Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 405
n curvo for a H.O ampere, open, direct-current arc. Curve B shows distribution curve for a 6.6 ampere, D.C. enclo.sed arc. 334 ELECTRIC LIGHTING 53 Curve C shows distribution curve for a 7.5-ampere, A.C. enclosed arc.Globes used withB and C are opal, inner globes, clear, outer globes.Globes used… … ■-SE- •X3ad anoNVOFig. 43. XVW BAV distance from the foot of the pole supporting the lamp. Illumi-nation curves corresponding to the distribution curves in Fig. 42are given in Fig. 43 where A, B, and C correspond to A, B, and 335 54 ELECTRIC LIGHTING C in Fig. 42. These curves correspond to actual…
Architecture · Building · Carpentry
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