Low voltage casing

The embodiment of the utility model provides a low voltage casing which comprises an upper porcelain bushing and a lower porcelain bushing. The upper porcelain bushing comprises 2 umbrellas with the umbrella size of 100mm. The thickness of the inner wall of the lower porcelain bushing is 20mm. The h...

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Bibliographische Detailangaben
Hauptverfasser:	LONG GUZONG, TANG JIFU, TAN GUANGZHONG, LIU HUI, HUANG DENGWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CONDUCTORS ELECTRICITY INSULATORS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:	The embodiment of the utility model provides a low voltage casing which comprises an upper porcelain bushing and a lower porcelain bushing. The upper porcelain bushing comprises 2 umbrellas with the umbrella size of 100mm. The thickness of the inner wall of the lower porcelain bushing is 20mm. The height of the low voltage casing is 130mm to 135mm. According to the embodiment of the utility model, the low voltage casing can meet the requirements of 5kV rated voltage, 800A current and 18.5kV power frequency withstand voltage; and in addition, the actually designed creepage ratio distance of the low voltage casing is 29.6mm/kV, which can meet the filthy III grade requirement.