Water cooled hollow core cables

with soldered cable heads preferably for medium frequency up to 10 kHz

Hollow core cables in standard design
 

Soldered cable head with conductors
wound around a spring core

Construction and application

The used conductor ropes, with their large surfaces, and the construction of our water cooled hollow core cables offer an optimized water flow and therefore an excellent cooling of the cables. Caused by their constructive characteristics they are well suited for high current transmission in the field of medium or higher frequencies. Two series are standard. For applications up to 2000 hertz with uncoated or on request also tinned standard ropes and for applications up to 10000 hertz with stranded special ropes made out of individual enamelled wires. All conductors with bigger cross-sections are wounded around a non magnetic spring core. This construction allows water to flow also through the centre of the cable and enable so an optimized cooling. Such cables are mainly used in the field of induction plants or induction furnaces.

Connectors and cooling

All standard connectors/cable heads are manufactured out of E-copper material and are connected with the conductor ropes by soldering. Caused by the constructive characteristics hollow core cables offer a better cooling and water flow compared with single conductor cables.

Coolant water connection holes / hose nipples

Thread holes of a sufficient size are made in the connectors to hold hose nipples. The cable is delivered without nipples as standard. These can be additionally ordered as accessories according to our catalogue page 50. It is also possible to set the cooling holes at other orientations than the standard or to change the thread size.

Coolant water hoses

The flexible coolant water hoses we use are fitted with additional heat protection against radiated heat and liquid metal splashing. The hose casing is flame retardant and self-extinguishing. The breakdown rating is 6 kV/mm. The maximum allowed operating pressure for the cables is 6 bar. All cables are tested with a pressure of 10 bar before leaving our factory.

Hollow core cables for pipe connections

To connect water cooled cables with pipe systems of power leading tubes or with tubing connectors of contact plates cables with special power leading connectors are needed. We deliver such cables equipped with connectors on one or both sides for standard applications with frequencies up to 2000 hertz and for tube diameters up to 70 mm. Material of the standard connectors is brass. Other materials on request.

Special designs and cable repairs

In addition to our standard designs, we also manufacture all cable cross-sections with connectors, as well as offering customised designs ( e.g. replacement parts for all common electro-furnaces from the well-known manufacturers). We also undertake cable repairs at short notice, both for our cables and those of other manufacturers.