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 1368
thepotential strain is thrown across the shunted gaps, GH,equal in number to the previous set. In other words, thesame voltage breaks down both of the groups of gaps, GSand GH, in succession. The lightning discharge current isnow limited only by the medium resistance, M, and thepotential is… … *^v Fig. 629 UNIT OF MULTIGAP LIGHTNING ARRESTERS cases, but with extraordinarily heavy strokes and high fre-quencies, the discharge can break back far enough to cutout all resistance. In the last step the resistance is rela-tively low in proportion to the number of shunt gaps, GL,and is designed…
