Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 347
cations. The majority of the luminous arc lamps now inuse (some 200,000) operate at about 75 volts at the arc and take 4amperes, requiring 310 watts per unit. A 510-watt 6.6-ampere lampis also standard. Fig. 37 illustrates the series luminous arc lampas manufactured by the General Electric Company,… … Fig. 38. lUumination Curves of 4-Ampere and 6.6-AmpereLuminous Arc Lamps candle-power of 1340. Metallic flame arc lamps are also made witha second metallic electrode used in place of the copper segment. A very popular form of luminous arc lamp for ornamentalstreet lighting is constructed with the…
Electrical engineering
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