GASHOLDERS EXAMINATION REGULATIONS

GASHOLDERS EXAMINATION REGULATIONS

GASHOIDERS EXAMINATION REGULATIONS

(Cap. 54, section 3)

[30 March 1972.]

1. These regulations may be cited as the Gasholders Examination
Regulations.

2. In these regulations, unless the context otherwise requires

cc 'competent person', in relation to any duty to examine a gasholder

under these regulations, means a person who is competent to perform
the duty by virtue of his practical and theoretical training and actual
experience;

'Government Surveyor' means the Principal Surveyor of Boilers and
Pressure Receivers appointed under section 4 of the Boilers and
Pressure Receivers Ordinance.

3. (1) The proprietor of a gasholder shall cause it to be examined
externally by a competent person

(a) before it is first put into use; and

(b) after it is put into use, at least once in every month.

(1A) An examination under paragraph (1)(a) shall be carried out in
the presence of the Government Surveyor.

(2) An examination under paragraph (1), and any work carried out in
connexion therewith, shall be done in an efficient and workmanlike
manner.

(3) When, on an examination under this regulation, any defect in a
gasholder is discovered, the proprietor thereof shall, as practicable,
cause a report in writing to be delivered to the Government surveyor which
shall contain a full description of the defect and of any work carried out
in connexion therewith.

(4) Where such defect is in the sheeting or sealing arrangements or
materially affects the safety of gasholder the report shall be
delivered to Gevernment Sureyor within 24 hours after the
discovery of defect.

(5) The proprietor of a gasholder shall cause full and up to date
records to be kept of all examinations and works carried out under this
regulation and shall make such records available for inspection
by the Government Surveyor.

4. (1) The proprietor of a gasholder shall-

(a)cause to be carried out, in the presence of the
Government sureyer an external examination of the
gasholder once in the period between 1 January and 31 March
in every year; and





(b) within 4 after such examination, submit a report to
the Government Surveyor which shall-

(i) in the case of a water-sealed gasholder, be in the form set
out in the Schedule;

(ii) in any other case, be in such form and contain such
particulars as the Government Surveyor may require.

(2) [Deleted, L.N. 55/80.]

5. (1) Subject to regulation 6, the proprietor of a gasholder shall, as
soon as is practicable after the expiration of 20 years from the date of
construction of the gasholder, and thereafter once in every period of 10
years, cause it to be thoroughly examined internally in order to ascertain
the condition of its internal structure and of the surfaces of the sheeting
and scaling arrangements.

(2) Every examination under paragraph (1) shall carried out
by a competent person in the presence of the Government Surveyor.

6. (1) The Government Surveyor may permit a gasholder to
be examined in such a manner as he may direct in lieu of the thorough
internal examination specified in regulation 5.

(2) Whenever a gasholder is examined in the manner directed
by the Government Surveyor under paragraph (1) a thorough
internal examination thereof as specified in regulation 5 shall be
carried out as soon as practicable thereafter.

7. Where, under regulation 6(1), the Government Surveyor directs that a
gasholder be examined by cutting samples from the crown and sides of
the holder, all samples so cut shall be marked in such a way as to make
them readily identifiable and shall be kept available for inspection at any
time.

8. The Government Surveyor may at any time-

(a) cause a gasholder to be examined;
(b)as a consequence of any examination of a gasholder carried out
under these regulations, require or cause to be carried out such
works or other action as he, after consultation with the
proprietor of the gasholder, considers necessary in connexion
with safety of persons or property;

(c)cause the records referred to in regulation 3(5) to be inspected.

9. (1) The proprietor of a gasholder shall be liable for all expenses
incurred in any examination, or work carried out as a consequence of
such examination, of the gasholder under these regulations.

(2) Any such expenses shall be recoverable from the proprietor as a
civil debt due to the Crown.





10. A proprietor who contravenes regulation 3, 4, 5, 6(2) or 7, or fails
to carry out any requirement under regulation 8(b), shall be guilty of an
offence and shall be liable on conviction to a fine of $50,000.

