The Hawaiian star. [volume] (Honolulu [Oahu]) 1893-1912, 1902-02-12

Power or Railway Telephone or |
Telegraph Circuits on Public Road
ways and Highways.
In the construction of aerial circuits |
for the above purposes, the following |
rules and requirements must be OBJ |
served on and after this date:
POLES.
1. Application must be made on prop |
err blanks to the Superintendent of
Public Works for permission TO erect. !
2. Use of poles is limited to the pur-
pose for which they are erected.
3. Poles erected within town or city
limits other than those for electric
railway purposes must not be less than
forty feet in length and twelve inches
in diameter at butt.
4. Space between poles must not eX-
coed 100 feet
.. Poles subjected to special strains
must be properly guyed or braced. Guy
lines are not to be secured to trees.
6. Poles must be stamped with own
er's name and numbered.
Z. Private signal lines must not be
placed on poles for public service with
ont permission.
g. Where curb lines are established
poles are to be placed inside Of and
tangent to the curb line.
CROSS ARMS.
1. Must be chamfered
?. For high potential lines should be
dipped in oil.
3. When carrying more than two
lines must be braced with galvanized
iron braces.
4. Must be secured with galvanized
iron bolts not lag screws.
5. Where lines are dead-ended double
! cross-arms must be used.
WIRES.
l. Main conductors for electric light
or power on roads and highways must
not be less than No. 6 b. & S.
,. Service wires on roads and high
ways must not be less than No 6, B.
& S.; in private grounds, not less than
No. s B. & S, and rubber covered.
8. Electric light and power lines must
be kept clear of foliage. Supply com
panies are responsible for lines on
roads and highways, and owners on
private grounds.
f. The lower limit of wires on roads
and highways is that of the electric
railway trolley wire, twenty-one feet
above the level of the track.
8. Where wires for various purposes
are run on the same poles, or lines
cross, the following order viii be kept,
beginning with the highest:
(a) Signal wires.
CD Telephone and telegraph.
(c) High potential alternating cur
rent.
(d) Arc Iight.
(e) Low potential alternating cur
rent
CO Direct current, constant peten-
tial.,
6. Telephone and similar wires must
be protected by dead insulated guard
irons or wires from possibility of con-
tact with other conducting wires. Must
not be placed on same cross-arm with
electric light or power wires, and when
placed on the same poles with such
/ wires the distance between the inside
pins on each cross arm must not be
less than twenty-six inches.
Z. Wires crossing fiat roofs must
clear same by at least seven feet.
Wires crossing pitched roofs must clear
ridge over which th9y pass, or to
which they are attached by at least one
foot
8. Service wires must be run as near
ly as possible in horizontal lines from
poles to point of attachment to build
ings.
8. All joints in all wires must be sol
dered.
INSULATORS.
I. All insulators for high potential
circuits must be of glass and triple
petticoat
2. Insulators for other electric light
and power circuits must be glass and
double petticoat
3. Service wires for electric light or
power where secured to the outside of
buildings must be carried on double
petticoat, glass insulatoTs.
The term thigh potential covers any
current between $50 volts and $500
volts.
JAMES II. BOYD,
Department of Public Works, Homo
lulu, February 10, 1902