ELECTRICITY SUPPLY ORDINANCE, 1911

ELECTRICITY SUPPLY ORDINANCE, 1911

No. 18 of 1911.
For regulatifig the supply of Electricity for Lighting and other
purposes.

1. The Electricity Supply Ordinance, 1911.


[19th May, 1911.]

2. In this Ordinance,-

---Electricity--- ineans electricity, electric current, or an like
agency:

As amended bv No. 16 of 1912 and No. 17 of 1912.
As amended l~v No. 16 of 1912.
As amended by No. 50 of 1911 and No. 16 of 1912.





'Electric line- means a wire or wires, conductor or other
means used for the purpose of conveying, transmitting, or dis-
tributing electricity, with any easing, coating, covering, tube, pipe,
or insulator enclosing, surrounding or supporting the same, or any
part thereof, or any apparatus connected therewith for the purpose
of conveying, transmittirig, or distributing electricity or electric
eurrents

---Works ' means and includes electric lines, also any buildings,
niachinery, engines, works, matters, or things of whalever descrip-
tion required to supply electricity and to carry into effect the object
of a company :

---Company--- means and includes any person and any body of
persons corporate or ituincorporate by whoin electricity is supplied :

---Street ' includes any square, court, or alley, highway, lane,
road, thoroughfare, or public passage or place.
0 11 1

3. The regulations for securing the safety of public contained contained
c
in the schedule shall have effect as respects any company supplying
b
electricity within the Colony.

Provided that nothing in this Ordiflance shall apply to any electric
line or works laid down or erected by any person or body of persons
for the supply of el ectricity generated upon any premises occupied
by such person or body to any other part of such premises.

Provided always that for such supply any electric line passing
under or over any public street pathway or place shall conform to
these regulations.

4.' (1) Where for the purposes of a supply of electricity any
company has obtained or may obtain any licence or authority from
the Director of Public Works to break up streets or for any other
purpose, the Governor-in-Council may make regulations, which shall
be applicable to all. companies which have obtained any such licence
or authority, for securing a regular and sufficient supply of electri-
city, and generally for controlling and regulating such supply.

(2) The Governor-in-Council may make regulations as respects
any company supplying electricity for the protection of telegraph
cables, telephone lines, or lines operated by any department of the

As amended by No. 50 of 1911 and No. 16 of 1612.
As ainendd by No. 43 of 1912 Supp. Sched.





Government, or by the naval or military authorities, or by any
person or body of persons authorised by the Government to main.
tain a telegraphic service.
Is. US, rep. No. 16 of 191.2.]

6. Regulations made under this Ordinance shall come into force
after their publication for two consecutive weeks in the Gazette.

7. ADy regulation under this Ordinance may impose penalties for
offences against the same not exceeding 100 dollars for each offence,'
wIth or without penalties for continuing offences -not exceeding for
any Continuing offence 100 dollars lor every day during which the
offence continues. All such penalties may be recovered summarily.

SCHEDULE.

BLGULATIONS FOR SECURING THE SAFETY OF THE PUBLIC
Definitions.
1. In the following regulations,-

- Consumer's wires - means any electric lines on a consumer's pre-
mises which tire conueeted with the service lines of the company at the
consumer's terminals;

- Sub-station - rneans any premises in which energy is transformed
or converted for the purpose of supply to consumers, and which are
large enough to admit the entrance of a person after the transforming
or converting apparatus is in position, provided that for the purpose
of these regulations any place within any such premises whichis used
solely for some purpose other than such transformation or conversion
shall not he deemed to form part of a sub-station;

- Overhead line - means any electirc line which is place above
ground and in the open air;

- Pressure - means the difference of electrical potential between any
two conductors through which a supply of energy is given, or between
any part of either conductor and the earth; and-

(a) where tbe conditions of the supply are such that the pressure at
any pair of consumer's terminals does not exceed 250 votls, the supply
shall be deemed a low pressure supply.