SCHEDULE [reg. 4.1

FORM

ANNUAL GASHOLDER INSPECTION AND MAINTENANCE RECORD

WATER-SEALED GASHOLDER
Name of proprietor:
Gasholder number.
Gas stored:
Built in (date): by:

Type (i.e. column, spiral or rope guided):
Capacity (exclusive of crown):
Lifts-Diameter and depth of, and pressure thrown by each lift:
Guide framing-Construction:
Crown-Rise:
Number and Type of Manholes:
Position and Number of Gas and Air Vents:
Sheets-Thickness of crown sheets:
Thickness of side sheets:
Cups and grips-Size and construction:
Top Curb and Crown Framing:
Type of Ladder:
Tank-Diameter:
Depth:
Construction:
Position in relation to ground-level:
Rest Blocks:
Number:
Size:
Material used for construction of-
(a) Gasholder:
(b) Tank:
Inlet and Outlet Connexions-Size:

Position of each:

Together or separated:
Date of inspection:
Inspection made by:
Government Surveyor:

1.Framing:
Condition of-
(a) Columns.
(b) Girders
(c) Junction of girders and columns.
(d) Wind bracing.
(e) Ladder or staircase and handrail.





2. Lifts: (a) Top Lift: (i) External condition of crown
sheets. (ii) Number of patches on crown sheets.

(iii) Condition of ladder or staircase and handrail (including crown
handrails).

(iv) Condition of carriages and rollers.
(v) State of roller lubrication. (vi)
Condition of crown paintwork.

(vii) External condition of side sheets.

(viii) Number of patches on side sheets.

(ix) Condition of side paintwork.
(x) Condition of cup and deposits and leakage, and effective
depth of seal.
(xi) State of inflation at the time of inspection.
(b) Second Lift:
(i) External condition of side sheets.
(ii) Number of patches.
(iii) Condition of ladder or staircase and handrail.
(iv) External condition of cup and grip.
(v) Cup deposits and leakage and effective depth of seal.
(vi) Condition of carriages and rollers.

(vii) State of roller lubrication.

(viii) Condition of paintwork. (ix) State of inflation at the
time of inspection. (c) Third Lift:

(i) External condition of side sheets. (ii) Number of
patches. (iii) Condition of ladder or staircase and handrail.
(iv) External condition of cup and grip. (v) Cup deposits
and leakage and effective depth of seal. (vi) Condition of
carriages and rollers.

(vii) State of roller lubrication.

(viii) Condition of paintwork. (ix) State of inflation at the
time of inspection. (d) Bottom Lift:

(i) External condition of side sheets. (ii) Number of
patches. (iii) Condition of ladder or staircase and
handrail. (iv) External condition of grip. (v)
Condition of carriages and rollers. (vi) State of roller
lubrication. (vii) Condition of bottom curb.

(viii) Condition of bottom carriages and rollers.
(ix) Condition of paintwork.

3. Tank:
(a) External condition of side plates.
(b) Condition at water level.
(c) Condition of ground level.
(d) Level of water-overflow.
(e) Deposits and leakages.
(f) Condition of carriages and rollers.
(g) State of roller lubrication.
(h) Condition of paintwork.
(i) Condition of ladder or staircase, handrail and balcony.





4. Measurements:
(a) Horizontal measurements from lift to lift at:
North point at top cup:
South point at top cup:
East point at top cup:
West point at top cup:
North point at second cup:
South point at second cup:
East point at second cup:
West point at second cup:
North point at third cup:
South point at third cup:
East point at third cup:
West point at third cup:
North point at tank top:
South point at tank top:
East point at tank top:
West point at tank top:
(b) Vertical measurements from top of grip to water level at:
North point at top cup:
South point at top cup:
East point at top cup:
West point at top cup:
North point at second cup:
South point at second cup:
East point at second cup:
West point at second cup:
North point at third cup:
South point at third cup:
East point at third cup:
West point at third cup:
North point at tank top:
South point at tank top:
East point at tank top:
West point at tank top:
(c) Positions of rollers relative to guides on each lift.5. Pressure:
Unusual variations in pressure records:
6. Repairs and paintwork carried out since last annual inspection:
7. General observations:
L.N. 74/72. L.N. 55/80. Citation. Interpretation. L.N. 55/80. (Cap. 56.) Monthly examination of gasholders. L.N. 55/80. Annual examination of gasholders. L.N. 55/80. Schedule. Internal examination of gasholders. L.N. 55/80. Government Surveyor may direct the manner of examination. Examination cutting samples. Additional powers of the Government Surveyor. Proprietor liable for expenses. Penalties. L.N. 55/80.

L.N. 74/72. L.N. 55/80. Citation. Interpretation. L.N. 55/80. (Cap. 56.) Monthly examination of gasholders. L.N. 55/80. Annual examination of gasholders. L.N. 55/80. Schedule. Internal examination of gasholders. L.N. 55/80. Government Surveyor may direct the manner of examination. Examination cutting samples. Additional powers of the Government Surveyor. Proprietor liable for expenses. Penalties. L.N. 55/80.

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