Utilization of Birbhum China Clay, West Bengal for Manufacturing of Electrical Porcelain Insulators

Author(s):  
Gobinda Pahari ◽  
Paulami Gupta ◽  
Uttam Kumar Sarkar ◽  
Debjyoti Ray ◽  
Sukanta Garai ◽  
...  
Author(s):  
Okolo Chidiebere Cajetan ◽  
Ezechukwu O.A. ◽  
Olisakwe C.O. ◽  
Ezendokwelu C.E. ◽  
Umunna Chike

In this thesis, the characterization of electrical porcelain insulators based on local clays has been investigated. Test samples were made by varying the quantities of feldspar and silica required to form a mouldable plastic body with each clay sample. The clay samples were bisque fired which is to 900°C and glazed before it was fired to 1250°C after air-drying. An electrical property such as dielectric strength (breakdown voltage) was determined for each test sample that survived the high temperature. The composition for optimum properties from Ekwulobia and Iva Valley clays each is at composition 3 of 60% clay, 25% feldspar and 15% silica; while for Nawfija clay, the composition for optimum properties was 50% clay, 30% feldspar and 20% silica. Porcelain insulators containing 50-70% clay, 20-30% feldspar and 10-20% silica were found to have requisite properties that make them suitable for domestic production of porcelains insulators from the clay samples studied.


2014 ◽  
Vol 805 ◽  
pp. 475-479
Author(s):  
Adriana S. González ◽  
Ticiane Sanches Valera ◽  
Samuel Marcio Toffoli

An electrical insulator is a piece or structure of an insulating material, which aims to rigidly or flexibly support electrical conductors or equipments, insulating them of the ground [1]. The insulators have distinct styles or types, offering a wide choice of components for overhead distribution design. The first and oldest series is the standard line post insulator for upright mounting on crossarms or structures [2]. An outline of the design can be seen in the Figure 1. These components have an integral head manufactured in porcelain for tie top attachment, and a base cemented on the lower end, for stud mounting to a flat surface.


Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
M Gangopadhyay ◽  
R Bhattacharya ◽  
D Chakraborty ◽  
S Bhattacharya ◽  
A Mitra ◽  
...  

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