(b) where the conditions of the supply are such that the pressure
exceeds 250 volts but does not exceed 650 volts, the supply shall he
deemed a medium pressure supply;

As amended by No. 17 oC 1912.
As amended by No. 50 of 1911 ajid '-~,o. 43 of 1912 Supp. Selled.





(c) where the conditions of the supply are such that the pressure
exceeds 6,50 volts but does not exceed 3,000 volts, the supply shall be
deemed a high pressure supply; and
(d) where the conditions of the supply are such that the pressure
exceeds 3,000 volts, the supply shall be deemed ,in extra high
pressure supply.

Where these regulations require any metallic body to be---efficiently
connected with eartli,- it shall be connected with the general mass of
0
earth in such manner as will ensure at. all times an immediate and safe
discharge of electrical energy.

Gencral.
2. The pressure of a supply delivered to any consumer sball not
exceed the limit of low pressure except for special purposes, for which
a medium pressure supply may be given on the consuinci. undertaking
to comply with the following conditions:-

(a) Where the supply is for power purposes

(1) the fral-ne of every electric motor shall be controlled connected
with earth;

(2) the consumer's wires forming the connections to motors, or
otherwise in connection with the Supply, shall be, as far as practicable,
completely enclosed in strong metal casing efficiently connected with
earth, or they shall be fixed in such a manner that there shall be no
danger of any shock;

(3) the supply to every motor shall be controlled by means of an
efficient cut-off switch, placed in such a position as to easily handled
by the person in charge of the motor, and connected so that by its
means all pressure can be cut off from the motor itself, and from any
regulating switch, resistance or other device in connection therewith;

(4) switches, efficienf, fuses or other automatic circuit-breakers shall
be provided, so as to protect the circuits from excess of current, and
all switches and cut-outs shall be so enclosed and protected that there
shall be no danger of any shock being obtained in the ordinanr handling
thereof, or of any fire being caused by their normal or abnormal action;
1

(5) a notice shall be fixed in a conspicuous position at every motor
and switch board in. connection Nvith the supply forbidding unautho'ised
persons to touch the motors or apparatus.

(b) Where the supply is for are lamps in series,--

(1) the consumer's wires forming the connection,-, to the are lamps,
or otherwise in connection with the supply, shall be, as far as practi-
cable, completely enclosed in strong metal casing efficiently connected
with earth, or they shall be fixed in such a manner that there. shall be
no danger of any shock;

* As aniended by '-\o. 50 of 1911.





(2) the supply to every are lamp shall be controlled by means of an
efficient cut-off switch, placed in such a position as to be easily handled
by the persoh in charge of the are lighting, and connected so that by
its means all pressure call be out off from the are lamp itself, and from
ally regulating switch, resistance or other device in connection there-
with. Provided that where the are lamps are connected in series
across the outer conductors of a three-wire system, it shall be sufficient
if one such switch be provided for each series of are lamps;

(3) switches, efficient fuses or other automatic, cut-outs shall be
provided, so as to protect the circuits from excess of current, and all
switches and cut-outs shall be so enclosed and protected that there
shall be no danger of any shock being obtained in the ordinary handling
thereof, or of any fire being caused by their normal or abnormal action.
(c) Where the supply is for incandescent lamps in series, unless the
Director of Public Works otherwise allows,-

(1) the consumer's wires forming the connections to the incandescent
lamps, or otherwise in connection with the supply, shall be completely
enclosed in stron- metal casing, and this casing together with the
switches and lamp holders, if moetallic, shall be efficiently connected
with earth;

(2) switches, efficient fuses or other automatic cut-outs shall be
provided, so as to protect the circuits from excess of current, and all
switches and cut-outs shall be so enclosed and protected that there shall
be no danger of any shock being obtained in the ordinary handling
thereof, or of any fire being caused by their normal action.

Where the supply is for any special purpose other than those above-
mentioned, or where the pressure of the supply exceeds the limits of
medium pressure it shall be subject to such ither regulations as the
Governor-in-Council may prescribe.

