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BECAUSE IT'S OUR ENVIRONMENT
SWITCH TO SILENT MODE - NOISE-REDUCED SPECIAL OVERHEAD CONDUCTORS
In order to satisfy the requirements for modern and environmentally-friendly methods of electrical energy transmission, LUMPI-BERNDORF has set new milestones with its noise-reduced special conductors.
Increased marginal field intensities, generally when combined with wet weather conditions, lead to noise emissions at high and/or low frequencies and therefore sometimes to disruptive noises.
Depending on the requirements in the customer's specification, either hollow conductors, surface-treated special conductors or a combination of the two are the first choice for reducing these noises.
HYDROPHILIC SURFACE
As a measure to effectively combat disruptive corona discharges in high-voltage overhead lines, LUMPI-BERNDORF has developed a process that is gentle on the material and gives a hydrophilic surface. Noise development can only be reduced to a minimum by increasing hydrophilicity.
Among other things, LUMPI-BERNDORF has been involved in the "CONOR" (Corona Noise Reduction) project run by ETH Zürich and various project partners since 2004, and can therefore look back on many years of experience in the area of surface treatments for overhead conductors.
LARGER DIAMETER – SAME WEIGHT
The hollow conductor offers an optimal solution, especially for overhead line areas where noise is a sensitive issue. A hollow area in the centre of the conductor makes it possible to increase the conductor diameter without altering the weight, while complying with the mechanical and electrical properties of the original conductor.
The resulting advantages, such as the reduction in marginal field intensity, have a direct impact on the reduction of corona discharges. Any disruptive visual effects of this larger conductor can be kept to a minimum through the use of a camouflage conductor version.
More information on SURFACE TREATMENTS FOR OVERHEAD CONDUCTORS I HOLLOW CONDUCTORS
CAMOUFLAGE CONDUCTORS - COATED OVERHEAD CONDUCTORS
PERFECTLY ADAPTED TO THE ENVIRONMENT
LUMPI-BERNDORF considers the constant requirements of environmental protection and offers conductors with a special colour coating. The camouflage conductors are used in sensitive areas where any negative visual impact on the surroundings should be avoided so as to protect the environment.
The camouflage conductors from LUMPI-BERNDORF help to influence approval procedures under environmental law in a positive manner.
More information on COATED OVERHEAD CONDUCTORS
INCREASING CAPACITY
GREATER CAPACITY THROUGH INCREASING TRANSMISSION PERFORMANCE
THERMAL RESISTANCE FOR THE MOST STRINGENT REQUIREMENTS
During periods when there is limited availability of overhead line routes, changed load flows within the grid or supply from new and/or alternative power plants, existing overhead lines must be uprated with higher-performance conductors. LUMPI-BERNDORF has specialised in this area with thermal resistant overhead conductors.
As far back as 1984, LUMPI-BERNDORF was the first European manufacturer to carry out tests with thermal resistant overhead conductors, and subsequently put these into production.
Developed for optimum transmission performance with improved sag, it is predominantly the starting materials and clever conductor design that guarantee problem-free continuous operation up to 210 °C and short periods of operation up to 240 °C.
More information on SPECIAL OVERHEAD CONDUCTORS