Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1370
CcyrnGnC /n >S/7unt /^G3/3tc7nc<s ^^^ Stc?t/a D/sc/7C7rj^<5 3200 l^o/ti … Fig. 632oscillograph curves showing lightning arrester action The 1,000-volt arrester is the same in design, but hasonly one gap between the high resistance rod and line. The 3,000-volt arrester (see Fig. 633) is based on thesame general principle as the 2,200-volt arrester, differingifrom it…