330
             
12 1.5 1/1.38 0.7 1/1.38 16.0 350
2.5 1/1.77 0.8 1/1.77 20.0 540
             
19 1.5 1/1.38 0.7 1/1.38 19.0 510
2.5 1/1.77 0.8 1/1.77 24.0 780

 

Current Rating & Voltage Drop
Conductor cross-sectional Area Clipped direct In cable tray
One twin cable One three or
four core cable
One twin cable One three or 
four core cable
Current rating Voltage drop Current rating Voltage drop Current rating Voltage drop Current rating Voltage drop
mm2 A mV / A/m A mV / A/m A mV / A/m A mV / A/m
1.0 18 45 16 40 17 45 15 40
1.5 24 30 20 26 22 30 20 26
2.5 32 19 30 16 30 19 26 16
4.0 44 12 40 10 40 12 35 10

 

Rating Factors
For Ambient Temperature
Temp., oC Factor 35 40 45 50 55 60 65 70
0, 95 0, 91 0, 85 0, 8 0, 74 0, 67 0, 6 0, 52
For Grouping
Cables, Nr Factor 2 3 4 5 6 10 14 18
0, 80 0, 70 0, 65 0, 60 0, 57 0, 48 0, 43 0, 39
Alarm Systems
Emergency lighting
Building management systems
Public address systems
Shopping centres
Hospitals
Airports
Oil and gas fields
Marine
Education centres
Public entertainment centres