IEC Power cables with extruded insulation and their accessories for rated voltages above kV (Um = kV) up to kV (Um = kV) – Test. Find the most up-to-date version of IEC at Engineering Buy IEC EN+(REDLINE+VERSION) POWER CABLES WITH EXTRUDED INSULATION AND THEIR ACCESSORIES FOR RATED VOLTAGES .
|Published (Last):||19 May 2015|
|PDF File Size:||13.47 Mb|
|ePub File Size:||4.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
Skip to main content. Log In Sign Up.
HIGH VOLTAGE XLPE CABLE SYSTEMS de for kV | Rocky Dark –
Since then production and material technology have improved significantly, providing reliable 620667 maintenance-free products to the utility industry. At present, numerous high voltage XLPE cable systems with nominal voltages up to kV and with circuit lengths up to 40 km are in operation worldwide.
Cable systems are equipped with accessories, which have passed the relevant type tests pursuant to national and international standards, such as long-duration tests.
Modern XLPE cables consist of a solid cable core, This test required one year of operation, along a metallic sheath and a non-metallic outer with the thermal monitoring of all cables, joints covering. 26067 cable core consists of the and terminations installed. It was successfully conductor, wrapped with semiconducting tapes, completed at CESI Laboratory in Milan, Italy in the inner semiconducting layer, the solid main These three lec layers are extruded in one process.
The conductor of high voltage cables can be made of copper or aluminium and is either round stranded of single wires or additionally segmented in order to to reduce the current losses. The main insulation is cross-linked under high pressure uec temperature.
The metallic sheath shall carry the short-circuit current in case of failure. It can be optionally equipped with fibers for temperature monitoring. Optionally it can be extruded with a Test Setup of Prequalification Test semiconducting layer for an after-laying test and additionally with a flame-retardant material for As one of just a few providers worldwide, Brugg installation in tunnels or buildings if required.
Cables can offer a broad range of both XLPE cables up to kV and oil-filled cables up to kV as well as their accessories. Cable selection process This broad product range together with a application.
Additionally, our consulting engineers systematic analysis of the technical requirements can assist you in the development of customized enables the user to find the right solution for every solutions.
The service life has many years of experience and investigation of a cable is defined as its operating time. It is together with extensive experience in the field of influenced by the applied materials, the cable systems gained over 6267 years.
Installation in tunnels, trenches or ducts All installations in soil, especially in locations with shallow ground water level Special application: Some of these are listed below. Iex frequently used standards are: IEC Guide to the selection of high-voltage cables.
IEC Conductors of insulated cables. IEC Tests on cable oversheaths which have a special protective function and are applied by extrusion. IEC Electric cables — Calculation of the current rating. IEC Tests on electric cables under fire conditions. IEC Common test methods for insulating and sheathing materials of electric cables.
Test methods and requirements. IEC Calculation of the cyclic and emergency current rating of cables. European Committee for Electrotechnical Standardisation. Special features in design 620067 occur depending on national conditions. Part 1- General test requirements. Part 1 is based on IEC and follows that standard closely. HD is completed with a number of parts and subsections for different cables intended to be used under special conditions which can vary nationally in Europe.
Single-end bonding or Cross-bonding Values apply for cables with rated voltages from kV to kV acc. Remember me on this computer. Enter the email address you signed eic with and we’ll email you a reset link. Click here to sign up. Help Center Find new research papers in: