. Garton-Daniels and Keystone lightning protective apparatus. . um phase—phase voltage. Type EX, form 1, arresters are for use on circuits of from 1200 to 2500volts, maximum phase—phase voltage. Type EX, form 2, arresters are for use on circuits of from 2500 to 3500volts, maximum phase—phase voltage. Type EX, form 3, arresters are for use on 2500-volt 3-phase Y circuitsoperating with grounded neutral, and having a phase—phase voltage of ap-proximately 4200. They are also for use in 2500-volt 2-phase three-wire circuitsoperating with grounded neutral, and having a phase—phase voltage of ap-prox
. Garton-Daniels and Keystone lightning protective apparatus. . um phase—phase voltage. Type EX, form 1, arresters are for use on circuits of from 1200 to 2500volts, maximum phase—phase voltage. Type EX, form 2, arresters are for use on circuits of from 2500 to 3500volts, maximum phase—phase voltage. Type EX, form 3, arresters are for use on 2500-volt 3-phase Y circuitsoperating with grounded neutral, and having a phase—phase voltage of ap-proximately 4200. They are also for use in 2500-volt 2-phase three-wire circuitsoperating with grounded neutral, and having a phase—phase voltage of ap-proximately 3500. Complete listing of ground fittings is given on page 42. List List No. Std- Pk»- Price S0672 Type EX, form 0, arrester, 350-1200 volts _ 12 $ 50632 Type EX, form 1, arrester, 1200-2500 volts - 12 50633 Type EX, form 2, arrester, 2500-3500 volts _ _ 6 50636 Type EX, form 3, arrester, 2500-volt, 3-phase Y 12 17 ELECTRIC SERVICE SUPPLIES COMPANY KEYSTONE LIGHTNING ARRESTERS Expulsion Type—3500 to 7500 Volts. A.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdivisio, bookyear1921
