Table of Contents

1 Scope

2 Normative References

3 Definitions

4 Limits Of Disturbance

4.1 Continuous Disturbance

4.1.1 Frequency Range 148, 5 KHz To 30 MHz (Terminal Voltages)

4.1.2 Frequency Range 30 MHz To 300 MHz (Disturbance Power)

4.1.3 Frequency Range 30 MHz To 1 000 MHz (Radiated Disturbances)

4.2 Discontinuous Disturbance

5 Methods Of Measurement Of Terminal Disturbance Voltages (148, 5 KHz To 30 MHz)

5.1 Measuring Devices

5.1.1 Measuring Receivers

5.1.2 Artificial Mains Network

5.1.3 Voltage Probe

5.1.4 Artificial Hand

5.1.5 Disturbance Analyser For Discontinuous Disturbance

5.2 Measuring Procedures And Arrangements

5.2.1 Arrangement Of The Leads Of The Equipment Under Test

5.2.2 Disposition Of Appliances Under Test And Their Connection To The Artificial Mains V-Network

5.2.3 Appliances Having Auxiliary Apparatus Connected At The End Of A Lead Other Than The Mains Lead

5.2.4 Regulating Controls Incorporating Semiconductor Devices

5.3 Reduction Of Disturbance Not Produced By The Equipment Under Test

6 Methods Of Measurement Of Disturbance Power (30 MHz To 300 MHz)

6.1 Measuring Devices

6.1.1 Measuring Receivers

6.1.2 Absorbing Clamp

6.2 Measurement Procedure On The Mains Lead

6.3 Special Requirements For Appliances Having Auxiliary Apparatus Connected At The End Of A Lead Other Than The Mains Lead

6.3.1 Measuring Arrangement

6.3.2 Measurement Procedure

6.4 Assessment Of Measuring Results

7 Operating Conditions And Interpretation Of Results

7.1 General

7.2 Operating Conditions For Particular Equipment And Integrated Parts

7.2.1 Multifunction Equipment

7.2.2 Battery Operated Equipment

7.2.3 Integrated Starting Switches, Speed Controls, Etc.

7.2.4 Thermostats

7.2.5 Thermostats – Alternative Procedure To That Specified In 7.2.4

7.2.6 Regulating Controls Incorporating Semiconductor Devices

v7.3 Standard Operating Conditions And Normal Loads

7.3.1 Motor-Operated Appliances For Household And Similar Purposes

7.3.2 Electric Tools

7.3.3 Motor-Operated Electromedical Apparatus

7.3.4 Electrical Heating Appliances

7.3.5 Automatic Goods-Dispensing Machines, Entertainment Machines And Similar Appliances

7.3.6 Electric And Electronic Toys

7.3.7 Miscellaneous Equipment And Appliances

7.4 Interpretation Of Results

7.4.1 Continuous Disturbance

7.4.2 Discontinuous Disturbance

8 Interpretation Of CISPR Radio Disturbance Limit

8.1 Significance Of A CISPR Limit

8.2 Type Tests

8.3 Compliance With Limits For Appliances In Large-Scale Production

8.4 The Banning Of Sales

Annex A (Normative) Limits Of Disturbance Caused By The Switching Operations Of Specific Appliances When The Formula 20 LG 30/N Is Applicable

Annex B (Informative) Example Of The Use Of The Upper Quartile Method To Determine Compliance With Disturbance Limits (See 7.4.2.6)

Annex C (Informative) Guidance Notes For The Measurement Of Discontinuous Disturbance (Clicks)

Bibliography

Figures

Figure 1 – Graphical Representation Of The Limits (See 4.1.1)

Figure 2 – Graphical Representation Of The Limits (See 4.1.1)

Figure 3 – Examples Of Discontinuous Disturbances Classified As Clicks (See 3.2)

Figure 4 – Examples Of Discontinuous Disturbance For Which The Limits Of Continuous Disturbance Apply (See 4.2.2.1). For Some Exceptions From This Rule See 4.2.3.2 And 4.2.3.4.

Figure 5 – Measuring Arrangement For Regulating Controls (See 5.2.4)

Figure 5a – Measurement Arrangement For Two-Terminal Regulating Controls

Figure 6 – Arrangement For Measurement Of Disturbance Voltage Produced At The Fence Terminal Of Electric Fence Energizers (See 7.3.7.2)

Figure 7 – Measuring Arrangement For Toys Running On Tracks

Figure 8 – Application Of The Artificial Hand (5.1.4 And 5.2.2.2

Figure 9 – Flow Diagram For Measurements Of Discontinuous Disturbance (See Annex C)

Tables

Table 1 – Terminal Voltage Limits For The Frequency Range 148, 5 KHz To 30 MHz (See Figures 1 And 2)

Table 2 – Disturbance Power Limits For The Frequency Range 30 MHz To 300 MHz

Table 3 – Radiated Disturbance Limits For Toys For The Frequency Range 30 MHz To 1 000 MHz At 10 M Distance From The Source

Table A.1 – Examples Of Appliances And Application Of Limits According To 4.2.2 And 4.2.3 For Which The Click Rate N Is Derived From The Number Of Clicks

Table A.2 – Examples Of Appliances And Application Of Limits For Which The Click Rate N Is Derived From The Number Of Switching Operations And The Factor F As Mentioned In The Relevant Operating Conditions