Hong Kong Regulations

GAS SAFETY (GAS SUPPLY) REGULATIONS - SCHEDULE 2

CONDITIONS TO BE COMPLIED WITH BEFORE PERMIT IS ISSUED FOR GAS VEHICLE

[regulations 26, 31 & 35]

PART 1

ROAD TANKERS

1. In this Part, unless the context otherwise requires- "compression ignition
engine" (燃式引擎) means a compression ignition engine within the meaning
of the Road Traffic (Construction and Maintenance of  Vehicles) Regulations (
Cap 374 sub. leg. A); "overall height" (總高度) means overall height within
the meaning of the Road 
Traffic (Construction and Maintenance of Vehicles) Regulations ( Cap 374 sub.
leg. A); "vessel" (盛器), in relation to a road tanker, means that part of
the tanker which is used to contain liquefied petroleum gas in bulk.

2. All equipment of the road tanker shall be in good and efficient working
order and in such condition as not to be likely to cause danger to any person
upon the tanker or upon a road.

3. The body, chassis and fuel tank of the road tanker and all equipment shall
be constructed of non-combustible material.

4. Any combustible material used in the construction of the road tanker shall
be flame-resistant.

5. The road tanker shall he not more than 4.1 metres in overall height.

6. The vessel of the road tanker shall-

   (a)  be of a design pressure which includes an allowance to accommodate
        stress due to horizontal and vertical acceleration and retardation
        likely to be encountered in operation;

   (b)  where the vessel has a water capacity of more than 5000 litres, be
        fitted with baffle plates designed, so far as is practicable, to
        minimize surge and to allow for complete internal examination of the
        vessel;

   (c)  be mounted on the tanker in a sound manner;

   (d)  be effectively screened with fire-resisting shields from-

        (i)    the interior of the cab;

        (ii)   the fuel tank;

        (iii)  the electrical generator;

        (iv)   the engine;

        (v)    the batteries, switch gear and fuses; and

        (vi)   the engine exhaust system, of the tanker;

   (e)  be located not less than 150 millimetres distant from the nearest part
        of the fire-resisting shield which screens the interior of the cab of
        the tanker; and

   (f)  be fitted with quick-closing valves which may be operated by not less
        than one emergency control fitted to the tanker at a safe distance
        from the delivery connection.

7. All valves, fittings, pumps, pipework and accessories fitted to the road
tanker shall be so situated or protected that the risk of damage or leakage of
liquefied petroleum gas in the event of the tanker being involved in a traffic
accident is, so far as is practicable, minimized.

8. Any section of a pipe or hose of the road tanker which may-

   (a)  contain liquid liquefied petroleum gas; and

   (b)  be closed at each end, shall be provided with hydrostatic relief
        valves to protect that section from bursting due to increase of
        hydraulic pressure caused by temperature rise likely to be encountered
        in operation.

9. The engine of the road tanker shall be-

   (a)  a compression-ignition engine;

   (b)  provided with an air inlet system which prevents-

        (i)    over-running of the engine to destruction; and

        (ii)   flame propagation due to engine back-fire; and

   (c)  constructed and so situated or protected so as to avoid any danger to
        any liquefied petroleum gas carried by the tanker.

10. The fuel tank of the road tanker shall be-

   (a)  of double case construction;

   (b)  fitted with a lock to the filling hole cover;

   (c)  so placed that, in the event of a leak from the tank, fuel can only
        drain to the ground;

   (d)  separated from the cab of the tanker; and

   (e)  suitably protected against impact.

11. A means of-

   (a)  cutting off the supply of fuel to the engine of the road tanker; and

   (b)  stopping that engine, shall be provided in a position which is-

        (i)    outside the cab of the tanker;

        (ii)   easily accessible; and

        (iii)  identified, in the English and Chinese languages, by a notice
               prominently and legibly stating-

"EMERGENCY ENGINE STOP 緊急停車掣".

12. All electrical apparatus in the road tanker shall be so constructed and
installed as to guard adequately against the risk of short circuit and the
outbreak of fire.

13. All electrical apparatus which is in any enclosed area of the road tanker
where an accumulation of liquefied petroleum gas may occur shall be suitable
for use Zone 1 areas as defined in British Standard Code of Practice 5345:
Part 2: 1983.

14. All electrical apparatus which is not in any enclosed area of the road
tanker but is not more than 750 millimetres distant from the vessel of the
tanker, or any pressure valve, fixed liquid level gauge, vapour return
connection, loading or draw-off connection, or other opening to the vessel,
shall be suitable for use in Zone 2 areas as defined in British Standard Code
of Practice 5345: Part 2: 1983.

