l. The conductor is seven stranded copper conductors.
2. The insulation is PE, and the thickness is calculated according to the insulation thickness of the computer cable of the same section.
3, pairing pitch: 0.5mm2 and below ≤60mm; 0.5nun2 above 1.5mm2 below ≤70mm;
2.5mm2≤80mm.
4, cable assembly pitch is less than 14 times the cable diameter.
5, shielding: single pair of cable is double shielded, the inner layer of the shield is colored Aluminum Foil , and the metal side is outward, the outer layer is tinned copper mesh, the density is 80%, while dragging a copper wire in the braiding layer Ground wire (7/0.20mm).
The pairs of cables are screen + total screen, the shield is colored aluminum foil, and a copper wire ground wire (7/0.20mm) is dragged in the shield to ensure that the metal surface of the aluminum foil is in close contact with the ground wire. The total shield is a tinned copper mesh braided with a shielding density of 80%.
6. Outer sheath: The field bus adopts orange flame retardant PVC outer sheath.
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