Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 120
es, whichremain permanent, have led to its adoptionfor the manufacture of overhead line insu-lators. The fact that it can be moulded toalmost any shape renders it suitable for theinsulation of ht switch contacts, bushings,and fuse blocks, for all of which purposes itis extensively employed. (Eef.… … Porcelain Interior of small switches and junction boxes aremounted. In the illustration a T-jointingbox with its porcelain interior is shown withthe cover removed. Porous Cups (Porous Pots), vessels, generally of cylindrical or rectangular sec-tion, used for separating two liquids in anelectrolytic…
Electrical engineering
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