FOREWORD 4INTRODUCTION 71 Scope 82 Normative references 93 Terms and definitions 134 General requirements 205 General conditions for the tests 206 Radiation, toxicity and similar hazards 237 Classification 248 Marking and instructions 249 Protection against access to live parts 3510 Starting 3611 Input and current 3712 Heating 3713 Resistance to heat and fire 4214 Moisture resistance 4315 Resistance to rusting 4616 Overload protection of transformers and associated circuits 4717 Endurance 4718 Abnormal operation 4819 Mechanical hazards 5620 Mechanical strength 5821 Construction 6022 Internal wiring 7023 Components 7124 Supply connection and external flexible cords 7625 Terminals for external conductors 8226 Provision for earthing 8427 Screws and connections 8628 Creepage distances, clearances and distances through insulation 89Annex A (normative) Measurement of creepage distances and clearances 96Annex B (normative) Motors not isolated from the supply mains and having basicinsulation not designed for the rated voltage of the tool 101Annex C (normative) Leakage current 103Annex D (normative) Electric strength 106Annex E (informative) Methods of applying ISO 13849-1 to power tools 108Annex F (informative) Rules for routine tests 110Annex G Void 112Annex H (normative) Determination of a low-power circuit 113Annex I (informative) Measurement of noise and vibration emissions 114Annex J Void 129Annex K (normative) Battery tools and battery packs 130IEC 62841-1:2014 © IEC 2014 – 3 –Annex L (normative) Battery tools and battery packs provided with mains connection ornon-isolated sources 149Bibliography 167Figure 1 – Test fingernail 93Figure 2 – Flexing test apparatus 94Figure 3 – Overload test of a class II armature 95Figure A.1 – Clearance gap for parallel sided and V-shaped groove 97Figure A.2 – Clearance gap for rib and uncemented joint with groove 98Figure A.3 – Clearance gap for uncemented joint and diverging-sided groove 99Figure A.4 – Clearance gap between wall and screw 100Figure B.1 – Simulation of fault conditions 102Figure C.1 – Diagram for leakage current measurement for single-phase connection andthree-phase tools suitable for single-phase supply 104Figure C.2 – Diagram for leakage current measurement for three-phase connection 105Figure C.3 – Circuit of the leakage current meter 105Figure H.1 – Example of an electronic circuit with low-power points 113Figure I.1 – Test bench 126Figure I.2 – Positions of a hand-held power tool and microphones for the hemispherical/ cylindrical measurement surface 127Figure I.3 – Microphone positions on a cubic measurement surface 127Figure I.4 – Directions of vibration measurement 128Figure K.1 – Measurement of clearances 148Figure L.1 – Measurement of clearances 166Table 1 – Maximum normal temperature rises (1 of 2) 40Table 2 – Maximum outside surface temperature rises 42Table 3 – Maximum winding temperature 49Table 4 – Required performance levels 55Table 5 – Impact energies 58Table 6 – Test torques 59Table 7 – Switch trigger force 64Table 8 – Minimum cross-sectional area and AWG sizes of supply cords 78Table 9 – Pull and torque value 80Table 10 – Quick-connect terminals for earthing conductors 85Table 11 – Torque for testing screws and nuts 87Table 12 – Minimum creepage distances and clearances 90Table D.1 – Test voltages 106Table F.1 – Test voltages for the electric strength test 111Table K.1 – Minimum creepage distances and clearances between parts of oppositepolarity 147Table L.1 – Minimum creepage distances and clearances between parts of oppositepolarity 165