. Journal of electricity. A STREET RAILWAYCROSSING Type 2-66 X, is used forleading and turning angles of15° to 174°. This is the dead-end construction with doublestrings of insulators in A STRAIGHT AWAYSTANDARD TYPE This is the standard twin cir-suit construction for citystreets (type 2-66 W), usedfor straight away lines andangles between 174° and 180°.It is the ordinary type ontangents. March 15, 1918] JOURNAL OF ELECTRICITY 275 crossarms are used, the wires of each circuit occupy-ing a vertical plane. The single circuit portion is con-structed mainly with a triangular arrangement of
. Journal of electricity. A STREET RAILWAYCROSSING Type 2-66 X, is used forleading and turning angles of15° to 174°. This is the dead-end construction with doublestrings of insulators in A STRAIGHT AWAYSTANDARD TYPE This is the standard twin cir-suit construction for citystreets (type 2-66 W), usedfor straight away lines andangles between 174° and 180°.It is the ordinary type ontangents. March 15, 1918] JOURNAL OF ELECTRICITY 275 crossarms are used, the wires of each circuit occupy-ing a vertical plane. The single circuit portion is con-structed mainly with a triangular arrangement of thewell-known Byllesby wishbone type. This is believedto be the most economical single circuit construction,for by its use the top wire of the triangle is raised tothe level of the pole top, whereas if the crossarms werehorizontal this wire would fall three feet below. Thus,under equal clearance conditions, this type of con-struction saves three feet of pole height. Furthermore,no braces are required, yet the construction is more 7342 U£L SfJ ass rox JtAi ymt LT£W?£j SATWZ s_ 1 1 i 1 f- TBAr^DE-D . i/\ee COP. £e cone UCTOK. —r 7Z}W sAui JOB //o /zo ijo mo IJO 1 MP 170
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Keywords: ., bookcentury1900, bookdecade1910, bookidjo, booksubjectelectricity