15. The road tanker shall be fitted with-

   (a)  no tyres other than anti-static tyres each of which has an electrical
        resistance which complies with British Standard 2050; or

   (b)  an anti-static chain so that one end of the chain is effectively
        secured to the chassis of the tanker and the other end of the chain
        touches the ground.

16. The road tanker shall prominently and legibly display, in the English and
Chinese languages, in letters and characters not less than 120 millimetres in
height, the following notices-

   (a)  at the front end of the tanker-

"CAUTION LPG 小心石油氣";

   (b)  at the rear end of the tanker-

"CAUTION LPG-KEEP CLEAR 小心石油氣─不得駛近"; and

   (c)  at each side of the tanker-

"CAUTION LPG-NO SMOKING 小心石油氣─不准吸煙".

17. The name and telephone number of the person to be contacted in the event
of an emergency involving the road tanker shall be prominently and legibly
displayed in the English and Chinese languages on each door of the cab of the
tanker.

18. Each valve fitted to the road tanker, other than a safety relief valve,
shall be prominently and legibly identified in the English and Chinese
languages.

PART 2

CYLINDER WAGONS

1. In this Part, unless the context otherwise requires- "compression ignition
engine" (壓燃式引擎) means a compression ignition engine within the
meaning of the Road Traffic (Construction and Maintenance of 
Vehicles) Regulations ( Cap 374 sub. leg. A).

2. The cylinder wagon and its equipment shall be in good and efficient working
order and in such condition as not to be likely to cause danger to any person
upon the wagon or upon a road.

3. The cargo compartment of the cylinder wagon shall-

   (a)  be well-ventilated;

   (b)  have a fixed roof constructed of fire-resistant material;

   (c)  be effectively screened with fire-resisting shields from-

        (i)    the interior of the cab;

        (ii)   the fuel tank;

        (iii)  the electrical generator;

        (iv)   the engine;

        (v)    the batteries, switch gear and fuses; and

        (vi)   the engine exhaust system, of the wagon;

   (d)  if the wagon is designed to carry other goods, be-

        (i)    situated at the rear-most section of the wagon; and

        (ii)   separated from any other compartment containing such goods by a
               partition made of mild steel fitted flush to the floor, roof
               and sides of the compartment; and

   (e)  be capable of being locked.

4. The engine of the cylinder wagon shall be-

   (a)  a compression-ignition engine;

   (b)  provided with an air inlet system which prevents-

        (i)    over-running of the engine to destruction; and

        (ii)   flame propagation due to engine back-fire; and

   (c)  constructed and so situated or protected so as to avoid any danger to
        any cylinder carried by the wagon.

5. The fuel tank of the cylinder wagon shall be-

   (a)  of double case construction;

   (b)  fitted with a lock to the filling hole cover;

   (c)  so placed that, in the event of a leak from the tank, fuel can only
        drain to the ground;

   (d)  separated from the cab of the wagon; and

   (e)  suitably protected against impact.

6. A means of-

   (a)  cutting off the supply of fuel to the engine of the cylinder wagon;
        and

   (b)  stopping that engine, shall be provided in a position which is-

        (i)    outside the cab of the wagon;

        (ii)   easily accessible; and

        (iii)  identified, in the English and Chinese languages, by a notice
               prominently and legibly stating-

"EMERGENCY ENGINE STOP 緊急停車掣".

7. All electrical apparatus in the cylinder wagon shall be so constructed and
installed as to adequately against the risk of short circuit and the outbreak
of fire.

8. All electrical apparatus which is in any enclosed area of the cylinder
wagon where an accumulation of liquefied petroleum gas in vapour form may
occur shall be suitable for use in Zone 1 areas as defined in British Standard
Code of Practice 5345 : Part 2 : 1983.

9. The cylinder wagon shall prominently and legibly display at each side and
at the rear of the wagon, in the English and Chinese languages, in letters and
characters not less than 120 millimetres in height, the following notice-

"NO SMOKING 不准吸煙".

10. The name and telephone number of the person to be contacted in the event
of an emergency involving the cylinder wagon shall be prominently and legibly
displayed in the English and Chinese languages on each door of the cab of the
wagon. (Enacted 1990) "compression ignition engine" (燃式引擎) "overall
height" (總高度) "vessel" (盛器)