Infrastructure Cables

We know that nothing can happen without electricity. This is why LAPP infrastructure cables are so indispensable. Our portfolio includes installation cables, power cables and medium-voltage cables. The products are essential for in-wall cabling in private, public and industrial buildings and for energy distribution via underground distribution networks.

Regardless of the type of energy, it must journey from where it is generated to where the user requires it. Infrastructure cables take on this task. These are therefore cables for distributing or supplying energy. As standard, they supply residential or industrial buildings with electricity (house supply, entry and distribution) and distribute energy from distribution networks to the buildings.

Most products in this field can be laid underground and are therefore considered cables rather than wires

Medium-voltage cables distribute energy in local grids of energy supply companies or in larger Industrial plants that operate with medium voltage. The LAPP medium-voltage cables are available in the voltage classes 6/10 kV, 12/20 kV or 18/30 kV and are produced with different insulation thicknesses and conductor cross-sections up to 1000 mm². They are installed fixed in water, air or earth. The cross-linked conductive layers above and below the core insulation prevent partial discharges and enable constant operational safety.

Relevant standard: DIN VDE 0276-620

A cable for direct burial is a cable suitable for underground installation. This designation underlines its direct burial suitability properties. Its robust outer sheath provides special mechanical protection against damage caused, for example, by sharp-edged stones and the ingress of water or chemical substances. Cables for direct burial must be installed deep underground, depending on aspects such as their nominal voltage. Depending on their usage purpose, they are also pulled through conduits, covered with sand and/or additionally protected with warning tape and plastic plates.

Important: Depending on the type of cable for direct burial, it is either suitable for power supply or signal transmission. The cables for direct burial from the infrastructure cable product group are used exclusively for power supply.

Since large conductor cross-sections require a lot of conductor material, some power cables and medium-voltage cables use the light metal aluminium instead of copper. Aluminium conductors are cheaper and lighter than copper conductors. However, they do not conduct the current quite as well. That being said, using conductor cross-sections one or two sizes above what is required for copper conductors will allow them to achieve the same conductivity as copper. Copper conductors therefore have a higher current rating and a lower voltage drop compared to aluminium conductors and measured at the conductor cross-section.

Our insulated copper or aluminium conductors are single-wire or multi-wire, round or sector-shaped (RE = single-wire round conductor, RM = multi-wire round conductor and SM = multi-wire sector conductor).

Suitable accessories