IEEE Power & Energy Magazine - January/February 2014 - 8

Author's Response
Mr. Hepburn raises a valid point, but I
don't have any data that indicates that
firefighter access to buildings was the
reason that new York city became an
underground system.
overhead lines were
outlawed after the blizzard of March 1888
in which live 2,000-V
arc light cables fell
to the street and then
energized snow drifts.
there was no fault current detection in those
days. new York city soon ordered the
removal of the lines. Many of the companies balked, and some even threatened or initiated litigation. Finally, the
mayor ordered deputies out to chop the
live lines to the street.

the united electric Light & Power
company issued a challenge to the edison company in 1890 in promotion of its
ac lighting systems. Published in newspapers, it was identified as an underground
system. early united
histories indicate that
the 133-Hz lines were
overhead in 1889, so the
decision to go underground must have anticipated the ordinance by
the city to abolish overhead line systems.
While I have never
seen anything specifically on firefighter
safety in regard to power lines and the
united company, most outdoor electric
signs, especially those with high-voltage
transformers for gas discharge "neon"
signs, featured a "fireman's switch"

There was no
fault current
detection in
those days.

that would de-energize the line on the
primary side to prevent a backfeed of
power through the water from fire hoses.
It could very well be that a prior concern
initiated that requirement. electric signs
are very tightly regulated in new York
city, and many small proprietors choose
to place lighted signs either inside the
show window or use a nonelectric sign
with floodlight illumination.
thus the reason was the city's reaction to complaints about the wires that
darkened the sky and threatened public
safety, the issue brought to a head by
the blizzard of 1888. Firefighter safety
may have been an issue as well, but
that was not primary so far as written
accounts are concerned.
-Joseph J. Cunningham
p&e

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8

ieee power & energy magazine

january/february 2014



Table of Contents for the Digital Edition of IEEE Power & Energy Magazine - January/February 2014

IEEE Power & Energy Magazine - January/February 2014 - Cover1
IEEE Power & Energy Magazine - January/February 2014 - Cover2
IEEE Power & Energy Magazine - January/February 2014 - 1
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IEEE Power & Energy Magazine - January/February 2014 - Cover3
IEEE Power & Energy Magazine - January/February 2014 - Cover4
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