3. When the pressure between the outer conductors of a three-wire
system exceeds 250 volts and the three wires of the system or two
pairs of wire are. brought into a consumer's premises, the supply shall
be given to two pairs of terminals arranged in such a manner that
there shall be no danger of any shock, and the wiring from those
terminals shall be kept distinct.

4. The sectional area of the conductor in any electric line other than
low tension laid or erected in any street after the date of these Regula-
tions shall not be less than that of a strand of 7 wires, each of which
is of No. 22 standard wire gauge, and the sectional area of every wire
in a strand forming any such conductor shall not be less than that
gauge, and where such stranded conductor is erected it shall be sus-
pended from a suitable bearer wire. In the case of low tension con-
ductors in any electric line the sectional area shall not be less than
that of a, single wire---of No. 16 standard wire gauge efficiently insulated.

This regulation shall not apply in the case of an electric line-placed
in a lamp-post.
5. Every low pressure and medium pressure main, agter having been
placed in position, and before it is used for the purposes of supply,
shall withstand a pressure equal to the maximum pressure to
which it is intended to be subjected in use, and in any case at least
200 volts, and further, before being used as aforesaid, it shall be tested
for insulation, and the company shall duly record the results of the
tests of each main or section of a main.

6. A high pressure circuit shall not be brought into use unless the
insulation of every part thereof has withstond the continuous applica-
tion, during one hour, in the case of everv eleetric flue, of a pressure
equal to the full working pressure to wbich it is inteuded to be sub-
jected in use, and, in the case of ever machine, device, or
of a pressure equal to the full working pressure to which it is inteuded
to be subjected.

The company shall duly record the results of each test.

7. There shall be maintained by the company at each station or sub-
station as may be necessary a leakage indicator of approved pattern
and so arranged that the leakage indicator of approved pattern
ascertaubed at any time and a wekly test recorded. If at any time
the leakage is in the opinion of the Director of public Works excessive,
he shall require the company to remedy the same and it shall forthwith
be remedied.

Provided that where any part of any electric circuit is couneeted
with earth, either in accordance with tliese regulations or with the
approval of the Director of Public Works, the provisions of this regul-
ation shall not apply to that part of that, circuit so long as the
connection with earth exists.

8. Every high pressure main, conductor, or other apparatus shall be
protected by a suitable fuse or autornatic curcuit-breaher.

Provided that it shall not, be incumbent upon the company to provide
such a fuse or circuit-breaker for the onter conductor of a concentric
main. which is, in accordance with tliese re-ulations or with the
approval of the Director of Public Works, efficiently connected with
earth.

9. In everv ease where a high pressure supply is transformed for the
purpose of supply to one or more consumers, some suitable automatic
and quick-actina means sliall be provided to protect the -consumer's
wires from any accidental contact with or leakage frorn the high
pressure circuit, either within or without the transforming apparatus.
1
10. The metallic portion of every high pressure transformed former, with
the exception of the conductors thereof, shall be efficienth- connected
with earth 'except in respect of transformers supported 'on poles at
such a height as to be inaccessible except by the use of a ladder or
other special appliance: Provided that in such cases such poles shall
be efficiently connected with earth.

11. Where any portion of any electric line or any support for any
electric line is exposed in such a position as to be liable to cause





injuty from lightning, it shall be officiently protected against such
liability.
12. Where any accident by explosion or fire, or any other accident of
such kind as to have caused or to be likely to caused loss of
life or personal injurv has occurred at any part of ativ electric line or
work, the coinpaus- shall give immediate notice thereof to the
Director of Public Works.

Overhead Lines.

13-(1) The provisions of this regulation shall have effect in the
case of overflead for low, medium, and high pressure supply, and
in the event of sueh overhead lines being situated under the verandah
or balcony of any builaing the Director of Public Works shall deter-
mine how far and to what extent the provisions of this regulation shall
apply.

(21) The interval between any two wooden poles used singly as
supports for an overhead line shall not exceed 200 feet: provided that
where the line makes au abgke at any such pole, the interval between
that and the next pole shall not exceed 150 feet. In the case of sup-
ports other than single wooden poles the intervals, between the supports
shall be such as be prescribed by Gie Director of Public Works.

