Table of Contents

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 General requirements
      4.1 General considerations
      4.2 Selection of electrical 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, devices for
      disconnecting and switching off, and means for earthing
      5.1 Incoming supply conductor terminations
      5.2 Supply disconnecting (isolating) devices and
             means for earthing
      5.3 Devices for switching off for prevention of
             unexpected start-up
      5.4 Devices for disconnecting and means for earthing
             HV equipment
      5.5 Protection against unauthorized, inadvertent
             and/or mistaken operation
6 Protection against electric shock
      6.1 General
      6.2 Protection against direct contact
      6.3 Protection against indirect contact
7 Protection of HV equipment
      7.1 General
      7.2 Overcurrent protection
      7.3 Earth fault protection
      7.4 Protection against overvoltages due to lightning
             and to switching surges
      7.5 Protection against other abnormal conditions
8 Equipotential bonding
      8.1 General
      8.2 Protective bonding circuit
9 Control circuits and control functions
10 Operator interface and machine-mounted control devices
11 Electronic equipment
12 Controlgear: location, mounting, and enclosures
      12.1 General requirements
      12.2 Location and mounting
      12.3 Degrees of protection
      12.4 Enclosures, doors and openings
      12.5 Access to HV equipment
13 Conductors and cables
      13.1 General requirements
      13.2 Conductors
      13.3 Insulation and sheath materials
      13.4 Current-carrying capacity in normal service
      13.5 Conductor and cable voltage drop
      13.6 Minimum cross-sectional area
      13.7 Flexible cables
      13.8 Conductor wires, conductor bars and slip-ring
             assemblies
14 Wiring practices
      14.1 Connections and routing
      14.2 Identification of conductors
      14.3 Flexible cables
      14.4 Plug/socket combinations
      14.5 Dismantling for shipment
      14.6 Cable trays
15 Electric motors and associated equipment
      15.1 General
      15.2 Motor connection boxes
16 Accessories
      16.1 Accessories for earthing and short-circuiting
             live parts
      16.2 Voltage detectors
      16.3 Accessories for safe working
17 Marking, warning signs and reference designations
      17.1 General
      17.2 Warning signs
18 Technical documentation
19 Testing and verification
      19.1 General
      19.2 Earthing system tests
      19.3 Insulation resistance tests
      19.4 Voltage tests
      19.5 Functional tests
      19.6 IP tests for HV equipment outside electrical
             operating areas
      19.7 Retesting
Annex A (informative) Examples of machines covered by this
                      part of IEC 60204
Annex B (informative) Inquiry form for the HV equipment of
                      machines
Annex C (informative) Method of calculation for the cross-
                      sectional area of bare protective
                      conductors in supply systems with
                      direct earthing or low impedance
                      earthing of the neutral
Annex D (informative) Relationship between cable rated
                      voltages and highest voltage for HV
                      equipment
Annex E (informative) Rationalization of the use of terms
                      relating to earthing and protective
                      bonding
Index
Figure 1 - Block diagram of a machine containing HV equipment
Figure 2 - Example of the equipotential bonding (see 3.15)
           for electrical equipment of a machine
Figure E.1 - Explanation of the terms relating to earthing
             and protective bonding
Table 1 - Cross-sectional area of bare protective conductors
Table 2 - Maximum allowable conductor temperatures under
          normal and short-circuit conditions
Table 3 - Derating factors for cables wound on drums

Abstract

Applicable to electronic and electrical equipment and systems of machines, including a group of machines working together in a coordinated manner, but excluding higher level system aspects such as communication between systems. Applies to equipment, or parts of equipment operating with nominal supply voltages above 1 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV a.c. or d.c. with nominal frequencies not above 200 Hz. Special requirements may be needed for higher frequencies or voltages. This is an application standard and is not intended to inhibit or limit technological advancement. Does not cover all the criteria, i.e. interlocking, guarding or control required by other standards to safeguard personnel from hazards other than electrical.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 44
Superseded By	IEC 60204-11:2018 IEC 60204-11:2018 Redline