【法规名称】
【法规编号】 58628 什么是编号？
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第7页 CAP 106B TELECOMMUNICATIONS (CONTROL OF INTERFERENCE) REGULATIONS
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[接上页] Frequency Range (MHz) Interference Voltage Limit (dBμV) [5] Quasi-peak Average* 0.15-0.35 66-59 [6] 59-49 [6] 0.35-5 59 49 5-30 64 54 (ii) with rated power of motor** above 700 W and not exceeding 1000 W: Frequency Range (MHz) Interference Voltage Limit (dBμV) [5] Quasi-peak Average* 0.15-0.35 70-63 [6] 63-53 [6] 0.35-5 63 53 5-30 68 58 (iii) with rated power of motor** above 1000 W: Frequency Range (MHz) Interference Voltage Limit (dBμV) [5] Quasi-peak Average* 0.15-0.35 76-69 [6] 69-59 [6] 0.35-5 69 59 5-30 74 64 Note: [5] At the transition frequency, the lower limit applies. [6] The voltage limit decreases linearly with the logarithm of the frequency. 2. Continuous radiated interference Interference power limits for the frequency range 30 MHz to 300 MHz: (a) Household appliances and similar apparatus: Frequency Range (MHz) Interference Voltage Limit (dBμV) Quasi-peak Average* 30-300 45-55 [7] 35-45 [7] Note: [7] The power limit increases linearly with the logarithm of the frequency. (b) Portable tools (i) with rated mains power** up to and including 700 W: Frequency Range (MHz) Interference Voltage Limit (dBμV) Quasi-peak Average* 30-300 45-55 [8] 35-45 [8] (ii) with rated mains power** above 700 W up to and including 1000 W: Frequency Range (MHz) Interference Voltage Limit (dBμV) Quasi-peak Average* 30-300 49-59 [8] 39-49 [8] (iii) with rated mains power** above 1000 W: Frequency Range (MHz) Interference Voltage Limit (dBμV) Quasi-peak Average* 30-300 55-65 [8] 45-55 [8] Note: [8] The power limit increases linearly with the logarithm of the frequency. * If the average limit is met when using a quasi-peak detector receiver, the test unit shall be deemed to meet both limits and measurement with the average detector receiver need not be carried out. ** The power of any heating device is to be excluded. 3. Discontinuous interference The limits for continuous conducted interference specified in paragraph 1, as increased by the following amount, apply- (a) 44 dB (for N (Note 1) < 0.2); (b) 20 log 10 30/N dB (for 0.2 ≦ N ≦ 30); (c) 0 dB (for N > 30). Note- 1. N is the click rate determined from the formula N = n/T, T being 120 minutes or the observation time in minutes, whichever is less to produce 40 clicks (Note 2), and n being the number of clicks registered during the observation time. 2. A click is defined as a disturbance which- (a) exceeds the maximum limit specified in paragraph 1; (b) lasts not more than 200 ms; and (c) is separated from a subsequent disturbance by at least 200 ms. 3. The apparatus under test shall be deemed to comply with the maximum limit if not more than a quarter of the number of clicks registered during the observation time exceed such limit. (L.N. 153 of 1993) Cap 106B Sched 2 LIMITS OF INTERFERENCE VOLTAGE OR RADIATED INTERFERENCE FIELD FOR THE PURPOSES OF REGULATION 7A* [regulation 7A] * Applicable only during the period of 1 year beginning on the commencement of the Telecommunication (Control of Interference) (Amendment) Regulation 1993 (L.N. 153 of 1993). PART I IGNITION APPARATUS OF INTERNAL COMBUSTION ENGINES Limits of radiated interference based on quasi-peak measurement measured at a distance of 10 m. Frequency Range (MHz) Field Strength Limit (μV/m) 0.2-30 30-220 100 100 PART II SOUND AND TELEVISION BROADCAST RECEIVERS Limits of conducted interference and radiated interference. 1. Conducted interference (a) AM sound broadcast receivers interference voltage injected into the mains Frequency Range (MHz) Interference Voltage Limit (μV) 0.2-1.605 1500 (b) FM sound broadcast receivers and television broadcast receivers (local oscillator voltage at main terminals) Frequency Range (MHz) Interference Voltage Limit (μV) 30-220 500 (c) Television broadcast receivers interference voltage injected into the mains (time-base terminal voltage) Frequency Range (MHz) Interference Voltage Limit (μV) 0.2-0.55 over 0.55-1.605 200 100 2. Radiated interference (a) FM sound broadcast receivers and television broadcast receivers (local oscillator field) Frequency Range (MHz) Field Strength Limit at a distance of 3 m (μV/m) 30-100 over 100-220 300 500 (b) Television broadcast receivers (time-base field) Frequency Range (MHz) Field Strength Limit at a distance of 3 m (μV/m) 0.2-1.605 100 PART III EQUIPMENT BELONGING TO ANY CLASS OF APPARATUS SPECIFIED IN REGULATION 2(1)(b), (d) OR (e) Limits of conducted interference and radiated interference. 1. Conducted interference Frequency Range (MHz) Interference Voltage Limit (μV) 0.2-1.605 over 30-220 1500 750 2. Radiated interference Frequency Range (MHz) Field Strength Limit at a distance of 3 m (μV/m) 0.2-30 over 30-220 100 50 PART IV EQUIPMENT, OTHER THAN EQUIPMENT BELONGING TO ANY CLASS REFERRED TO IN PART I, II, III, THAT IS NOT CONNECTED TO A DISTRIBUTION SYSTEM (配电系统)* * "Distribution System" means any system for conveying electrical energy from one place to another. Limits of radiated interference. Frequency Range (MHz) Field Strength Limit at a distance of 3 m (μV/m) 0.2-30 over 30-220 100 50 (L.N. 153 of 1993) |
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