Evening star. [volume] (Washington, D.C.) 1854-1972, 1906-07-26
mTTcrn Houcrs.

- ~ "a a IL
1rat ~ - a vIros
80 =. - - S,sss. 1i.sS f3eek ard
Power ~ her@hr 1rnesssd q friisws: Ala e
sns.ti 1 .hsrsS~. ~ Sescre = Net wAea
sssrsxv - ,sss.sfsi /. sxee~s q 80 Volts.
s.vs e s.pessd I've st.i P.ss ED a.rs ia
Tne ~ 81 psssn<- ss.ssstfsr n ! uossntil d ex-
cserv .rs ~ ySs III ssg - sesn rsoyided
Motors cpsrstsnx 4 ! rcfentisT Of $50 volts Or
Whercvrr ssisse sWSsoaer 49, frsmes used for
this psrpose and wcodez noors which are depended
niied g rrsyent sbscrvticn Of moisture. and must
cssse aes ak .css,esi Eneeer nay in
writing. permit its omission. II which ease. the
grounded 7ish-poirnfiaI machine saaeuid be
surrounded WIT "a iasulseed platform. Tsis may
and 50 arranged thsf : man must stand upon It
m order to foaca say psrt Of the machine. In
there q trcube from ststic eiecfricity due to belt
friction. Il should Be overcome by placing near
Or BY sronasnr sse ~ nS shrorsh rrsssance
Of nat hess than 800 600 olms b. Motors oper.t-
wired with the same precautions required BY
rules IN Class -C'' for wires earring current
sssi setweer sSo and vs must Be wired
with spsroyed multiple cosductor uet.l.shesth .
mansntiy and excessively grounded and the. con-
struction and installafion OF the conduit must con-
form to rules for interior ccndnits tSee No. 80
and No. 81, "a ..T' and ..k'). except that at
outlets approved outlet bushings shall be used
The motor leads branch circuits must be de-
signed to carry current at least q per cent
order provide for the inevitable occasional
loading Of the motor and the increased current re.
but where the wires under this rule would be
over fused. In order to provide fer the starting
current. as in the OF many OF the alternating
current motors. the wires must be Of such size as
to be properly protected by these larger fuses The
Insulation OF the several conductors for high po-
teTtial motors where ieaving the metal sheHfh at
outlets, must be thoroaehiy protected from mois-
plished by means OF pot head or some equivalent
method The conduit must be substantially bonded
would be much preferable lie to make the conduit
joints and this construction S strongly recon-
tors should preferably be SO located that the
amount Of Inside wiring will be reduced to
the wire for high potential motors to be Installed
according to the general rules for high potential
ditions there would generally be but few feet
motor room. c. Each motor and resistance box
must be protected by cut-out and controlled by
dcating whether ION or or with motors of
one fourth horse power or less. circuits where
be complied with, and single pole switches may
be used as allowed IN No. "a SC" The switch
motor, except in cases where special Permission
to locate them elsewhere Is given, In writing by
ers with all motors is recommended and viii be
required for all motors OF horsepower more.
surfing rheostat disconnects all wires OF the cir
cult the switch called for in this section may be
starting rheostats win not be considered to fake
e ex are OF one uru s ss @ @
motor The switch is necessary for entirely dis
1 the motor when not in use and the
rents due to accidents or careless handling when
meeting all wires of the cirent NAV however
serve as both switch and cnf-opt In general
psrts. d. Must have their rheossts Or Starting
boxes located so as to conform to the reauire.
STARTERS unless eounnsd NTH ish s dne ae e
closing ali current carrdng parts must be treated
or linty places must he enclosed IN dust Hight Hight
fre-nroof cafSnetx II = sneciaI motor room, Is
providedd the starting appsratns and safety de-
any sbty of sher a aefe Is
facts sher must etber h eneioss IN csh,rats
or else railing must be erected around them, to
medi,ta ytcnity N,,st n"t 10 ,,,n N a.,sas
multiple or mnitiple-series except ON consta,t
m,ssio Of she E,actr Inc .heF oa py per,
coxerea With ,u ssernr, s4 % MUST I d
sineer mnst ha ancosad N sn .nnraraJ Isl
When It Is necessary to locate motor !, the
or dirfx nlscss a. Is canerai,v .dv,s,ta' o"s,y
close n a. above such ncasres shed 70 re en-
arc dnGf arrn ,.dS 97n;a,
isted to prevent an excessve riss r samn.rs t,,re
The sides shoud nraferably ~, n,ata 1srgs,r q,
GLASS so that the motor NAV he aJr.rs ~ ,ir
viSife This Iassans fha cl,,noa 81 i,s 49,, 49,
lacted .ssj slIowrs ,nr NEUTRALITY-SUSPICIOUS. IS
orce noticed From th.. 1870 nf ~, M Ia
the derisjon az 70 details or ,, rnctn. ,nnyt hi
left to fle FIectricsl Fnpineer ia .,etsrni,n IN
each instance . Must when cambinei win
ceiling fans he hing from insuiated hooks or also
there must be an insuia,orr interposed between
viaed With ass n. v eaen ne pro
rsa,ne the eapafity IN volts and amneres and
the normal speed In revolutions per Minute
Termfnal blocks when used on motors must he
made OF approved n0n-cofibnstf,ie non abserpttye
insulating material such as slate marble or porce-
lain. BY adding to rule No Al the following to
be known section ia: d. No receptaeles or
sockets having exposed contacts viii be par-
boxes In metal conduit systems This will apply
both to inside and outside work and win forbid
the use of receptacles known to the trade as
pony WALL recepfacles By intending Rule "a
by changing section "a to section ST., sr', 70
So 50 to 81 ''t'' to ..u', and by adding TO
said rule new section to be known as section
"a follows: All wires of No q
duit systems, must be stranded; solid cs.nductors
viii not be permitted Of No and 8 gauge or
larger. BY amending rule 80 section .,f'T by
adding TO the large print thereof the following.
In order to secure permanent and efrectuai
ground connection fern of approved bond
cofnector must be used The Wrapping OF bond
wires around condpits without soldering or other
permanent form of connection viii not be ap-
proved. BY amending Rule IS section Ia by
proved for new work in non frenroof buili;ppz
m n.rr -x.-f+r 49,, p.rJ-