User manual PowerBus Leads 1.5mm 90cm
12 PowerBox-Systems − World Leaders in RC Power Supply Systems
4. POWERBUS CABLE
PowerBUS cable is manufactured specially for PowerBox-Systems. The Power-
BUS cable is extremely exible, and is made up using very thin individual strands
in order to pass the maximum current through the given cross-sectional area of
1.5mm
2
. The insulation is made of a special material which is also employed in
full-size aviation. lt is virtually indestructible, and offers excellent protection even
when reduced to just a thin lm around the copper conductor. This insulation pro-
duces a weight reduction of about 30% compared with the much cheaper PVC.
The insulation is not inammable, and its heat resistance is much higher than the
usual PVC.
To save more weight, the conductors are of different thickness: power is carried by
two thick wires (1.5mm
2
), while a thin wire of 0.25mm
2
is used for the signal. This
produces a further weight saving of 27%.
The picture clearly shows the thin insulation, the ne individual strands, and the
difference in cross-sectional area between the power and signal wires.