Garton-Daniels and Keystone lightning protective apparatus. (1921)
Electric Service Supplies Co. · Electric Service Supplies Co. · leaf 13
e air gaps are entirely suf-ficient to extinguish the flow at the end ofthe first half cycie of the generator wave.When the flow becomes heavier we still de-Figure 6—Details of Expulsion pend to a certain extent on the arc-ex- Gap of Expulsion Arrester tinguishing properties of the air gaps, but… … ELECTRIC SERVICE SUPPLIES COMPANY KEYSTONE LIGHTNING ARRESTERS Expulsion Type gap R to assist the air gaps in extinguishing the flow of current toground. The heating value of a current depends on the square of its value(H=R if, therefore, we get any certain expulsion blast with any given current,…
Lightning arresters · Ligtning protection for buildings · Lightning protection for structures · Lightning protection surge arresters and suppressors · Medium-voltage lightning arresters
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