(3) Ever v support for all overbead line shall be of a durable material,
and shall be properly stayed against forces due to wind pressure,
change of direction of the line, or unequal lengths of span. The factor of
saftey shall be for overhead lines, at least 5, and for wooden poles at

least, 10, and for iron or steel structures at least 6, taking the maximum
possible wind pressure at 40 pounds per square foot.

(4) All overhead lines shall he attached to insulators, and in the case
of lines in which the pressure exceeds 110 volts, unless such lines are
erected ou the three-wire svstem as hereinafter described, shall be so
guarded that they connot fall away from the support.

(5) An overhead line, placed after the date of these regulations, shall
not in any part thereof be at a less height from the ground than 18
feet, except with the conseut of the Director of Public Works, and
shall not be accessible to any person without the use of a ladder or
other special appliance-.
(6) Where a supply is given by overhead lines on the three-wire
system, the positive and negative conductors shall be placed side by
side above the intermediate conduactor. The intermediate conductor
shall consist of two wires placed side by side at a distance apart greater
than that between the positive and negative conductors, and connected
in each span by two cross wires placed in such a manner that in the
event of either the positive or negative conductor breaking'it shall fall
on one at least of the cross wires.
(7) Where a supply is given by overhead lines from a two-wire
system, with the negative conductor connected with earth, the positive
conductor shall be placed above the negative conductor in such a
manner that in the event of breakage it must fall on the negative con-
ductor.





(8) Service lines from overhead lines shall be led as directly as
possible to insulators firmly attached to some portion of the consumer's
premises which is not accessible to any person without the use of a
ladder or other special appliance. Every portion of any service line
which is outside a building, and is within 7 feet from the building,
shall be efficiently protected by insulating material.

(9) Where an overhead line crosses a street, the angle between the
line and the direction of the street at the place of crossing, shall not
be less than 60 degrees, except with the consent of the Director of
Public Works, and the spans shall be as short as possible.

(10) Where an overhead line crosses, or is in proximity to, any other
wire or metal, precuations shall be taken by the company against the
possibility of the line coming into contact witht he other wire or metal,
or of the other wire or metal coming into contact with the line, by
breakage or other wire or metal coming into contact with the line, by
pressure exceeds 110 volts, guard wires shall be provided by the com-
pany owning such lines. All guard wires must make good electrical
connection with the poles and be efficiently connected with earth.

(11) Every overhead line, including its supports and all the structural
parts and electrical appliances and devices belonging to or connected
with the line, shall be duly and efficiengly supervised and maintained
as regards both electrical and mechanical conditions.

(12) The Company shall remove any overhead line upon ceasing to
use it for the supply of energy unless upon so ceasing they satisfy the
Director of Public Works that they intend to bring it into use again
within a reasonable time.

14. Save as above provided overhead lines shall not be erected except
in accordance will such regulations as the Governor-in-Council may
prescribe.

Electric Lincs other than Overhead Lines.

15. All conduits, pipes, casings. and street boxes used as recptacles
for electric lines shall be constructed of durable material, and where
laid under carriage ways shall be of ample strength to prevent damage
from heavy traffic, and reasonable means shall be taken by the com-
pany to prevent accumulation of gas in such receptacles.

16. Wheere any electric line crisses, or is in proximity to, any
metallic substance, special precautions shall be taken by the company
against the possibility of any electrical charging of the metallic
substance from the line or from any metal conduit, pipe, or casing
enclosing the line.

17. All metal conduits. pipes or casings containing any high pressure
electric line shall be efficiently eonnected with earth, and shall be so
jointed and connected cross all street boxes and other openings as
to make good electrical connection throughout their whole length.








18. Wbere the conduc-tor., of electric lines placed in any conduit are
not continuously covered with insulating material they shall be
secured in position and no unfixed uninsulated material of a con-
ducting nature shall be contained in the conduit. No such conducto r
shall be at a pressure exceeding 300 volts from earth.

