SAFETY OF MACHINERY - ELECTRICAL EQUIPMENT OF MACHINES - PART 32: REQUIREMENTS FOR HOISTING MACHINES
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
4.1 General considerations
4.2 Selection of equipment
4.3 Electrical supply
4.4 Physical environment and operating conditions
4.5 Transportation and storage
4.6 Provisions for handling
4.7 Installation
5 Incoming supply conductor terminations and devices for
disconnecting and switching off
5.1 Incoming supply conductor terminations
5.2 Terminal for connection to the external protective
earthing system
5.3 Supply disconnecting and switching devices
5.4 Devices for switching off for prevention of unexpected
start-up
5.5 Devices for disconnecting electrical equipment
5.6 Protection against unauthorized, inadvertent and/or
mistaken connection
6 Protection against electric shock
6.1 General
6.2 Protection against direct contact
6.3 Protection against indirect contact
6.4 Protection by the use of PELV
7 Protection of equipment
7.1 General
7.2 Overcurrent protection
7.3 Protection of motors against overheating
7.4 Abnormal temperature protection
7.5 Protection against supply interruption or voltage
reduction and subsequent restoration
7.6 Motor overspeed protection
7.7 Earth fault/residual current protection
7.8 Phase-sequence protection
7.9 Protection against switching surges and lightning
8 Equipotential bonding
8.1 General
8.2 Protective bonding circuit
8.3 Functional bonding
8.4 Measures to limit the effects of high leakage current
9 Control circuits and control functions
9.1 Control circuits
9.2 Control functions
9.3 Protective interlocks
9.4 Control functions in the event of failure
10 Operator interface and hoisting machine mounted control
devices
10.1 General
10.2 Push-buttons
10.3 Indicator lights and displays
10.4 Illuminated push-buttons
10.5 Rotary control devices
10.6 Start devices
10.7 Emergency stop devices
10.8 Emergency switching-off devices
10.9 Enabling control device
11 Controlgear: location, mounting, and enclosures
11.1 General requirements
11.2 Location and mounting
11.3 Degrees of protection
11.4 Enclosures, doors and openings
11.5 Access to switchgear and to controlgear
12 Conductors and cables
12.1 General requirements
12.2 Conductors
12.3 Insulation
12.4 Current-carrying capacity in normal service
12.5 Voltage drop
12.6 Flexible cables
12.7 Conductor wires, conductor bars and slip-ring
assemblies
13 Wiring practices
13.1 Connections and routing
13.2 Identification of conductors
13.3 Wiring inside enclosures
13.4 Wiring outside enclosures
13.5 Ducts, connection boxes and other boxes
14 Electric motors and associated equipment
14.1 General requirements
14.2 Motor enclosures
14.3 Motor dimensions
14.4 Motor mounting and compartments
14.5 Criteria for motor selection
14.6 Protective devices for mechanical brakes
14.7 Electrically operated mechanical brakes
15 Accessories and lighting
15.1 Accessories
15.2 Local lighting on the hoisting machine and for
the equipment
16 Marking, warning signs and reference designations
16.1 General
16.2 Warning signs
16.3 Functional identification
16.4 Marking of equipment
16.5 Reference designations
17 Documentation
17.1 General
17.2 Information to be provided
17.3 Requirements applicable to all documentation
17.4 Installation documents
17.5 Overview diagrams and function diagrams
17.6 Circuit diagrams
17.7 Operating manual
17.8 Maintenance manual
17.9 Parts list
18 Verification
18.1 General
18.2 Verification of conditions for protection by automatic
disconnection of supply
18.3 Insulation resistance tests
18.4 Voltage tests
18.5 Protection against residual voltages
18.6 Functional tests
18.7 Retesting
Annex A (normative) Protection against indirect contact in
TN-systems
Annex B (informative) Inquiry form for the electrical equipment
of hoisting machines
Annex C (informative) Current-carrying capacity and overcurrent
protection of conductors and cables in the
electrical equipment of machines
Annex D (informative) Conductor selection for intermittent duty
Annex E (informative) Explanation of emergency operation functions
Annex F (informative) Comparison of typical conductor
cross-sectional areas
Bibliography
Index
Applies to the application of electrical and electronic equipment and systems to hoisting machines and related equipment.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 44 |
