Download Vision Cable - Phase to Phase
Transcript
2 09-150 pmo ............................................................................................................................................. 43 Results General ........................................................................................................................................................... 43 Export ........................................................................................................................................................... 45 ............................................................................................................................................. 46 Extra 47 Cable type........................................................................................................................................................... editor 49 Example ..................................................................................................................................................... single-conductor XLPE cable ..................................................................................................................................................... 51 Example three-conductor XLPE cable ..................................................................................................................................................... 53 Example three-conductor PILC cable Langauge ........................................................................................................................................................... 55 Options ........................................................................................................................................................... 55 5 IEC Background ........................................................................................................................................................................... information 59 5.1 5.1.1 5.1.2 5.1.3 5.1.4 5.1.5 Cable model ........................................................................................................................................................................ 59 ................................................................................................................................................................. 59 Cable construction Cable losses ................................................................................................................................................................. 62 ................................................................................................................................................................. 62 Thermal resistances ................................................................................................................................................................. 63 Calculation model ................................................................................................................................................................. 64 Temperature scheme 5.2 65 Calculation of........................................................................................................................................................................ continuous current rating 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.3 5.3.1 5.3.2 5.3.3 Cable types ................................................................................................................................................................. 66 ................................................................................................................................................................. 66 Bonding 66 Environmental................................................................................................................................................................. factors Drying of soil ................................................................................................................................................................. 67 67 Installation in................................................................................................................................................................. air ................................................................................................................................................................. 68 Installation under ground ........................................................................................................................................................................ 70 Dynamic current calculation ................................................................................................................................................................. 71 Transient temperarture response ................................................................................................................................................................. 72 Maximum step current Cyclic current ................................................................................................................................................................. 73