Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 717
RS. as beyond recovery, even if seemingly dead. Stimulate respiration andcirculation as best you can. Keep the body warm ; rub the limbs energet-ically, give water, wine, or warm coffee. Send for a physician. TESTS Of L1&HTX1AG RODS. To make the test, first determine the resistance of the lead… … THIS LEAD MUST BE SOLDFRED TO THE PIPE OR OTHER EARTH SO AS E NO RESISTANCE AT THIS JOINT. FIG, 6 DIAGRAM OF CONNECTIONS FOR TEST OF LIGHTNING RODS. Now, Rx = lx-\-Ex-\-E2 and Es=E1—l1 — E1 Jti = l1-\-Ex-\-E« and j0, = i?2 — I, — JE.XSi = E2-t-Es solving, we have All lightning rods should be tested…
Electrical engineering
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