Adequate precautions shall also be taken to ensure that no accu
mulation of water shall take in any part of the Conduit, and to
prevent any daugerous access of moistlire, to the conductors or the
insulators.

The insulator of any such electric shall be so disposed that they
can be inspected; but this requirement, shall not apply to any
such insulators which before the date of these regulations were not
required by regulation then in force to be so capable of ready
inspection.

19. EverY portion of any high pressure electric line placed above the
surface of the ground, or in any subway not in the sole occupation of
the company, shall be completely enclosed either in a tube of highly
insulating material embedded in brickwork, masonry, or cement con-
crete, or in strong metal casing efficiently connected with earth.

20. Where, any high pressure electric line is laid beneath the surface
of the ground, efficient means shall be taken to render it impossible
that the surface of the ground or any nieghbouring electric line or
conductor shall become charged by leakage from the hight pressure
electric line.

21. A higfl pressure electric line shall not, except with the consent
of the Director of Public Works, be used for the supply of energy before
it has been completely laid, properly jointed, examined, and tested,
or until it is in the sole charge of the company, and every such line
shall during its use be in the sole charge of the company.

23. In addition to the prosision- contained in regulation 15 as to
the cibstryctuib of receptacles for electric lines, the following con-
ditions -hall be observed witb respect to street boxes ~
(a) the covers of all street boxes shall be so secured that they cannot
be opened except by means of a special appliance;
(b) the covers of all -treet boxes containing high pressure apparatus
other thau cables shall be conueeted to strips of metal laid immediately
underneath the street, and efficient means shall be taken to render
it impossible that the covers or other exposed parts of these boxes, or
any adjacent material forming the surface of the street, shall become
electricallY charged, whether by reason of leakage, defect, or other-
wise;





(0) nhere street boxes are used as transformer chambers, reason-
able means shall be taken to prevent is far as possible any influx of
water, cither from the ad acent soil or by means of pipes; and in the
case of any such street box exceeding one cubic yard in capacity,
ample provision sitall be made, by ventilation or othenvise, for tfic
iininediate escape of any gas which ma by accident have obtained

access to the box, and for the prevention of danger from sparking;
(d) all street boxes shall be regularly inspected for the presence of
gas, and if any influx or accumulation is discovered, the conipany shall
are notice to the company wflose, gas mains are, laid in the
neighbourhood of the street box;

(c) where mains at different pressures pass through the same steet
box they shall be readily distinguishable from one another.
c

25. The company shall be responsible for all electric lines, fittings,
and apparatus belonging to them, or under their control, which may
be upon a consumer's premises, bing maintained ina safe condition
and in all respects fit for supplying energy.

26. In delvering the energy to a consumer's terminuals the company
shall exerrcise all due precautions so as to aviod risk of eausing fire on
the premises.

27. A suitable safety fuse or other authomatic circuit-breaker shall
be insertd in each service line within a consumer's premises as close
as possible to the point to entry, and contained within a suitable lokced
or sealed receptacle of fireproof construction, except in cases where
the service line is protected by fuses in a steet box; but no fuse or
automatic of a three-wire system.

Wherver a seal is found broken ona consumer's premises and unless
the same has been broken b an employee of the company, the con-
sumer shall be liable to a prenalty not exceeding 5 dollars.

28. All service lines and apparatus placed on a consumer's premises
shall be highly isulated and thoroughly protected against injury to
the insulation or access of moisture, and any metal forming part of
the electric circuit, shall not, unless efficiently commected with earth,
be exposed so that it can be touched, All electric lines shall be so fixed
and protected as to prevent the possibility of electrical discharge to
any adjacent metallic substance.



29. Wbere the general supply of energy is a high pressure supply,
and transforming apparatus is installed on a consumer's premises, tG
whole of the high pressure service lines, conductors, and apparatus,





including the transforming apparatus itself, so far as they are on the
consunier 1 s premises, shall be completely enclosed in solid walls, or
in strong metal casing efficiently connected with earth and securely
fastened throughout.

