Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 30
n or covered byinsulators. It is a familiar sioht to seethe telegraph lines carried on stonewareor glass insulators on poles ; these insu-lators offer a very high resistance to thepressure, hence very little electricityleaks through them. Air is a very highresistance insulator, so that… … Resistances and Conductors use to the electrician as a rule. Among them, however, are carbon,water, damp earth, and high resistance metals of considerable value.Then another class of substances through which electricity passesare called ** electrolytes, consisting of chemical solutions, fused…
Electrical engineering · Electric power
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