The system is based on 2 paralell 5x50 mm flatbars top and bottom.
Between the flatbars, cross over supports are attached, to which the wires are anchored.
The flatbars can be made of either stainless steel or powder coated mild steel.
The cross-overs come in two different styles, see abow.
The style to the left is attached with two countersunk M6 screws.