【正文】 – are intended for use in potentially explosive and/or flammable 。 – ease of maintenance. More guidance on the use of this part of IEC 60204 is given in Annex F. Figure 1 has been provided as an aid to the understanding of the interrelationship of the various elements of a machine and its associated equipment. Figure 1 is a block diagram of a typical machine and associated equipment showing the various elements of the electrical equipment addressed in this part of IEC 60204. Numbers in parentheses ( ) refer to Clauses and Subclauses in this part of IEC 60204. It is understood in Figure 1 that all of the elements taken together including the safeguards, tooling/fixturing, software, and the documentation, constitute the machine, and that one or more machines working together with usually at least one level of supervisory control constitute a manufacturing cell or system. EN 602041:2020 – 8 – Physical environment () Warning signs, item designation (Clause 16) Technical documentation (Clause 17) System/cell controller Power supply () PE (External protective conductor connection) Conductors and cables (Clause 12) Wiring practices (Clause 13) Motor Supply disconnecting device () Protection against electrical shock (Clause 6) Protection of equipment (Clause 7) Earth (PE) terminal () Protective bonding circuit () Control circuits and control functions (Clause 9) Emergency stop function () Controlgear (Clause 11) Accessories and lighting (Clause 15) Programmable Data link Emergency stop device () Operator control Testing (Clause 18) control equipment controller station (Clause 10) Input/output interface Safeguards and warning devices Motors (Clause 14) and transducers Actuators and sensors Processing equipment IEC 1388/05 Figure 1 – Block diagram of a typical machine – 9 – EN 602041:2020 SAFETY OF MACHINERY – ELECTRICAL EQUIPMENT OF MACHINES – Part 1: General requirements 1 Scope This part of IEC 60204 applies to the application of electrical, electronic and programmable electronic equipment and systems to machines not portable by hand while working, including a group of machines working together in a coordinated manner. NOTE 1 This part of IEC 60204 is an application standard and is not intended to limit or inhibit technological advancement. NOTE 2 In this part of IEC 60204, the term electrical includes electrical, electronic and programmable electronic matters (. electrical equipment means electrical, electronic and programmable electronic equipment). NOTE 3 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 his agent(s) in the use and care of the machine in question. The equipment covered by this part of IEC 60204 mences at the point of connection of the supply to the electrical equipment of the machine (see ). NOTE 4 The requirements for the electrical supply installation in buildings are given i n the IEC 60364 series. This part of IEC 60204 is applicable to the electrical equipment or parts of the electrical equipment that operate with nominal supply voltages not exceeding 1 000 V for alternating current (.) and not exceeding 1 500 V for direct current (.), and with nominal supply frequencies not exceeding 200 Hz. NOTE 5 For higher voltages, see IEC 6020411. This part of IEC 60204 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 machine has unique requirements to be acmodated to provide adequate safety. This part specifically includes, but is not limited to, the electrical equipment of machines as defined in . NOTE 6 Annex C lists examples of machines whose electrical equipment can be covered by this part of IEC 60204. ?This part of EN 60204 does not specify additional and special requirements that can apply to the electrical equipment of machines including those that – are intended for use in open air (. outside buildings or other protective structures)。C for different methods of installation .......................................................................... 68 Table 7 – Derating factors for cables wound on drums ........................................................ 70 Table 8 – Minimum permitted bending radii for the forced guiding of flexible cables ............. 77 Table 9 – Application of the test methods for TNsystems.................................................... 91 Table 10 – Examples of maximum cable length from each protective device to its load ........ 92 Table – Maximum disconnecting times for TN systems ................................................. . 94 Table – Correction factors .......................................................................................... 104 Table – Derating factors from Iz for grouping .............................................................. 106 Table – Derating factors from Iz for multicore cables up to 10 mm2 ............................. 106 Table – Classification of conductors ........................................................................... 107 Table – Maximum allowable conductor temperatures under normal and short circuit conditions............