prEN IEC 60204-32:2021
(Main)Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines
Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines
This part of IEC 60204 applies to electrical, electronic, programmable electronic equipment and systems to hoisting machines and related equipment, including a group of hoisting machines working together in a co-ordinated manner NOTE 1 In this part of IEC 60204, the term "electrical" includes both electrical and electronic matters (i.e. "electrical equipment" means both the electrical, electronic and programmable electronic equipment). NOTE 2 In the context of this part of IEC 60204, the term “person” refers to any individual and includes those persons who are assigned and instructed by the user or user’s agent(s) in the use and care of the hoisting machine in question. The equipment covered by this part of IEC 60204 commences at the point of connection of the supply to the electrical equipment of the hoisting machine (crane-supply-switch) and includes systems for power supply and control feeders situated outside of the hoisting machine, for example, flexible cables or conductor wires or conductor bars (see Figure 3). NOTE 3 The requirements for the electrical supply installation of electrical equipment of a hoisting machine are given in IEC 60364. This standard is applicable to equipment or parts of equipment not exceeding 1 000 V AC or 1 500 V DC between lines and with nominal frequencies not exceeding 200 Hz. NOTE 4 Special requirements for electrical equipment of hoisting machines intended to be operated at higher voltages, see IEC 60204-11 (Annex D) This part of IEC60204 does not cover all the requirements (for example guarding, interlocking, or control) that are needed or required by other standards or regulations in order to protect persons from hazards other than electrical hazards. Each type of hoisting machine has unique requirements to be accommodated to provide adequate safety. This part of 60204 doesn´t cover noise risks and vibration risks. Additional and special requirements can apply to the electrical equipment of hoisting machines including those that - handle or transport potentially explosive material (e.g. paint or sawdust); - are intended for use in potentially explosive and/or flammable atmospheres; - have special risks when transporting or moving certain materials - are intended for use in mines. For the purposes of this standard, hoisting machines include cranes of all types, winches of all types and storage and retrieval machines. The following product groups are included: - overhead travelling cranes; - mobile cranes; - tower cranes; - slewing luffing cranes; - gantry cranes; - offshore cranes; - floating cranes; - winches of all types; - hoists and accessories; - loader cranes; - cable cranes; - load holding devices; - storage and retrieval machines; - monorail hoists; - straddle carriers; - rubber tyred gantry cranes (RTGs). NOTE 5 Definition of the different crane types see ISO 4306-1 This standard does not cover individual items of electrical equipment other than their selection for use and their erection.
Sicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 32: Anforderungen für Hebezeuge
Sécurité des machines - Équipement électrique des machines - Partie 32: Exigences pour les appareils de levage
Varnost strojev - Električna oprema strojev - 32. del: Posebne zahteve za dvigovalne stroje
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60204-32:2021
01-julij-2021
Varnost strojev - Električna oprema strojev - 32. del: Posebne zahteve za
dvigovalne stroje
Safety of machinery - Electrical equipment of machines - Part 32: Requirements for
hoisting machinesSicherheit von Maschinen - Elektrische Ausrüstung von Maschinen - Teil 32:
Anforderungen für Hebezeuge
Sécurité des machines - Équipement électrique des machines - Partie 32: Exigences
pour les appareils de levageTa slovenski standard je istoveten z: prEN IEC 60204-32:2021
ICS:
13.110 Varnost strojev Safety of machinery
53.020.01 Dvigalne naprave na splošno Lifting appliances in general
oSIST prEN IEC 60204-32:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 60204-32:2021
44/896/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60204-32 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-05-07 2021-07-30
SUPERSEDES DOCUMENTS:
44/862/CD, 44/872/CC
IEC TC 44 : SAFETY OF MACHINERY - ELECTROTECHNICAL ASPECTS
SECRETARIAT: SECRETARY:
United Kingdom Mrs Nyomee Hla-Shwe Tun
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel votingThe attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.TITLE:
Safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting
machinesPROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
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oSIST prEN IEC 60204-32:2021
IEC 60204-32 CDV ED 3 © IEC 2021 -2- - 44/896/CDV
1 CONTENTS3 FOREWORD ............................................................................................................................................7
4 INTRODUCTION ................................................................................................................................... 10
5 1 Scope ............................................................................................................................................. 13
6 2 Normative references ..................................................................................................................... 14
7 3 Terms and definitions ..................................................................................................................... 16
8 4 General requirements ..................................................................................................................... 24
9 4.1 General considerations ........................................................................................................ 24
10 4.2 Selection of equipment ........................................................................................................ 25
11 4.3 Electrical supply ................................................................................................................... 26
12 4.4 Physical environment and operating conditions .................................................................. 27
13 4.5 Transportation and storage .................................................................................................. 28
14 4.6 Provisions for handling ......................................................................................................... 28
15 4.7 Installation ............................................................................................................................ 28
16 5 Incoming supply conductor terminations and devices for disconnecting and switching off ........... 29
17 5.1 Incoming supply conductor terminations ............................................................................. 29
18 5.2 Terminal for connection to the external protective earthing system .................................... 29
19 5.3 Supply disconnecting and switching devices ....................................................................... 30
20 5.4 Devices for removal of power for prevention of unexpected start-up .................................. 35
21 5.5 Devices for isolating electrical equipment ............................................................................ 36
22 5.6 Protection against unauthorized, inadvertent and/or mistaken connection ......................... 37
23 6 Protection against electric shock .................................................................................................... 37
