TNAG-0809-FCO40-1014-Legislation-for-Crown-lands-in-Hong-Kong-1978 — Page 160

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Ord. No. 67/78

Amendment of section 44.

Repeal of section 46.

BOILERS AND PRESSURE RECEIVERS (AMENDMENT)

(b) by inserting the following subsection-

"(1) Every pressure accumulation test to which a boiler is subjected for the purposes of this Ordinance shall be carried out—

(a) under full firing conditions;

(b) with the feed water shut off; and

(c) with the stop valves closed except to the extent that it is necessary for any stop valve to be open to supply steam to auxiliary equipment for the purposes of the test.".

21. Section 44 of the principal Ordinance is amended-

(a)

in subsection (1) by deleting "an existing boiler or pressure receiver that is being examined for the purposes of section 23 or of";

(b) in subsection (3)(b) by deleting "plus fifty pounds per square

inch"; and

(c) by deleting subsection (4) and substituting the following—

“(4) An hydraulic test of an air receiver shall, in relation to the pressure that will be specified in the certificate of fitness as the maximum permissible working pressure of the air receiver, be as follows-

(a) in the case of a seamless steel air bottle-

(i) shall be to twice that pressure where the maximum permissible working pressure does not exceed 2,000 pounds per square inch (or the SI equivalent namely 13.789 megapascals);

(ii) shall be to that pressure plus 2,000 pounds per square inch (or the SI squivalent namely 13.789 megapascals) where the maximum permissible work- ing pressure exceeds 2,000 pounds per square inch but does not exceed 4,000 pounds per square inch (or the SI equivalent namely 27.579 megapascals); and

(iii) shall be to one and one-half times that pressure where the maximum permissible working pressure exceeds 4,000 pounds per square inch (or the SI equivalent namely 27.579 megapascals); and (b) in the case of other air receivers-

(i) shall be to twice that pressure where the maximum permissible working pressure does not exceed 100 pounds per square inch (or the SI equivalent namely 689.476 kilopascals); and

(ii) shall be to one and one-half times that pres- sure plus 50 pounds per square inch (or the SI equivalent namely 344.738 kilopascals) where the maximum permissible working pressure exceeds 100 pounds per square inch (or the SI equivalent namely 689.476 kilopascals).".

22. Section 46 of the principal Ordinance is repealed.