597
(4)
The conduit system is more expensive to construct, and is peculiarly adapted to larger cities. The first cost of installing a double trolley system would be a little greater than that of a single trolley system for the same service; while the cost of converting an existing single trolley system to a double trolley one would be trifling as compared with the enormous interests endangered by the single trolley current.
Ten years' experience with the double trolley in Cincinnati proves that this system is entirely practicable, possesses many advantages over the single trolley, is more economical in operation and maintenance, and completely stops the injury to the pipes.
Your committee therefore respectfully makes the following recommendations:-
1. Street railway companies should be compelled, as are electric light companies and all other electric power companies, to provide a complete metallic circuit for their current, absolutely insulated from the rails and ground. This will keep the return currents out of the ground and off the pipes; and it can be accomplished either by the conduit system or by the double overhead trolley system.
2. No connections by which a current is carried to the pipe, or induced to flow thereon, should be allowed from pipes to rails or to other return conductors; and no other alleged remedy which permits the mains to carry any portion of the return current should be countenanced by those in charge of water works plants.
Even
ph
597
(4)
The conduit system is more expensive to construct, and is
the peculiarly adapted to larger cities. The first cost of ins- talling a double trolley system would be a little greater than that of a single trolley system for the same service; while the cost of converting an existing single trolley sys- tem to a double trolley one would be trifling as compared with the enormous interests endangered by the single trolley
current.
Ten years' experience with the double trolley in
Cincinnati proves that this system is entirely practicable,
possesses many advantages over the single trolley, is more
economical in operation and maintenance, and completely stops the injury to the pipes.
Į
Your committee therefore respectfully makes the
following recommendations:-
1. Street railway companies should be compelled, as are
electric light companies and all other electric power com-
panies, to provide a complete metallic circuit for their
current, absolutely insulated from the rails and ground.
This will keep the return currents out of the ground and off
the pipes; and it can be accomplished either by the conduit
system or by the double overhead trolley system,
2. No connections by which a current is carried to the
pipe, or induced to flow thereon, should be allowed from
pipes to rails or to other return conductors; and no other
alleged remedy which permits the mains to carry any portion
of the return current should be countenanced by those in
charge of water works plants.
Even
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