Electrical news and engineering . e auxiliaries. A small Ingersoll-Rand compressor was installed forcleaning purposes. Transmission Lines The main transmission line is a 33,000 volt, 3 phase line,14 miles to Renfrew. There are three No. 4 B. & S. harddrawn, bare copper conductors; a telephone circuit of No. galvanized iron and one overhead grounded wire forlightning protection, consisting of one 7-strand galvanized9/32 cable. An interesting point in connection with thiscable is the very simple and inexpensive means used for itssupport. On all straight runs it is tied to two 3/8 x 5 lag
Electrical news and engineering . e auxiliaries. A small Ingersoll-Rand compressor was installed forcleaning purposes. Transmission Lines The main transmission line is a 33,000 volt, 3 phase line,14 miles to Renfrew. There are three No. 4 B. & S. harddrawn, bare copper conductors; a telephone circuit of No. galvanized iron and one overhead grounded wire forlightning protection, consisting of one 7-strand galvanized9/32 cable. An interesting point in connection with thiscable is the very simple and inexpensive means used for itssupport. On all straight runs it is tied to two 3/8 x 5 lagscrews driven into the top of the pole. At all corner polesthe cable is brought around the outside of the pole and se-cured by means of an I-bolt Keystone clamp bolted to poleby means of one 5/8 x 5 lag screw. The high tension line insulators are Canadian Porce^lain Companys 2-piece No. 889, and stood a dry flash-overtest of 120,000 volts and a test when wet of 100,000 volts. A 700-foot span at the crossing of Norway Lake was.
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