EN 60335-2-67:2012

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirement
5 General conditions for the tests
6 Classification
7 Marking and instructions
8 Protection against access to live parts
9 Starting of motor-operated appliances
10 Power input and current
11 Heating
12 Void
13 Leakage current and electric strength at operating
   temperature
14 Transient overvoltages
15 Moisture resistance
16 Leakage current and electric strength
17 Overload protection of transformers and associated
   circuits
18 Endurance
19 Abnormal operation
20 Stability and mechanical hazards
21 Mechanical strength
22 Construction
23 Internal wiring
24 Components
25 Supply connection and external flexible cords
26 Terminals for external conductors
27 Provision for earthing
28 Screws and connections
29 Clearances, creepage distances and solid insulation
30 Resistance to heat and fire
31 Resistance to rusting
32 Radiation, toxicity and similar hazards
Annexes
Annex AA (normative) - Precast paving slabs
Annex BB (normative) - Requirements for internal combustion
         engine powered machines using liquefied petroleum
         gas (LPG)
Annex CC (normative) - Emission of acoustical noise
Annex DD (normative) - Emission of vibration
Bibliography
Annex ZA (normative) - Special national conditions
Annex ZC (normative) - Normative references to international
         publications with their corresponding European publications
Annex ZE (informative) - Specific additional requirements for
         appliances and machines intended for commercial use
Annex ZZ (informative) - Coverage of Essential Requirements of
         EU Directive 2006/42/EC

IEC 60335-2-67:2012 deals with the safety of powered floor treatment machines intended for commercial indoor or outdoor use for the following applications: - scrubbing, - wet or dry pick-up, - polishing and dry buffing, - application of wax, sealing products and powder based detergents, - shampooing, - stripping, grinding and scarifying of floors with an artificial surface. Their cleaning motion is more lateral or periodic than linear. 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 are not equipped with a traction drive. 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. Battery powered machines may be equipped with a built-in battery charger. This fourth edition cancels and replaces the third edition published in 2002 and its Amendment 1 (2005). It constitutes a technical revision. The principal changes in this edition as compared with the third edition of IEC 60335-2-67 are as follows (minor changes are not listed): - the title has been changed for better distinction with regard to IEC 60335-2-72; - the scope has been revised editorially to avoid misunderstandings; - terms and definitions has been revised with regard to the requirements revised; - the standard has been revised in general and updated regarding state-of-the-art, as far as necessary, in particular some changes have been made to Clauses 15, 22 and 25; - a new Annex BB (LPG requirements) was added; - a new Annex CC 'Emission of acoustical noise' was added; - and a new Annex DD 'Emission of vibration' was added. Keywords: Floor treatment machine; Water-suction cleaning machine