Theory

Cyclic loading with daily, weekly, and yearly load factors
Cyclic loading with daily, weekly, and yearly load factors

Posted on 2016-08-16
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
Phase splitting

Posted on 2016-06-26
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...

Cyclic loading
Cyclic loading

Posted on 2016-06-06
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...

Magnetic fields
Magnetic fields

Posted on 2016-02-22
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...

Cable conductor sizes
Cable conductor sizes

Posted on 2016-01-07
The full range of IEC and AWG conductor sizes and corresponding standard DC resistance values is supported.

Three-core cables belted or screened
Three-core cables belted or screened

Posted on 2015-12-14
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
Armour losses and double-layer armour

Posted on 2015-11-20
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...

Drying-out of soil with multiple systems
Drying-out of soil with multiple systems

Posted on 2015-11-02
The method described in the IEC 60287 standard to calculate buried cables where partial drying-out of the soil occurs is limited to a single isolated cable or circuit only. Cableizer introduced a...

Soil Temperature Calculator
Soil Temperature Calculator

Posted on 2015-04-20
The online soil temperature calculator is based on a simplified mathematical model describing the expected temperature curve in the soil. It is especially useful to estimate the maximum soil...

Calculation of internal thermal resistances of multi-core cables
Calculation of internal thermal resistances of multi-core cables

Posted on 2015-03-27
Interpretation and generalization of the calculation of the thermal resistances of the constituent parts of multi-core cables, as defined in IEC 60287-2-1.

IEC 60287-2: Calculation of thermal resistances of electric cables
IEC 60287-2: Calculation of thermal resistances of electric cables

Posted on 2015-03-18
This blog post discusses the topics covered by IEC standards 60287-2. It specifically emphasizes where and why Cableizer is deviating from the standard.

IEC 60287-1: Calculation of current rating and losses of electric cables
IEC 60287-1: Calculation of current rating and losses of electric cables

Posted on 2015-03-11
This blog post discusses the topics covered by IEC standards 60287-1. It specifically emphasizes where and why Cableizer is deviating from the standard.

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