CSA C22.2 No. 60335-2-72:21

(IEC 60335-2-72:2016, MOD)

National Standard of Canada

CSA C22.2 No. 60335-2-72:21

Household and similar electrical appliances — Safety —

Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use (IEC 60335-2-72:2016, MOD)

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  CSA C22.2 No. 60335-2-72:21

  June 2021

  
  

  Title: Household and similar electrical appliances — Safety — Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

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National Standard of Canada

CSA C22.2 No. 60335-2-72:21

Household and similar electrical appliances — Safety — Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

(IEC 60335-2-72:2016, MOD)

Note: For brevity, this Standard will be referred to as “CSA C22.2 No. 60335-2-72” throughout.

JUNE 4, 2021

This national standard is based on publication IEC 60335-2-72, Fourth Edition (2016).

Prepared by

International Electrotechnical Commission

Reviewed by

CSA Group

CSA C22.2 No. 60335-2-72:21

Second Edition

(IEC 60335-2-72:2016, MOD)

Underwriters Laboratories Inc. UL 60335-2-72

Second Edition

ICS 97.080

ANSI/UL 60335-2-72-2021

JUNE 4, 2021 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 3

CONTENTS

PREFACE 9

NATIONAL DIFFERENCES 11

FOREWORD 13

INTRODUCTION 17

1. Scope 19

   1DV.1 Modify Clause 1 of the Part 2 by replacing the paragraph and dashed list following Note 102 with the following: 20

   1DV.2 Modify Clause 1 of the Part 2 by replacing the first four dashed items and the ninth dashed item following “This standard does not apply to” with the following: 21

   1DV.3 Modify Clause 1 of the Part 2 by adding the following: 21

   1DV.4 Modify Clause 1 of the Part 2 by adding the following: 21

   1DV.5 Modify Clause 1 of the Part 2 by adding the following note: 21

2. Normative references 22

   2DV.1 Modify Clause 2 of the Part 2 by adding the following normative references: 22

3. Terms and definitions 24

3.1.9.103DV Replace the first paragraph of the Part 2 with the following: 25

3.4.2DV Modification by replacing 3.4.2DV of the Part 1 with the following: 25

3.121DV Delete 3.121 of the Part 2: 28

1. DV Add the following definition to Clause 3 of the Part 2: 28

2. DV Add the following definition to Clause 3 of the Part 2: 29

3. DV Add the following definition to Clause 3 of the Part 2: 29

1. General requirement 29

   4DV.1 Modification to the third paragraph of Clause 4 of the Part 2 by replacing “cause no danger to person or surroundings” with “reduce the risk of fire, electric shock, and/or injury to persons”. 30

   4DV.2 Modification of Clause 4 by adding the following: 30

2. General conditions for the tests 30

   5.14DV Modification of 5.14 of the Part 1 by adding the following NOTE: 30

3. Classification 31

4. Marking and instructions 31

   1. DV.1 Modify 7.1 of the Part 2 by adding the following dashed item after the 4th dashed item: 31

      7.1DV.2 Modify 7.1 of the Part 2 by adding the following dashed item after the second dashed item below NOTE 102: 32

      7.1.103DV Add the following clause to 7.1 of the Part 2: 33

      1. Information on noise 36

      2. Information on vibration 36

      7.12.104DV Add 7.12.104DV.1 and 7.12.104DV.2 to 7.12 of the Part 2: 36

      7.14.101DV Add 7.14.101DV to 7.14 of the Part 2 as follows: 38

      7.16DV Modification of 7.16 of the Part 1 by deleting the NOTE: 39

5. Protection against access to live parts 39

   8.1.101 Battery connectors for BLV 40

6. Starting of motor-operated appliances 40

   9DV.2 Modification by replacing the text of 9DV.2 in the Part 1 with the following: 40

   9DV.5A Add 9DV.5A to Clause 9 of the Part 1 as follows: 40

7. Power input and current 41

8. Heating 41

   11.3DV Modification of 11.3 of the Part 1 by replacing the paragraph following NOTE 3 with the following: 41

