1964_TELECOMMUNICATION_(CONTROL_OF_INTERFERENCE)_REGULATIONS — Page 8

B 8

CAP. 106]

Telecommunication (Control of Interference) Regulations

[Subsidiary]

[1972 Ed.

Schedule.

(a) that the noise voltage at the electric supply line terminals of the apparatus when it is used at any frequency within the defined frequency range does not exceed the given number (if any) of microvolts for that frequency range:

Provided that this sub-paragraph shall not apply in respect of any apparatus that is designed for connexion at its terminals to a distribution system having a declared voltage between conductors greater than 750 volts or a declared voltage between any one conductor and earth greater than 375 volts; and

(b) that the field-strength of the electro-magnetic energy radiated in any direction from the apparatus when it is used at any frequency within the defined frequency range does not exceed the given number (if any) of micro-volts per metre for that frequency range at any distance of not less than the given distance for the same frequency range.

(2) (a) In paragraph (1), "the defined frequency range" means, in relation to any apparatus, the frequency range or, where there is more than one, any of the frequency ranges specified in either the third or the sixth column of the Schedule for the class and sub-division, if any, of the class (indicated in the first column of the Schedule) to which the apparatus belongs according as to whether the expression is used in respect of noise voltage at electric supply line terminals or in respect of field-strength of radiated electro-magnetic energy.

(b) In paragraph (1)(a) "the given number (if any) of micro-volts" means, in relation to any apparatus belonging to any class or sub-division of a class indicated in the first column of the Schedule, the number (if any) of microvolts specified in the second column of the Schedule for that class or sub-division.

(c) In paragraph (1)(b)—

"the given number (if any) of microvolts per metre", means, in relation to any apparatus belonging to any class or sub-division of a class indicated in the first column of the Schedule, the number (if any) of microvolts per metre specified in the fourth column of the Schedule for that class or sub-division; and

"the given distance" means, in relation to any apparatus belonging to any class or sub-division of a class indicated in the first column of the Schedule, the distance specified or referred to in the fifth column of the Schedule for that class or sub-division.