Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 106
so that the sur-face is covered with little points. These cylinders are held in insulating strips so as to beabout 1-64 of an inch apart. For low voltages the center ^Abbreviation for alternating current. LIGHTNING ARRESTERS LOW VOLTAGE 107 cylinder is grounded and the end ones connected to… … LINE LINE Fig. 38. Wiring diagram for 1000 volt circuits. One Arrester used. the arc out, and the boiling of the metal where the sparkjumps carries the heat away in the vapor and the spot istoo cool to hold an arc. The cylinders must be turned after each storm to pre-sent fresh surfaces for the…
Electricity
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