30. The company shall not connect a consumer's wires with their
mains unless they are reasonably satisfied that the connection would
not cause an undue leakage from those wires or fittings; and where the
decline to make such connection they shall serve upon the
collsurller a notice stating their reasons for so declining. The consumer
0
rnay appeal to the Director of Public Works whose decision shall be
filial.

31. If the company are reasonably satisfied., after making all proper
examination by testing or otherwise, that a leakage exists at some
part of a consumer's wires or fittings of such extent as to be a source of
dangerm any officer of the company, duly authorised by them in wirt-
ing, may, require the consumer at some reasonable time after the service
of the, notice to permit him to inspect and test the wires and fittings be-
longing the consunier and fori-ning part of the circuit.

11 on any consumer is dissatisfied with the action of the company
the consumer's wires of if the consumer does not give all due facilities
for inspection and testing,the company shall forthwith discontinue the
supply of energy to the premises in question, goving immediate notic
of the discontinuances to the consumer, and shall not ecommence the
supply until they are reasonably satisfied that the leakage has been
removed.

32. If aiiy consunier is dissatisfied with the action of the compans
in refusing to give, or in discontinuing or in not recommencing the
supply of energy to his premises, the wires and fittings of that con-
sumer shall, on his application and on payment of a fee of 10 dollars,
be tested for the existence of leakage by the Director of Public, Works.

This regulation shall be endorsed oil every notice given under the
provisions of either of the last two regulations.

33. Any consulner making any addition to the electrical installation
on his premises, without giving due notice to the company to enable
them to test the saine, before connectin, it to the existing installation
shall be liable to a penaltY not exceeding 50 dollars for every such
addition.

Arc Lighting.
34. Are used in any street for public lighting shall be so fixed
as not to be in any part at a less height than 10 feet from the ground.

35. All are lanips shall be so guarded as to prevent pieces of ignited
carbon or broken glass falling from them, and shall not be used in
situations where there is any danger of the presence of explosive dust
or gas.

* As atiiuiidcd by No. 43 of 1912 Supp. Sched.





Comlection of Circuits with Earth.
36. Where the pressure of a supply between the adjacent conductors
of a three-wire system of mains exceeds 125 volts, the intermediate
conductor shall be connected with earth, in accordance with the
following conditions:-
(a) the contiection with earth of tive interinediate conductor shall bc
made at one point only oil each distinct circuit, itainely, at the
generating station, sub-station, or transformer, and the iusulation of
the circuit shall be efficiently maintained at all other
(b) the current from the intermediate coiiductoi: to earth shall be
continuously recorded, and, if it at any time becomes excessive, step
shall be immediately taken to improve the insulation of the system.

37. The company shall not connect any other circuit earth
except with the approval of the Director of Public Work's and subject
to such conditions as he may prescribe.

Extra Higli
38-(1) This regulation shall have effect in the case, of a supply at
extra high pressure, and shall be ill addition to and not,in substitution
for the obligations inposed by the foregoing regulations.

(2) An extra high ressure main shall not, be brought into Ule
after it has been placed ill position and before it, is used for the pur-
poses of supply, the insulation of every part thereof has withstood
the continuous application, during half-an-hour, of pressure exceeding
the maximum pressure to which it is intended to be subject in use
that is to sat, in the case of every electric line to be used for a pressure
not exceeding .10,000 volts twice the said maxiumn pressure, and in
the case of a line to be used for a pressure exceeding 10,000 volts, a
pressure, exceeding the said maximum pressure by 10,000 volts: and
the company shall record the results of the, tests of each main or scetion
of a main.

(3) Every extra high pressure main shall be protected by a suitable
fuse or automatic circuit -breaker, but in the case of a concentrie inain
that fuse or circuit-breaker shall not be, inserted in any external Con-
ductor thereof which is connected with. earth.