9. Void. 41

   4 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 JUNE 4, 2021

10. Leakage current and electric strength at operating temperature 41

    13.1.101DV Add 13.1.101DV to 13.1 of the Part 1: 41

    13.2DV Delete 13.2 of the Part 2: 42

11. Transient overvoltages. 42

12. Moisture resistance 42

13. Leakage current and electric strength 44

    1. DV Modification to add the following to 16.1 of the Part 1: 44

14. Overload protection of transformers and associated circuits. 44

15. Endurance 44

16. Abnormal operation 44

17. Stability and mechanical hazards 45

    1. Replacement: 45

20.109DV Modification to replace Clause 20.109 of the Part 2 with 20.109DV.1 and 20.109DV.2: 49

1. Hopper 50

2. Fuel tank 51

3. Internal combustion engine powered machines using liquefied petroleum gas 51

1. Mechanical strength 51

   21.1DV Modification of 21.1 of the Part 2 by addition of the following note: 52

2. Construction 53

   22.3DV Modification to add the following text to 22.3DV of the Part 1: 54

   22.6.101DV Add 22.6.101DV.2 to 22.6.101DV.3 to 22.6 of the Part 2: 54

   22.7DV Modification by adding the following to 22.7 of the Part 2: 55

   22.9DV Modification by adding the following to 22.9 of the Part 1: 55

   22.112 Guards 57

   22.118DV Add 22.118DV to the Part 2: 58

3. Internal wiring 59

1. DV Add the following clause to the Part 2: 59

2. DV Add the following clause to the Part 2: 59

3. DV Add Clauses 23.105DV.1 to 23.105DV.3 59

1. Components 59

   1. DV Modification by adding the following text to 24.1 of the Part 1: 60

      24.1.3ADV Add 24.1.3ADV.1 and 24.1.3ADV.2 to 24.1 of the Part 1: 60

      24.104DV Add 24.104DV.1 to 24.104DV.3 to the Part 2: 62

2. Supply connection and external flexible cords 62

   1. DV Modification by adding the following to 25.1 of the Part 2: 62

      25.7DV Modification by replacing the text of 25.7 of the Part 2 with the following: 63

      25.22DV Modification by adding the following to 25.22 of the Part 1: 64

3. Terminals for external conductors 64

4. Provision for earthing 64

5. Screws and connections 64

6. Clearances, creepage distances and solid insulation 64

7. Resistance to heat and fire 64

   30.2DV Modification by adding the following text and NOTE to 30.2 of the Part 2: 65

8. Resistance to rusting 65

9. Radiation, toxicity and similar hazards 65

Figure 107DV Add the following figure to the Part 2: 70

Annexes

Annex A (informative) Routine tests

ADV.1 Modify Annex A by replacing “informative” with “normative.” 72

ADV.2 Modify Annex A of the Part 1 by adding the following to the Introduction: 72

JUNE 4, 2021 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 5

A.2 Electric strength test 72

Annex B (normative) Appliances powered by rechargeable batteries that are recharged in the appliance

3 Terms and definitions 75

5 General conditions for the tests 75

1. Marking and instructions 75

2. Protection against access to live parts 76

3. Starting of motor-operated appliances 77

11 Heating 77

13 Leakage current and electric strength at operating temperature 77

13.1DV.1 Delete 13.1DV.1 of the Part 1: 77

1. Moisture resistance 77

2. Leakage current and electric strength 77

   16.1DV Delete Clause 16.1DV of the Part 1: 78

3. Overload protection of transformers and associated circuits. 78

4. Endurance 78

5. Abnormal operation 78

22 Construction 79

1. Components 80

   24.B.101DV Add the following Clause to Annex B of the Part 1: 80

2. Supply connection and external flexible cords 81

Annex D (normative) Thermal motor protectors

DDV Modification by replacing all of Annex D of the Part 1 following the first paragraph with the following: 82

Annex L (informative) Guidance for the measurement of clearances and creepage distances

Annex S (normative) Battery-operated appliances powered by batteries that are non-rechargeable or not recharged in the appliance

3 Terms and definitions 84

1. Marking and instructions 84

2. Protection against access to live parts 84

11 Heating 84

13 Leakage current and electric strength at operating temperature 84

1. Leakage current and electric strength 85

2. Overload protection of transformers and associated circuits. 85

19 Abnormal operation 85

22 Construction 86

Annex AA (normative) Precast paving slabs

Annex BB (normative) Requirements for internal combustion engine powered machines using liquefied petroleum gas (LPG)

