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Cyclic loading with daily, weekly, and yearly load factors

Posted on August 16, 2016

Using the Neher McGrath method for the calculation of the rating of buried cables under cyclic loading conditions allows for a daily, weekly, and yearly load factor in the same calculation.


Phase splitting

Posted on June 26, 2016

Phase splitting can be used to drastically reduce the magnetic fields of buried power cables. Also, the conductor cross-section can be less than half because the current is only half per split system and it can give a partial redundancy of about 60% or even more in case of a cable failure on one split system.


Cyclic loading

Posted on June 6, 2016

For the calculation of the rating of buried cables under cyclic loading conditions two main methods are used: The method according to IEC 60853 and the Neher McGrath method. The following post explains briefly the theory behind it and points out the additional features available in Cableizer.


Magnetic fields

Posted on February 22, 2016

Cableizer calculates the magnetic fields of multiple systems with different frequencies and load-flow directions. The magnetic field strength is diagrammed as impressive and meaningful two-dimensional color-map with contours of selected values and additionally in the classic, simple one-dimensional distribution over ground. Once more, this great new feature has been included without additional costs for our customers.


Cable conductor sizes

Posted on January 7, 2016

The full range of IEC and AWG conductor sizes and corresponding standard DC resistance values is supported.


Three-core cables belted or screened

Posted on December 14, 2015

Modelling and calculation of the internal thermal resistance and ampacity of 3-core belted cables and screened cables with fillers.


Armour losses and double-layer armour

Posted on November 20, 2015

The IEC standard 60287-1-1 describes methods to calculate the armour loss factor but does so for one layer of armour only. Other ampacity calculation programs allow the user to model as well only one layer. This poses a certain problem to correctly calculate the losses of a cable with two armour layers such as submarine cables or certain three-core cables. In addition, Cableizer offers some further improvements in calculating armour losses as compared to its competitors or the IEC standard.