(4) In every case where all extra high pressure supplY is transformed
or converted to a reduced pressure, some suitable automatic and quick-
acting mealis shall be provided to protect the reduced pressure Circuits'
from any accidental contact with or leakage from the extra high pres-
sure system, either within or without the transformiug or converting
apparatus.

(5) All metal conduits, pipes, or casing any extra high

pressure electric line shall be efficiently connected wit earth, and shall
be so jointed and connected across all street boxes and other openings
so as to make good eleetrIcal connection throughout their whole length.
(6) Every portion of aviy extra bigh pressure electric line placed
above the surface of the ground, otherwise than in a sub-station, or in





any subway not in the sole occupation of the company, shall be com-
pletely enclosed either in a tube of highly insulated material embedded
in brickwork, masonry, or cement concrete, or in strong metal casino,
efficiently connected with earth.
(7) Where extra high pressure mains for threc-phase supply consist
of insulated conductors laid togetlier, provision shall be made to ensure
that neither the ground nor any neiglibouring or electric line or con-
ductor can become charged by leakage from any such main.
Where this provision is made by a copper strip under a lead sheath,
that strip shall be nol less tlian- sixteen-thousandths of an inch in
thickness, and where it is made by steel wires outside a lead sheath,
each of those wires sliall be not less than one-tenth of an inch in
diameter.

Where the mains are enclosed in a lead sheath, that sheath shall be
not less than one-tentb of an inch in thickness, and shall be per-
manently and efficiently connected with earth.
(8) Extra high pressure mains for single phase supply and all cables
connected therewith shall consist either of two concentric conductors
or of sepa rate conductors. WIlere concentric conductors are used the
insulation shall be maintained efficiently throughout except that the
outer conductor shall be connected with earth at one point, and where
separate conductors. are used provision skali be made as in the case of
mains for threc-pliase stipph, to ensure that neither the ground nor any
neighbouring elect.rle line or conductor can become charged by leakage.

(9) An extra bigh pressure clectric line shall not be brought into use
for the supply of energy before it has been completely laid, properly
jointed, examined, and tested, or until it is in the sole charge of the
company, and every such line shall during its use be in the sole charge
of the company.
(10) Extra high pressure maitis shall not pass through the same
street box with other mains, unless they are enclosed in strong metal
casing; and street boxes containing bigh pressure mains shall. not Con-
tain pipes for water, ags, or other Sen,Ice, or electric mains belonging
to another undertaking: provided that any such street box may contain
telephone wires belonging to the company.
(11) Sub-stations supplied at extra higg pressure shall be established
in suitable places and shall be in the sole occupation of the coinpany.

(12) Sub-stations constructed below the surface of any street after
the date of these regulations to which an extra high pressure is to be
given shall not contain switches or other apparatus than transformers.

(13) The transforming apparatus, at any sub-station supplied at extra
high pressure shall be so arranged that there shall be no danger of any
mains connected therewith being charged to any pressure beyond the
limits of pressure for which those mains are intended.
(14) In delivering the energy to a sub-station at extra high pressure
the company shall exercise all due precautions so as to avoid risk of
causing fire on the premises.

(15) All extra high pressure electric lines and apparatus placed in a
sub-station shall be highly insulated and thoroughly protected against
injury to the insulation or access of moisture, and any metal forming
part of the electric circuit shall not, unless efficiently connected with
earth, be exposed so that it can be inadvertently touched. All such
lines shall be so fixed and protected as to prevent the possibility of
electrical discharge to any adjacent metallic substance.
(16) The Director of Public Works shall be entitled to enter at all
time.. any of the generating or sub-stations of the company supplying
or supplied at in extra high pressure, and to make any such examina-
tion and tests of the mains, machines, transformers, or other apparatus
in use. in those stations, as may appear to him necessary, and the com-
panly, shall afford all due facilities for any such examination and tests.
(17) Where any extra high pressure circuit is cormected.with earth,
the connection shall be made at one point only, at the. genera
tine, station, sub-station, or transformer, and the insulation of the
circuit shall, except at that point, be efficiently maintained throuahout.
(18) The neutral point of the star winding of each distinct three-
phase circuit, used for extra hilh pressure, inay be connected with
earth, or may be insulated. If connected with earth through a re-
sistance, that resistance shall be sufficiently lon, to ensure that the
fxiqe or automatic circuit-breaker in the mains shall act.

