Electricity: conductors and insulators – Insulators – Sectional – multi-part – composite – or coated
Patent
1995-06-07
2000-02-22
Kincaid, Kristine
Electricity: conductors and insulators
Insulators
Sectional, multi-part, composite, or coated
4251291, 264259, 156173, 174148, H01B 1732
Patent
active
06028269&
ABSTRACT:
A composite insulator includes a hollow and tapered core portion composed of fiber-reinforced plastics, and a sheath and sheds composed of an insulating polymeric material integrally molded on the outer surface of the core portion. The core portions of composite insulators for a plurality of voltage classes are formed by using a mandrel assembly in which a plurality of mandrel members are combined. The so-prepared core portion is placed within a mold unit in accordance with the voltage class of the composite insulator to be manufactured, and the insulating polymeric material is poured into the mold cavity to integrally mold the sheath and the sheds.
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Kunieda Shigehiko
Nakajima Isao
Utsumi Yusuke
Cuneo Kamard
Kincaid Kristine
NGK Insulators Ltd.
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