BB.1 Containers 89

BB.1.1 General 89

BB.1.2 Containers to be filled by the user 89

BB.1.3 Removable containers 90

6 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 JUNE 4, 2021

BB.1.4 LP-gas container bracket load test 90

BB.1.5DV Add BB.1.5DV to Clause BB.1 of the Part 2: 90

BB.2 LPG piping and hoses 90

BB.2DV Add BB.2DV.1 to BB.2DV.3 to the Part 2: 91

BB.3 Equipment 92

BB.3DV Add BB.3DV.1 to the Part 2: 92

BB.4DV Add BB.4DV and Figure BB.1DV to Annex BB of the Part 2: 92

Annex CC (normative) Falling-object protective structures (FOPS) – Dynamic test and performance requirements

1. Mechanical strength 94

2. Construction 94

Annex DD (informative) Emission of acoustical noise

DD.1 Noise reduction 97

DD.2 Noise test code 97

DD.2.1 Emission sound pressure level determination 97

DD.2.2 Sound power level determination 97

DD.2.3 Operating conditions 97

DD.2.4 Measurement uncertainties 98

DD.2.5 Information to be recorded 98

DD.2.6 Information to be reported 98

DD.2.7 Declaration and verification of noise emission values 98

Annex EE (informative) Emission of vibration

EE.1 Reduction of vibration 100

EE.2 Information on vibration emission 100

Annex DVA (informative) Component standards cross reference

Table DVA.1DV Modification of Table DVA.1 of the Part 1 by adding the following rows: 101

Annex 101. DVA (informative) Requirements for internal combustion engine powered machines using fuels such as, but not limited to, ethanol-gasoline blends, gasoline, biodiesel, and diesel

Annex 101.DVA Add Annex 101.DVA to the Part 2 as follows: 102

Annex 101.DVB (normative) Component standards

Annex 101.DVB Add Annex 101.DVB to the Part 2 as follows: 111

Annex 101.DVC (normative) Tabs used in electrical quick-connect terminals

Annex 101.DVC Add Annex 101.DVC to the Part 2 as follows: 113

Annex 101.DVD (normative) Additional requirements for Type S machines

Annex 101.DVD Add Annex 101.DVD to the Part 2 as follows: 121

Annex 101.DVE (normative) Additional requirements for Type EE machines

JUNE 4, 2021 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 7

Annex 101.DVE Add Annex 101.DVE to the Part 2 as follows: 128

Annex 101.DVF (Canada only) (normative) French marking translations

Annex 101.DVF Add Annex 101.DVF to the Part 2 as follows: 131

Bibliography

JUNE 4, 2021 CSA C22.2 No. 60335-2-72:21 ♦ UL 60335-2-72 19

HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –

Part 2-72: Particular requirements for floor treatment machines with or without traction drive, for commercial use

1 Scope

This clause of Part 1 is replaced by the following.

This International Standard deals with the safety of powered ride-on and powered WALK-BEHIND MACHINES

intended for commercial indoor or outdoor use for the following applications:

• sweeping,

  
  

• scrubbing,

  
  

• wet or dry pick-up,

  
  

• polishing,

  
  

• application of wax, sealing products and powder based detergents,

  
  

• shampooing

of floors with an artificial surface.

Their cleaning motion is more linear than lateral or periodic.

NOTE 101 By contrast, the cleaning motion of machines covered by IEC 60335-2-67 is more lateral or periodic than linear.

NOTE 102 This standard applies to machines for COMMERCIAL USE. The following list, although not comprehensive, gives an indication of locations that are included in the scope:

• public use areas such as hotels, schools, hospitals;

  
  

• industrial locations, for example factories and manufacturing shops;

  
  

• retail outlets, for example shops and supermarkets;

  
  

• business premises, for example offices and banks;

  
  

• all uses other than normal housekeeping purposes.

  
  

  They may be equipped with a TRACTION DRIVE system. The following power systems are covered:

  
  

• internal combustion engines,

  
  

• mains powered motors up to a RATED VOLTAGE of 250 V for single-phase appliances and 480 V for other appliances,

  
  

• battery powered motors.