Investigating the Production Quality of Electrical Porcelain Insulators from Local Materials

2nd International Conference on Engineering for Sustainable World

Nwachukwu, V.C.^1 ; Lawal, S.A.^1

Department of Mechanical Engineering, School of Infrastructure Process and Engineering Technology, Federal University of Technology, Minna, Nigeria^1

关键词: Bulk density;    Electrical resistances;    Linear shrinkage;    Local materials;    Physical and electrical properties;    Porcelain insulators;    Production quality;    Triaxial porcelain;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/413/1/012076/pdf
DOI  :  10.1088/1757-899X/413/1/012076

来源: IOP

【 摘 要 】

Electrical porcelain insulators were manufactured from Agai and Kutigi Clay and other locally available raw material i.e. Feldspar (Kagara), Quartz (Kadna) and Talc (Kagara). Compositions were formulated using a universal triaxial porcelain composition (kaolin, 28%; ball clay, 10%; feldspar, 35% and quartz, 25%) to produce test pieces. The pulverized and mixed compositions were molded and fired at a temperature of 1250°C. The physical and electrical properties were investigated. The results show that the samples have electrical resistance between 3.52 x 108 and 2.05 x 109, and dielectric constant between 8.7 and 11.4, with respect to the frequency considered. The results of the physical tests i.e. linear shrinkage, bulk density, water absorption and failing load were also in agreement with the standard for porcelain insulators.