HD 491.1 S1:1988

Safety in electroheat installations - Part 1: General requirements

Scope

This standard is applicable to industrial electroheat installations 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 installations such as: Direct arc furnaces - Submerged arc furnaces - Equipment forarc heating (other than arc furnaces) - Electroslag remelting furnaces - Plasma electroheat equipment - Induction melting furnaces - Equipment for induction heating - Equipment for indirect resistance heating - Equipment for infra-red radiation heating - Equipment for dielectric heating (high-frequency) - Equipment with electron guns - Microwave heating equipment - Industrial laser equipment - This standard is not applicable to electric cooking and heating equipment for household of 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 event of abnormal operation and when faults occur in electroheat installations - Inspection, commissioning, utilization and maintenance are dealt with in clause 15 - This standard assumes that the installations are operated and/or maintained by skilled or instructed personnel according to subclauses 3.4.1 and 3.4.2