24 6.1 General ................................................................................................................................ 37
25 6.2 Basic protection .................................................................................................................... 37
26 6.3 Fault protection .................................................................................................................... 39
27 6.4 Protection by the use of PELV ............................................................................................. 41
28 7 Protection of equipment ................................................................................................................. 41
29 7.1 General ................................................................................................................................ 41
30 7.2 Overcurrent protection ......................................................................................................... 42
31 7.3 Protection of motors against overheating ............................................................................ 44
32 7.4 Protection against abnormal temperature ............................................................................ 45
33 7.5 Protection against the effects of supply interruption or voltage reduction and
34 subsequent restoration ........................................................................................................ 45
35 7.6 Motor overspeed protection ................................................................................................. 45
36 7.7 Additional earth fault/residual current protection ................................................................. 45
37 7.8 Phase sequence protection ................................................................................................. 46
38 7.9 Protection against overvoltages due to lightning and to switching surges .......................... 46
39 7.10 Short-circuit current rating .................................................................................................... 46
40 8 Equipotential bonding ..................................................................................................................... 46
41 8.1 General ................................................................................................................................ 46
42 8.2 Protective bonding circuit ..................................................................................................... 49
43 8.3 Functional bonding ............................................................................................................... 52
44 8.4 Measures to restrict the effects of high leakage current ...................................................... 52
45 9 Control circuits and control functions ............................................................................................. 52
46 9.1 Control circuits ..................................................................................................................... 52
47 9.2 Control functions .................................................................................................................. 53
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48 9.3 Protective interlocks ............................................................................................................. 57
49 9.4 Control functions in the event of failure................................................................................ 58
50 10 Operator interface and hoisting machine mounted control devices ............................................... 66
51 10.1 General ................................................................................................................................ 66
52 10.2 Actuators .............................................................................................................................. 67
53 10.3 Indicator lights, displays and audible devices ...................................................................... 68
54 10.4 Illuminated push-buttons ...................................................................................................... 69
55 10.5 Rotary control devices.......................................................................................................... 69
56 10.6 Start devices ........................................................................................................................ 69
57 10.7 Emergency stop devices ...................................................................................................... 69
58 10.8 Emergency switching off devices ......................................................................................... 70
59 10.9 Enabling control device ........................................................................................................ 71
60 11 Controlgear: location, mounting, and enclosures ........................................................................... 71
61 11.1 General requirements .......................................................................................................... 71
62 11.2 Location and mounting ......................................................................................................... 71
63 11.3 Degrees of protection ........................................................................................................... 73
64 11.4 Enclosures, doors and openings .......................................................................................... 73
65 11.5 Access to switchgear and to controlgear ............................................................................. 74
66 12 Conductors and cables ................................................................................................................... 75
67 12.1 General requirements .......................................................................................................... 75
68 12.2 Conductors ........................................................................................................................... 75
69 12.3 Insulation .............................................................................................................................. 76
70 12.4 Current-carrying capacity in normal service ........................................................................ 76
71 12.5 Conductor and cable voltage drop ....................................................................................... 77
72 12.6 Flexible cables ..................................................................................................................... 78
73 12.7 Conductor wires, conductor bars and slip-ring assemblies ................................................. 79
74 13 Wiring practices .............................................................................................................................. 82
75 13.1 Connections and routing ...................................................................................................... 82
76 13.2 Identification of conductors .................................................................................................. 84
77 13.3 Wiring inside enclosures ...................................................................................................... 85
78 13.4 Wiring outside enclosures .................................................................................................... 86
79 13.5 Ducts, connection boxes and other boxes ........................................................................... 88
80 14 Electric motors and associated equipment .................................................................................... 90
