Safety

Installed electrical equipment that has not been previously certified, listed, recognized, or classified undergo a “field evaluation” to ensure compliance. The standard provides qualifications and competencies for third parties performing field evaluations and specifies how they are to be completed.

The document outlines fire safety recommendations for gas, oil, coal, and alternative fuel electric generating plants, including high voltage DC converter stations and combustion turbine units used for electric generation. Fire prevention and fire protection recommendations advance the safety of construction and operating personnel, physical integrity of plant components, and the continuity of plant operations.

The document provides fire prevention and fire protection recommendations for hydroelectric generating plants to safeguard personnel, protect physical property, ensure continuity of power production, and control the impact of fire and firefighting activities on the environment. NFPA 851 offers guidance for the design, construction, and operation of hydroelectric facilities. In addition, general plant design, fire protection systems, identification and protection of hazards, and development of a fire risk control program are also covered.

The standard provides fire prevention and protection requirements for safeguarding life and physical property for buildings or facilities that employ stationary fuel cell systems of all sizes. Criteria cover design, construction and installation requirements, including general equipment configuration, siting and interconnections, fuel supplies and storage arrangements, ventilation, exhaust and fire protection. Specific provisions for fuel cell power systems 50 kW or less are also included.

"The standard applies to the classification of degrees of protection provided by enclosures for electrical equipment with a rated voltage not exceeding 72,5 kV. The object of the standard is to give a) Definitions for degrees of protection provided by enclosures of electrical equipment as regards: 1) protection of persons against access to hazardous parts inside the enclosure; 2) protection of the equipment inside the enclosure against ingress of solid foreign objects; 3) protection of the equipment inside the enclosure against harmful effects due to the ingress of water.

This Part of IEC 62485 specifies the basic requirements for secondary batteries and battery installations. The requirements regarding safety, reliability, life expectancy, mechanical strength, cycle stability, internal resistance, and battery temperature, are determined by various applications, and this, in turn, determines the selection of the battery design and technology. In general, the requirements and definitions are specified for Lead-Acid and Nickel Cadmium batteries. For other battery systems with aqueous electrolyte, the requirements may be applied accordingly.

This part of IEC 62485 applies to secondary batteries and battery installations used for electric vehicles (e.g., in electric industrial trucks, including lift trucks, tow trucks, cleaning machines, automatic guided vehicles), battery powered locomotives, electric vehicles (e.g., goods vehicles, golf carts, bicycles, wheelchairs) and does not cover the design of such vehicles. The standard covers Lead dioxide-Lead (Lead-Acid), nickel oxide-cadmium, nickel-oxide-metal hydride and other alkaline secondary batteries.

The document outlines the fundamental conditions necessary for the creation of each hazard. It includes identification and characterization of the possible hazards inherent in the application, use, and abuse of Nickel Cadmium cells and batteries. It also includes examples for appliance design which minimizes these hazards. Additionally it presents some typical but non-exhaustive examples of misuse that may precipitate or actions which mitigate the hazard.

The document is intended to assist code authorities, designers, and installers to develop, and install a complete lightning protection system that can withstand the tremendous power of a lightning strike. Depending on the type, a strike can exceed 300,000 Amperes, over one gigavolt (one billion volts) and with temperatures as high as 36,000 Deg. F., or about three times as hot as the surface of the sun. This guide does not include information on protection of equipment inside a building.