IEC 60519-1-2003 pdf – Safety in electroheat installations – Part 1: General requirements.
1 General 1.1 Scope This part of IEC 60519 is applicable to industrial electroheat installations, which may comprise electroheat equipment in the voltage range up to 3 600 V a.c. or 5 000 V d.c., and deals with the general safety requirements. Where requirements given in this standard differ from those given in other IEC publications, an equivalent degree of safety shall be ensured. The present requirements apply to industrial electroheat and associated treatment installations such as: – direct arc furnaces; – submerged arc furnaces; – equipment for arc heating (other than arc furnaces); – electroslag remelting furnaces; – plasma equipment; – induction melting furnaces; – equipment for induction heating; – equipment for direct resistance heating; – equipment for indirect resistance heating; – equipment for infra-red radiation heating; – equipment for dielectric heating; – equipment with electron guns; – microwave heating equipment; – industrial laser equipment; – electroheat surface treatment equipment. NOTE The list is intended to present some typical examples of installations covered by this standard. It is not exhaustive. This standard is not applicable to electric cooking and heating equipment for household or welding purposes, nor does it apply to space heating of any kind. This standard refers to the normal operation of industrial electroheat installations; it is also intended to ensure the safety of persons in the case of abnormal operation and when faults occur in electroheat installations. Inspection, commissioning, utilization and maintenance are dealt with in Clause 16. This standard assumes that the installations are operated and maintained by skilled or instructed persons according to 3.1.8 and 3.1.9.
1.2 Object The requirements for the safety of persons in electroheat installations are the subject, on the one hand, of general requirements applicable to electroheat installations as a whole and, on the other hand, of particular requirements applicable to each of them. This standard gives only general requirements. These safety requirements concern the protection of persons against dangers of particularly electrical origin and also against certain dangers of non-electrical origin. The safety requirements to be observed result from the joint application of general requirements and particular requirements concerning the specific industrial application of the electroheat. Where particular requirements exist they shall complete, modify or replace the general requirements. In the absence of particular requirements, the requirements to be complied with are those, which are specified in this standard. In addition, for electroheat installations of voltage bands 1 and 2 and frequencies of up to 60 Hz, the following parts of IEC 60364 shall apply: IEC 60364-1, IEC 60364-4-41, IEC 60364-4-42, IEC 60364-4-43, IEC 60364-5-53, IEC 60364-5-54. For voltage band 3, electroheat equipment with rated voltage not exceeding 3 600 V a.c. or 5 000 V d.c., special requirements shall be complied with. Such requirements are specified in this standard. For rated voltage exceeding 3 600 V a.c. or 5 000 V d.c., additional specifications are under consideration. In addition, for electrical equipment of up to 1 000 V a.c. or 1 500 V d.c. and frequencies of up to 200 Hz, IEC 60204-1 may be taken as a guidance. IEC 60204-1 however does not cover power circuits. 2 Normative references The following referenced documents are indispensable for the application of this document.
IEC 60204-1:1997, Safety of machinery – Electrical equipment of machines – Part 1: General requirements 2 IEC 60364-1, Electrical installations of buildings – Part 1: Fundamental principles, assessment of general characteristics, definitions IEC 60364-4-41, Electrical installations of buildings – Part 4-41: Protection for safety – Protection against electric shock IEC 60364-4-42, Electrical installations of buildings – Part 4-42: Protection for safety – Protection against thermal effects IEC 60364-4-43, Electrical installations of buildings – Part 4-43: Protection for safety – Protection against overcurrent IEC 60364-5-53, Electrical installations of buildings – Part 5-53: Selection and erection of electrical equipment – Isolation, switching and control IEC 60364-5-54, Electrical installations of buildings – Part 5-54: Selection and erection of electrical equipment – Earthing arrangements, protective conductors and protective bonding conductors IEC 60417-DB 3 , Graphical symbols for use on equipment IEC 60446, Basic and safety principles for man-machine interface, marking and identification – Identification of conductors by colours or numerals IEC 60529, Degrees of protection provided by enclosures (IP Code) IEC 60664-1, Insulation coordination for equipment within low-voltage systems – Part 1: Principles, requirements and tests 4 CISPR 11, Industrial, scientific and medical (ISM) radio-frequency equipment – Electro- magnetic disturbance characteristics – Limits and methods of measurement ISO 7000, Graphical symbols for use on equipment – Index and synopsis 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-841 and the following apply.