81 14.1 General requirements .......................................................................................................... 90
82 14.2 Motor enclosures .................................................................................................................. 90
83 14.3 Motor dimensions ................................................................................................................. 90
84 14.4 Motor mounting and compartments ..................................................................................... 90
85 14.5 Criteria for motor selection ................................................................................................... 91
86 14.6 Protective devices for mechanical brakes............................................................................ 91
87 14.7 Electrically operated mechanical brakes.............................................................................. 91
88 15 Socket-outlets and lighting ............................................................................................................. 91
89 15.1 Socket-outlets for accessories ............................................................................................. 91
90 15.2 Local lighting of the hoisting machine and of the equipment ............................................... 92
91 16 Marking, warning signs and reference designations ...................................................................... 93
92 16.1 General ................................................................................................................................ 93
93 16.2 Warning signs ...................................................................................................................... 93
94 16.3 Functional identification ....................................................................................................... 94
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95 16.4 Marking of enclosures of electrical equipment ..................................................................... 94
96 16.5 Reference designations ....................................................................................................... 94
97 17 Technical documentation ............................................................................................................... 95
98 17.1 General requirements .......................................................................................................... 95
99 17.2 Information related to the electrical equipment .................................................................... 95
100 18 Verification ...................................................................................................................................... 96
101 18.1 General requirements .......................................................................................................... 96
102 18.2 Verification of conditions for protection by automatic disconnection of supply .................... 97
103 18.3 Insulation resistance tests .................................................................................................. 100
104 18.4 Voltage tests ...................................................................................................................... 101
105 18.5 Protection against residual voltages .................................................................................. 101
106 18.6 Functional tests .................................................................................................................. 101
107 18.7 Retesting ............................................................................................................................ 101
108 Annex A (normative) Fault protection by automatic disconnection of supply ..................................... 102
109 A.1 Fault protection for machines supplied from TN-systems.................................................. 102
110 A.2 Fault protection for machines supplied from TT-systems .................................................. 105
111 (informative) Inquiry form for the electrical equipment of hoisting machines ...................... 109
112 (informative) Current-carrying capacity and overcurrent protection of conductors and
113 cables in the electrical equipment of machines............................................................................ 112
114 C.1 General operating conditions ............................................................................................. 112
115 C.2 Co-ordination between conductors and protective devices providing overload
116 protection ........................................................................................................................... 114
117 C.3 Overcurrent protection of conductors................................................................................. 116
118 (informative) Conductor selection for intermittent duty ........................................................ 117
119 D.1 General .............................................................................................................................. 117
120 D.2 Intermittent duty with 10-min cycle ..................................................................................... 117
121 D.3 Intermittent duty with any cycle time .................................................................................. 118
122 D.4 Calculation of thermal equivalent current .......................................................................... 119
123 (informative) Explanation of emergency operation functions .............................................. 121
124 (informative) Comparison of typical conductor cross-sectional areas ................................. 122
125 (informative) Measures to reduce the effects of electromagnetic influences ...................... 124
126 G.1 Definitions .......................................................................................................................... 124
127 G.2 General .............................................................................................................................. 124
128 G.3 Mitigation of electromagnetic interference (EMI) ............................................................... 125
129 G.4 Separation and segregation of cables ............................................................................... 126
130 G.5 Power supply of a machine by parallel sources ................................................................. 129
131 G.6 Supply impedance where a Power Drive System (PDS) is used ...................................... 129
132 G.7 Emission levels for electrical equipment for PDS .............................................................. 130
133 G.8 Conducted disturbances .................................................................................................... 131
134 G.9 Immunity requirements - Enclosure ports .......................................................................... 131
135 Annex H (informative) Documentation / Information .......................................................................... 133
136 Bibliography ......................................................................................................................................... 135
137 Index .................................................................................................................................................... 137
138139
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140 Figure 1 – Block diagram of combined working cranes in a typical material handling system in
