Table of contents Preface ...................................................................................................................................................... 5 1 Introduction .............................................................................................................................................. 21 2 Scope of this documentation .................................................................................................................... 23 3 Organizations and standards ...................................................................................................................
25 3.1 Organizations .......................................................................................................................... 25 3.2 Standards ................................................................................................................................ 30 3.3 The control panel - does the Machinery Directive or the Low Voltage Directive apply? ........ 37 4 Markings and symbols for market access ................................................................................................ 39 5 Control engineering - definition of terms and fundamental principles .......................................................
45 5.1 Safety rules ............................................................................................................................. 46 5.2 Types of grounding system ..................................................................................................... 47 5.3 Rated... ................................................................................................................................... 49 5.4 Current... .................................................................................................................................
50 5.5 Degree of protection of enclosures ......................................................................................... 52 5.6 Touch protection for electrical equipment ............................................................................... 55 5.7 Degree of pollution .................................................................................................................. 58 5.8 Clearance and creepage distance .......................................................................................... 59 5.9 Overvoltage category ..............................................................................................................
60 5.11 Utilization categories ............................................................................................................... 62 5.10 Selectivity ................................................................................................................................ 61 5.12 Switch disconnectors and circuit breakers ............................................................................. 64 5.13 Selection of the electrical characteristics of circuit breakers .................................................. 66 5.14 Trip classes .............................................................................................................................
67 5.15 Comparison of electrical characteristics ................................................................................. 69 5.16 Insulation ................................................................................................................................. 70 5.17 Classes ................................................................................................................................... 71 5.18 Rated diversity factor ..............................................................................................................
75 5.19 Motor duty types ..................................................................................................................... 76 Control Panels compliant with IEC Standards and European Directives Reference Manual, 10/2017, A5E38284819002A/RS-AB/002 7