Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1377
n thesame general principle as the 2,200-volt arrester, differingfrom it mainly in having two additional gaps to take careof the higher voltage. 1342 Steam Engineering The 2,200-volt arrester (Fig. 634) is used in variouscombinations to form arresters of higher voltage. Low-Voltage Ligli tning… … GROUND Fig. 633 FORM F2, 3,000-VOLT MULTIGAP ARRESTER FOR STATIONS as transformer secondaries, motors, series arc lamps, etc.These arresters are made in single, double and triple-poleunits. Protection of Cable Systems,—It is frequently necessary,and desirable for circuits to dip underground when…
