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TRANSACTIONS

OF THE

AMERICAN INSTITUTE

OF

ELECTRICAL ENGINEERS

JULY TO DECEMBER, 1915

EDE

VOL. XXXIV, PART II

PUBLISHED BY THE

AMERICAN INSTITUTE OF ELECTRICAL ENGINEERS
33 WEST THIRTY-NINTH STREET

NEW YORK, N. Y., U. S. A.

1915

Copyright, 1915
by the

AMERICAN INSTITUTE OF ELECTRICAL ENGINEERS

Press of McIlroy & Emmet, 22 Thames Street, New York

CONTENTS.

MEETING AT DEER PARK, MD., JUNE 29 TO JULY 2, 1915.
Overhead Contact Systems, Construction and Costs--Part I--By

1459

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the American Institute of Electrical Engineers,
Deer Park, Md., July 1, 1915.

Copyright 1915. By A. I. E. E.

OVERHEAD CONTACT SYSTEMS, CONSTRUCTION
AND COSTS

PART I

BY E. J. AMBERG

ABSTRACT OF PAPER

This paper, written with special reference to the New Haven
electrification, gives a brief analysis of the systems and points
to be considered in equipping trunk lines with overhead catenary
construction. The paper is subdivided into five parts, viz:
catenary systems, supporting structures, sectionalization, special
construction and cost data.

Under" Catenary Systems" a short description is given of
the various types used on the New Haven, stating the conditions
for which each is best adapted.

The same applies to the supporting structures and sectionali-
zation.

Under" Special Construction" only the cross-overs and river
crossings have been considered more fully, while other special
work has only been mentioned, as it was not within the scope of
this paper to go into the details of construction.

With reference to the cost data: It should be borne in
mind that the figures given apply to the New Haven construction
which was installed in the section with greatest traffic density,
also through thickly settled communities. Therefore, the figures
given will be of little value for comparison or estimating unless
these conditions are equated.

THIS

HIS SECTION of the paper is written with special reference
to the electrification of the New York, New Haven &
Hartford Railroad between New York and New Haven, the
New York, Westchester & Boston Railway, and of the Hoosac
Tunnel section of the Boston & Maine Railroad; the writer
having been closely associated with this work under the direction
of Mr. W. S. Murray.

The N. Y., N. H. & H. R. R. section covers an entire engine.
district consisting of 75 route miles of four and six-track main
line; six route miles of single track branch line; large freight yards,
station sidings and industrial spurs. The New York West-
chester & Boston Railway section consists of 17 route miles.
of four and two-track main line with yards and sidings. The
Boston & Maine Railroad section consists of eight route miles

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