141 a seaport ......................................................................................................................................... 11
142 Figure 2 – Block diagram of a typical crane and its associated electrical equipment ........................... 12
143 Figure 3 – Examples of electrical supply systems................................................................................. 31
144 Figure 4 – Disconnector isolator ............................................................................................................ 33
145 Figure 5 – Disconnecting circuit breaker ............................................................................................... 33
146 Figure 6 – Example of equipotential bonding for electrical equipment of a hoisting machine ............. 48
147 Figure 7 – Symbol IEC 60417-5019: Protective earth ........................................................................... 51
148 Figure 8 – Symbol IEC 60417-5020: Frame or chassis ........................................................................ 52
149 Figure 9 – Method a) earthed control circuit fed by a transformer ........................................................ 60
150 Figure 10 – Method b1) Non-earthed control circuit fed by transformer ............................................... 61
151 Figure 11 – Method b2) Non-earthed control circuit fed by transformer ............................................... 62
152 Figure 12 – Method b3) Non-earthed control circuit fed by transformer ............................................... 62
153 Figure 13 – Method c) Control circuits fed by transformer with an earthed centre-tap winding ............ 63
154 Figure 14 – Method d1a) Control circuit without transformer connected between a phase and
155 the neutral of an earthed supply system ........................................................................................ 64
156 Figure 15 – Method d1b) control circuit without transformer connected between two phases of
157 an earthed supply system .............................................................................................................. 64
158 Figure 16 – Method d2a) Control circuit without transformer connected between phase and
159 neutral of a non-earthed supply system ......................................................................................... 65
160 Figure 17 – Method d2b) control circuit without transformer connected between two phases of
161 a non-earthed supply system ......................................................................................................... 65
162 Figure 18 – Limit of arm’s reach in cases where the distance from the middle of the hoisting
163 device-rail to the edge of the girder is less than 300 mm .............................................................. 80
164 Figure 19 – Limit of arm’s reach in cases where the distance from the middle of the hoisting
165 device-rail to the edge of the girder is at least 300 mm ................................................................. 80
166 Figure 20 – Limit of arm’s reach in cases of using additional obstacles ............................................... 81
167 Figure 21– Symbol IEC 60417-5019 ..................................................................................................... 84
168 Figure 22 – Symbol IEC 60417-5021 .................................................................................................... 85
169 Figure 23 – Symbol ISO 7010-W012 .................................................................................................... 93
170 Figure 24 – Symbol ISO 7010-W017 .................................................................................................... 93
171 Figure 25 – Warning Sign: Energy Storage System ............................................................................. 94
172 Figure A.1 – Typical arrangement for fault loop impedance (Z ) measurement in TN systems ........ 104
173 Figure A.2 – Typical arrangement for fault loop impedance (Z ) measurement for power drive
174 system circuits in TN systems ...................................................................................................... 105
175 Figure A.3 – Typical arrangement for fault loop impedance (Z ) measurement in TT systems ........ 108
176 Figure A.4 – Typical arrangement for fault loop impedance (Z ) measurement for Power Drive
177 System circuits in TT systems ...................................................................................................... 108
178 Figure C.1 – Methods of conductor and cable installation independent of number of
179 conductors/cables ........................................................................................................................ 113
180 Figure C.2 – Parameters of conductors and protective devices ......................................................... 115
181 Figure D.1 – An example of current and time of the segments of the operating cycle of a
182 variable speed AC hoist drive....................................................................................................... 119
183 Figure G.1 – By-pass conductor for screen reinforcement ................................................................. 126
184 Figure G.2 – Examples of vertical separation and segregation .......................................................... 127
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185 Figure G.3 – Examples of horizontal separation and segregation ...................................................... 128
186 Figure G.4 – Cable arrangements in metal cable trays ....................................................................... 128
187 Figure G.5 – Connections between metal cable trays or cable trunking systems .............................. 129
188 Figure G.6 – Interruption of metal cable trays at fire barriers.............................................................. 129
189190 Table 1 - Minimum cross-sectional area of the external protective copper conductor .......................... 29
191 Table 2 – Symbols for actuators (Power) .............................................................................................. 68
192 Table 3 – Symbols for actuators (Machine operation) .......................................................................... 68
193 Table 4 – Colours for indicator lights and their meanings with respect to the condition of the
194 hoisting machine ............................................................................................................................ 69
195 Table 5 – Minimum cross-sectional areas of copper conductors .......................................................... 75
196 Table 6 – Classification of conductors ................................................................................................... 76
197 Table 7 – Examples of current-carrying capacity (I ) of PVC-insulated copper conductors or
198 cables under steady-state conditions in an ambient air temperature of +40 °C for different
199 methods of installation .................................................................................................................... 77
200 Table 8 – Derating factors for cables wound on drums ......................................................................... 79
201 Table 9 – Minimum permitted bending radii for the forced guiding of flexible cables ........................... 87
202 Table 10 – Application of the test methods for TN-systems .................................................................. 99
203 Table 11 – Examples of maximum cable length from each protective device to its load .........
...
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