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The lamp can be lowered by means of a pulley when reneisals are to be made, A pole lock should be used to lock the lamp in place, so as to prevent malicious tampering, 3/8" double galvanized seven strand steel cable should be used in supporting the street hood. Lighting Protection: Low voltage direct current plants do not encounter much trouble with lighting, and it is therefore necessary merely to place arresters in each circuit at the station with a few scattered throuôut the system at the points where the feeders converge. The Sarton-Daniels catalogue 50015 arrester, mounted in pole type wooden boxes , offers a servicable protective device iifliioh prooves very re- liable. For station service the station type (Jart on-Daniels arrester #50014 should be specified. These arresters are shown in Figure 6. Specifications ; The complete specifications for the line material, ex- cepting the wire, is given in the following. 07SRTTEAT) DISTRIBUTION SYSTEM. MATERIAL ; Price F.O.B Jforwallc 2 - 40»7" Northern White Cedar Poles | 22.40 2 - 35' 6" Northern White Cedar Poles 13.30 60 - 30' 6" Northern White Cedar Poles 240.00 50 - 25»6'' Northern White Cedar Poles 105.00 All of the above poles to conform strictly with the specifications of the Northwestern Cedarmen»s Association, 90 - 5/8" X 10" aalv. machine bolts. Each machine bolt to be complete with two 2-1/4 X 2-1/4 X 3/I6" galv, sq. washers, 11/1 6" htle and one sq., nut. 5.82 20 - 5/8" X 14" ditto 1.54 500 - 24" X 1-7/32" double galv. cross arm braces. 26.44 26
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Illinois Institute of Technology UN
Page 7 and 8:
THE INSTALLATION OF AN ELECTRIC LIC
Page 9 and 10:
TABLE OP COITENTS, —oooOooo— Se
Page 11 and 12:
oooOnoo ?ig. 1 Plat of the Village
Page 13 and 14: THE mSHALLATIOS OP AN ELECTRIC LIGH
Page 15 and 16: SECTION I, HISTORY. The Village of
Page 17 and 18: SECTIOir II, Size of the Generator,
Page 19 and 20: This estimate is very liberal. The
Page 21 and 22: station capacity. This figure may a
Page 23 and 24: the residence district. Gasoline st
Page 25 and 26: Ihs total estimated load le therefo
Page 27 and 28: sfeLOWs that •ttiis estimate chec
Page 29 and 30: Compensator ; This generator shall
Page 31 and 32: Alternating Current System ; SECTIO
Page 33 and 34: tunnels in the hills on each side o
Page 35 and 36: In the 18 typical plants Investigat
Page 37 and 38: TABLE NO. 3 COPPER CALCULATIONS Len
Page 39 and 40: 125/250 VOLT SYSTEM. peet Of Size o
Page 41 and 42: In addition to Its advaatages from
Page 43 and 44: SECTIOS IV* The Storage Battery. 15
Page 45 and 46: 16. longer psrlod of time each day
Page 47 and 48: to accomodate four additional plate
Page 49 and 50: apparatus is special and therefore
Page 51 and 52: SBCTION T. The Switchboard. In the
Page 53 and 54: 20. Is required. For intelligent op
Page 55 and 56: panel contains all the apparatus sr
Page 57 and 58: I!FEM #2 ; Egxtlpnent 1 - DJ. Type
Page 59 and 60: ITEM #4; 2 - D»PJ).T. 250 V. 60 am
Page 61 and 62: Poles ; SECTION VI. The Line Constm
Page 63: are 3 feet long, four-pin arms 4 fe
Page 67 and 68: 400 - 3/8" X 4" galT. carriage bolt
Page 69 and 70: eluding the cost of erection, SECTI
Page 72 and 73: .II? .JGITO;;;;:. -xo iaelq b:
Page 77: O JiOO Too -^
Page 85 and 86: ELECTRIC SERVICE SUPPLIES COMPANY I
Page 87: ELECTRIC SERVICE U P P L I E S COMP
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