590
From the Manager, China & Japan Telephone Co.Ltd.
To the Honourable the Acting Director of Public Works.
Sir,
Hongkong, 9th March, 1901.
Electric Tramways.
I have the honour to submit the following remarks in continuation of what I said at the Meeting this morning.
The Single Trolley system, according to the opinion of the ablest scientific men in England, does not, even when worked strictly in accordance with the Board of Trade Regulations, prevent disturbances in telephone wires, and the eating away of pipes laid in the ground.
The following opinion on this subject was expressed by Prof. Perry, D.Sc., F.R.S. in his Presidential Address to the Institute of Electrical Engineers in London a few months ago.
"As an electrical engineer I ought surely to regret the use of uninsulated returns (for tramways), even if we leave the Kew Observatory out of the question. Suppose we do not now insulate our returns, Electricity will certainly return by gas and water pipes and the amount of harm done to these pipes is merely a question of time. Because of the ignorance of Legislators and Gas and Water Companies, nothing is said just now, but will nothing be said at the end of ten years or twenty years when pipes are found to be eaten away everywhere? And if by a slight increase of expense merely a little
8.
590
From the Manager, China & Japan Telephone Co.Ltd.
To the Honourable the Acting Director of Public Works.
Sir,
*
*
*
*
Hongkong, 9th. March, 1901.
Electric Tramways.
I have the honour to submit the following
remarks in continuation of what I said at the Meeting this
morning.
The Single Trolley system, according to the
opinion of the ablest scientific men in England, does not, even when worked strictly in accordance with the Board of Trade
Regulations, prevent disturbances in telephone wires, and the
eating away of pipes laid in the ground.
The following opinion on this subject was ex-
pressed by Prof. Perry, D.Sc., F.R.S. in his Presidential
Address to the Institute of Electrical Engineers in London a
few months ago.
"As an electrical engineer I ought surely to
regret the use of uninsulated returns (for tramways), even if
we leave the Kew Observatory out of the question. Suppose we
do not now insulate our returns, Electricity will certainly
return by gas and water pipes and the amount of harm done
these pipes is merely a question of time. Because of the ignor-
ance of Legislators and Gas and Water Companies, nothing is
said just now, but will nothing be said at the end of ten years
or twenty years when pipes are found to be eaten away every-
where? And if by a slight increase of expense but merely a
little
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