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1.—(1) In these regulations, except so far as the contrary is provided or the context otherwise requires, the following expressions have the meanings hereby respectively assigned to them:—
“ignition apparatus” means
and other expressions have the same meaning as they have in the Wireless Telegraphy Act 1949.
(2) The Interpretation Act 1889 applies to the interpretation of these regulations as it applies to the interpretation of an Act of Parliament.
2.—(1) This regulation applies to ignition apparatus forming part of an internal combustion engine other than an engine which forms part of an aircraft.
(2) The requirement referred to in regulation four shall be complied with in the case of any ignition apparatus to which this regulation applies if, on or after the date on which these regulations come into operation, that apparatus is, as being part of a vehicle, vessel or engine, to be sold otherwise than for export, or offered or advertised for sale otherwise than for export, or let on hire or offered or advertised for letting on hire, by any person who in the United Kingdom in the course of business assembles such apparatus as part of a vehicle, vessel or engine, or who in the course of business imports into the United Kingdom such apparatus already assembled as part of a vehicle, vessel or engine.
3.—(1) This regulation applies to:—
(a)ignition apparatus forming part of an internal combustion engine other than an engine which forms part of an aircraft or of a foreign vessel, except ignition apparatus which is proved by the person using it to have been assembled as part of a vehicle, vessel or engine before the date on which these regulations come into operation; and
(b)apparatus which includes one or more components designed to form part of the ignition apparatus of an internal combustion engine, and which is assembled for the purpose of testing or demonstrating the operation of one or more of those components, and which when used involves sudden changes of current in a high-voltage circuit.
(2) The requirement referred to in regulation four shall be complied with in the case of any apparatus to which this regulation applies, if the apparatus is to be used within the United Kingdom or the territorial waters adjacent thereto:—
(a)on land, or
(b)on the sea or in any estuary, within one hundred yards of any moored vessel or on the landward side of a line one hundred yards to seaward of low water mark, or
(c)on any water, other than the sea or an estuary:
(i)that suppressors were fitted to the apparatus by the manufacturer or builder of the vehicle, vessel or engine of which the apparatus forms part or by the importer of that vehicle, vessel or engine into the United Kingdom, and
(ii)that the suppressors so fitted remained fitted to the apparatus at the time of the use, or that suppressors having the same electrical characteristics had been correctly fitted to the apparatus at that time in substitution for those fitted as aforesaid, and in either case that the suppressors were then in good electrical and mechanical repair and condition, and
(iii)that the apparatus at the time of the use consisted of the same components as those which were fitted at the time when the vehicle, vessel or engine was manufactured or built, or that any components which had been substituted for those components had the same electrical characteristics and had been correctly fitted.
4.—(1) The requirement hereinbefore referred to is that the apparatus shall be so designed, constructed, assembled and installed, and that such precautions shall be taken in relation to it (by means of the fitting of suppressors or otherwise), as to ensure that the field-strength, as measured and computed in accordance with the next following paragraph, of the electro-magnetic energy radiated at any frequency between forty and seventy megacycles per second in any direction from the apparatus when it is used, does not exceed fifty microvolts per metre at any distance of not less than thirty-three feet measured as specified in paragraph 4 of Part 3 of the Schedule hereto.
(2) For the purpose of measuring and computing the field-strength of such electro-magnetic energy, the apparatus shall be tested by means of measuring apparatus of the description and having the physical and electrical characteristics and performance set out in Part 1 of the Schedule hereto, and the test shall be made by the method and under the conditions set out respectively in Parts 2 and 3 of the said Schedule. The field-strength of the electro-magnetic energy radiated as aforesaid from the apparatus shall be computed as provided in paragraph 5 of Part 2 of the said Schedule from the readings afforded by the measuring apparatus while the apparatus being tested is energised.
5.—(1) These regulations may be cited as “The Wireless Telegraphy (Control of Interference from Ignition Apparatus) Regulations 1952.”
(2) These regulations shall come into operation on the first day of July, 1953.
De La Warr
Her Majesty's Postmaster-General
Dated this 24th day of November, 1952