8 B&S Twin Sheath Battery Cable
Genuine Australian made TYCAB Twin 8 B&S battery and starter cable, ideal for use in dual battery systems, caravans or any other auxiliary power application up to 59.2 amp*
Part # Prefix: C2TS-8
Sheath Colours: Black, Red
Lengths: Cut to length by the metre up to 30m and also available in 50m reels.
* Refer Specifications and derating factors
AMP Rating at 30°C:59.2 amp (JASO D609 derating factors apply)
Tycab Code: AWC296032
Nearest AWG: 8
Strand #/Size: 96/0.32
Nominal Area: 7.71mm²
Insulation Thickness: 0.9mm
Sheath Thickness: 0.8mm
Electrical Resistance at 20°C: 2.4ohm/km
Nominal O.D.: 7.1mm×12.5mm
Mass (kg/100m): 22
Conductor: OXYGEN FREE Plain Copper Wire to AS/NZS 1125
Insulation: V90 degrees Celsius PVC to AS/NZS 3808
Derating Factors for Ambient Temperatures °C per JASO D609
As the ambient temperature increases, the current capacity of the cable decreases as per the following chart.
Ambiebt Temperature °C = Derating Factor for Twin 8 B&S
30°C = 100% capacity (59.2amp)
40°C = 90% capacity (53.3amp)
50°C = 76% capacity (45amp)
60°C = 60% capacity (35.5amp)
70°C = 45% capacity (26.6amp)
Download Sizing Guide
Voltage Drop for Twin 8 B&S Cable:
To calculate the voltage drop of Twin 8 B&S copper cable, use the following formula:
Voltage Drop = Length x Current x 0.017
Length = Total length of cable in metres.
Current = Current draw (amps) through the cable.
Area = Cross sectional area of the copper (in this case 7.71mm²)
Formula only applies to copper at 25°C, voltage drop increases with both ambient and cable temperature, at approx 0.4% per °C.
0.017 - This multiplication factor only applies to copper
Example for Twin 8 B&S:
How much voltage drop over 10m of Twin 8 B&S with a current draw of 59A?
- 10m x 59A x 0.017 = 10.03
Divide this by 7.71 (cross sectional area of 8 B&S - mm²)
You will have a drop of approximatley 1.3 Volts over the 10m length