If the neutral point is not connected with earth, a separate electro-
static voltmeter placed in a conspicuous position in the generating
station shall be connected between each distinct circuit and earth; and
if the indications of the voltmeters show that the insulation of any of
the circuits is faulty, immediate steps shall be taken to restore the
insulation.

Penalties.

39. If the company rinake default in complying wiht any of the pre-
ceding regulatiow, they shall, on surnmarv conviction, be liable to a
penalty not exceeding 100 dollars for every such default, and in the
case of a continuing offence to a further penalty not exceeding 100
dollars for each day during which the offence continues.
The recovery of a penalty under these regulations shall not affect the
liability of the company to make compensation in respect of any
darnage or injury which may be caused by reason of the default
short title . Interpretation of terms . regulations for securing the safety of the public. Power for governor-in-council to make further regulations. notice of regulations penalties may be imposed in regulations . Definitions. presuure of supply to consumers. introduction of three-wine system into consumers' premises . Minimum size of conductors. insulation lest of low pressure and medium pressure circuit . Maintenance of insulation . Circuit-breaker for high pressure mains, etc. transformces. Connection of transformers with earth . Protection from lightning . report of accidents to director of public works . Overhead lines in case of low , medium , and high pressure supply . other overhead lines , construction of receptacles for electric lines. Crossing pipes , etc . Electric continuity of metal conduits , etc. of high presure line. prescautions to be taken when bare conductors are used . High pressure lines laid above ground or in subways . Protection for surface of ground and electric lines. Completion and control of high pressure lines . Sub-stations. Street boxes . maximum power in case of underground sub-station , etc. responsibility of compay for lines , etc. on consumer's premises . Fire risks. Main fuses or circuit-breakers. Treatment of service lines and apparatus on consumers's premises . Transformers and high pressure. apparatus to be enclosed in metal , etc. connection to consumer's premises not to be made where undue leakage would result. Discontinuance of supply on discovery of leakage on consummer's premises. Appeal to director of public works. Penalty on consumer for addition to electrical installation . height trom ground . are lamps to be guarded . connection with earth of a three-wire system . Connection of other circults with earth . Special regulations as to extra high pressure . penalties for default.

short title . Interpretation of terms . regulations for securing the safety of the public. Power for governor-in-council to make further regulations. notice of regulations penalties may be imposed in regulations . Definitions. presuure of supply to consumers. introduction of three-wine system into consumers' premises . Minimum size of conductors. insulation lest of low pressure and medium pressure circuit . Maintenance of insulation . Circuit-breaker for high pressure mains, etc. transformces. Connection of transformers with earth . Protection from lightning . report of accidents to director of public works . Overhead lines in case of low , medium , and high pressure supply . other overhead lines , construction of receptacles for electric lines. Crossing pipes , etc . Electric continuity of metal conduits , etc. of high presure line. prescautions to be taken when bare conductors are used . High pressure lines laid above ground or in subways . Protection for surface of ground and electric lines. Completion and control of high pressure lines . Sub-stations. Street boxes . maximum power in case of underground sub-station , etc. responsibility of compay for lines , etc. on consumer's premises . Fire risks. Main fuses or circuit-breakers. Treatment of service lines and apparatus on consumers's premises . Transformers and high pressure. apparatus to be enclosed in metal , etc. connection to consumer's premises not to be made where undue leakage would result. Discontinuance of supply on discovery of leakage on consummer's premises. Appeal to director of public works. Penalty on consumer for addition to electrical installation . height trom ground . are lamps to be guarded . connection with earth of a three-wire system . Connection of other circults with earth . Special regulations as to extra high pressure . penalties for default.

https://oelawhk.lib.hku.hk/items/show/985

1912

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No. 18 of 1911

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