Customised Solutions in High Voltage Contact Technique

Jointing and connecting of high voltage cables by means of bolted contacts meanwhile is state of the art. Longterm experience in welding and compressing is more and more replaced by mechanical connectors or mechanical top bolts. Today, advantages of fast, simple, and safe installation by means of screw-type connections are also valued in high voltage applications.

A speciality in high voltage contact technique is the high voltage conductor itself, different from medium voltage or low voltage conductors in construction and cross section. Solid or stranded round conductors made of copper or aluminium are typical.

Especially the Milliken- or RMS-conductor is unusual, because its special sectorial construction requires a particular arrangement of contact bolts. The round conductor consists of several sectors insulated towards each other.
This construction reduces conduction losses which occur by the skin effect, specially so on large cross sections.

Also typical for high voltage are large cross sections. Although small cross sections such as 95 mm² are used as well, cross sections up to 3200 mm² prevail. With cross sections above 1200 mm², also Milliken-Conductors can be found.

Mechanical connectors and top bolts for high voltage are to be dimensioned precisely for its conductor and joint or termination. Only this way it is possible to control electric fields of voltages above 70 kV, and to secure continuous prevention of joint destruction by partial discharge. These features can only be provided by customised and individual design and production, mostly in small production lots.

ARCUS Schiffmann is able to design, produce, and supply on schedule such individual contact elements on short notice, customised to meet project requirements. For this purpose we stock the raw material, and offer design know-how and ultra-modern CNC-production machines.

We look forward talking to you!