Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 95
there is generally a lamp or lamps onthe panel to show whether the switch is openor closed. Air-break switches or links areplaced between the bus-bars and the oilswitch to allow of the latter being isolatedfor inspection purposes, and as a general rule no apparatus carrying ht current is allowedon… … Feeder Panel A, Circuit brealcer. B, Ammeter. 0, Voltmeter. D, Twosingle-pole switches ammeter B, voltmeter c, and two sp switches,D. (Eef. Electricity Control, Andrews;Standard Polyphase Apparatus and Sys-tems , Oudin.) Panel, Fuse. See Fuse Panel. Panels, Switchboard, the panels, gene-rally of…
Electrical engineering
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