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Unlike ATEX which uses numbers to define the safety "Category" of equipment (namely 1, 2, and 3), the IEC continued to utilise the method used for defining the safe levels of intrinsic safety namely "a" for zone 0, "b" for zone 1 and "c" for zone 2 and apply this Equipment Level of Protection to all equipment for use in hazardous areas since ...
A lineman wearing equipment for hot glove work. In electrical engineering, live-line working, also known as hotline maintenance, is the maintenance of electrical equipment, often operating at high voltage, while the equipment is energised.
IEC 60204-1 / EN 60204 Safety of machinery – Electrical equipment of machines – Part 1: General requirements This is a standard published by the International Electrotechnical Commission (IEC), published in parallel by CENELEC ( European Committee for Electrotechnical Standardization ).
A minimum overhead clearance must be maintained for safety. Since the temperature and therefore length of the conductor increase with increasing current through it, it is sometimes possible to increase the power handling capacity (uprate) by changing the conductors for a type with a lower coefficient of thermal expansion or a higher allowable ...
This step-by-step guide explains how to apply and meet the NESC rules for electrical supply stations and equipment, as well as overhead and underground electric supply and communications lines. The 2023 NESC Course Program is a series of online courses that take an in-depth look at the rules, regulations, and changes made in the 2023 NESC ...
IEC TR 60930 Guidelines for administrative, medical and nursing staff concerned with the safe use of medical electrical equipment and medical electrical systems IEC 60931 Shunt power capacitors of the non-self-healing type for a.c. systems having a rated voltage up to and including 1000 V