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NFPA 70B
NFPA 70B (''Recommended Practice for Electrical Equipment Maintenance'') is a standard of the National Fire Protection Association that addresses recommended electrical equipment maintenance. NFPA 70B is part of NFPA 70. Purpose This recommended practice applies to preventive maintenance for electrical, electronic, and communication systems and equipment and is not intended to duplicate or supersede instructions that manufacturers normally provide. Systems and equipment covered are typical of those installed in industrial plants, institutional and commercial buildings, and large multifamily residential complexes. Related NFPA standards * NFPA 70 — National Electrical Code (NEC) * NFPA 70E NFPA 70E, titled ''Standard for Electrical Safety in the Workplace'', is a standard of the National Fire Protection Association (NFPA). The document covers electrical safety requirements for employees. The NFPA is best known for publishing the Nat ... — Standard for Electrical Saf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Fire Protection Association
The National Fire Protection Association (NFPA) is an international nonprofit organization devoted to eliminating death, injury, property and economic loss due to fire, electrical and related hazards. As of 2018, the NFPA claims to have 50,000 members and 9,000 volunteers working with the organization through its 250 technical committees. History In 1895, a Committee on Automatic Sprinkler Protection was formed in Massachusetts by men affiliated with several fire insurance companies and a pipe manufacturer to develop a uniform standard for the design and installation of fire sprinkler systems. At the time, there were nine such standards in effect within of Boston, Massachusetts, and such diversity was causing great difficulties for plumbers working in the New England region. The next year, the committee published its initial report on a uniform standard, and went on to form the NFPA in late 1896. The committee's initial report evolved into NFPA 13, ''Standard for the Installat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NFPA 70
The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association. Despite the use of the term "national", it is not a federal law. It is typically adopted by states and municipalities in an effort to standardize their enforcement of safe electrical practices. In some cases, the NEC is amended, altered and may even be rejected in lieu of regional regulations as voted on by local governing bodies. The "authority having jurisdiction" inspects for compliance with these standards. The NEC should not be confused with the National Electrical Safety Code (NESC) published by the Institute of Electrical and Electronics Engineers (IEEE). The NESC is used for electric power and communication utility systems including overhead lines, underground lines and powe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NFPA 70E
NFPA 70E, titled ''Standard for Electrical Safety in the Workplace'', is a standard of the National Fire Protection Association (NFPA). The document covers electrical safety requirements for employees. The NFPA is best known for publishing the National Electrical Code (NFPA 70). Purpose NFPA 70E addresses employee workplace electrical safety requirements. The standard focuses on practical safeguards that also allow workers to be productive within their job functions. Specifically, the standard covers the safety requirements for the following: # Electrical conductors and equipment installed within or on buildings or other structures, including mobile homes, recreational vehicles, and other premises (yards, carnivals, parking lots, and industrial substations) # Conductors that connect installations to a supply of electricity Not covered are - electrical installations in marine, aircraft, auto vehicles, communications and electrical utilities. Key principles covered are JSA/JHA/AHA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firefighting In The United States
upright=1.5, ''Streets of New York'' (1869) Firefighting in the United States dates back to the earliest European colonies in the Americas. Early firefighters were simply community members who would respond to neighborhood fires with buckets. The first dedicated volunteer fire brigade was established in 1736 in Philadelphia. These volunteer companies were often paid by insurance companies in return for protecting their clients. As cities grew this method became unreliable, and the first professional fire department was established in Cincinnati in 1853. By the 20th century fire departments were forced to adapt to more modern hazards and dangers, such as high rise and hazardous material fires. They also began to expand their services to include other, non-fire, public safety needs including vehicle rescue and EMS service. As of 2018, 62% of fire departments offered some form of emergency medical response. Firefighters in the United States today are organized along paramilitar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety Codes
S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: ''Safety advice concerning dangerous substances and preparations''. The list was consolidated and republished iDirective 2001/59/EC where translations into other EU languages may be found. The list was subsequently updated and republished iDirective 2006/102/EC where translations to additional European languages were added. These safety phrases are used internationally and not just in Europe, and there is an ongoing effort towards complete international harmonization. ''(Note: missing S-number combinations indicate phrases that were deleted or replaced by another phrase.)'' Safety phrases See also * List of R-phrases * GHS precautionary statements * GHS hazard statements * Material safety data sheet * Risk and Safety Statements {{short description, System of hazard codes and phrases for labeling dangerous chemicals and compounds Risk and Safety Statements, also known as R/S statements, R/S numbers, R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Safety Organizations
Safety is the state of being "safe", the condition of being protected from harm or other danger. Safety can also refer to the control of recognized hazards in order to achieve an acceptable level of risk. Meanings There are two slightly different meanings of ''safety''. For example, ''home safety'' may indicate a building's ability to protect against external harm events (such as weather, home invasion, etc.), or may indicate that its internal installations (such as appliances, stairs, etc.) are safe (not dangerous or harmful) for its inhabitants. Discussions of safety often include mention of related terms. Security is such a term. With time the definitions between these two have often become interchanged, equated, and frequently appear juxtaposed in the same sentence. Readers unfortunately are left to conclude whether they comprise a redundancy. This confuses the uniqueness that should be reserved for each by itself. When seen as unique, as we intend here, each term will a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Standards
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others. The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field. When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of positiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
