NSHTOEU NSHTOU 4x16mm round festoon cable 4 core tower crane power cable

Application:

Suitable for heavy machinery, such as frequent winding and unwinding with torsional stress, commonly used in transportation and conveyor systems, cranes, mining and rail motors. The neoprene outer sheath protects the cable from ozone and UV radiation as well as oil, acid and other solvents. This cable can be used in dry or wet rooms and outdoors.

Conductor

The conductor classes are divided into nominal cross-sections. The individual conductor classes F，F(xiàn)S and FF and the nominal cross-sections are defined by specification of the maximum diameter of the single wires and by the maximum resistance of the conductor at 20 ℃ Max. diameter of the single wires (mm). Resistance of the conductor at 20 ℃ （Ω/km）. Electrolytic copper,tinned, very finely stranded，（Extremely finely stranded DIN VDE 0295 Class 6）

Compounds

Nowadays, the insulating and sheathing compounds of flexible electric cables are made almost exclusively of elastomeric materials. Thermoplastic materials have not been widely accepted. The great advantage of elastomers under heavy-duty operating conditions lies in their very good mechanical properties,such as reversible(elastic) force-elongation characteristic and their high resistance to abrasion and tear propagation. In addition, these compounds are excellently suited for unrestricted use outdoors. They are characterized by their good resistance to the weather, temperature variations,chemicals and their flame retardance. The elastomer EPR/EPDM with its high resistance to ozone and UV and its superior flexibility under cold conditions combined with excellent electrical characteristics is worthy of special mention as an insulating material. The tough , flame-retardant and weather-resistant PCP is a tried-and-tested sheathing compound for flexible electric cables.

Tensile loads

The tensile loads of copper conductors in flexible electric cables for cranes and material handling equipment as specified by DIN VDE 0298,Part 3,should not exceed 15N/MM2. The maximum permissible tensile load for installing fixed laying flexible cables is 50N/MM2. referred to the cross-section of the conductor. Flexible electric cables for cranes and meterial handling equipment are generally not designed for torsional stresses. The latter can,however,not be avoided during operation.