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This document specifies the physical and mechanical properties of fittings made from unplasticized polyamide (PA-U) in accordance with ISO 16486-1, intended to be buried and used for the supply of gaseous fuels. It also specifies the test parameters for the test methods to which it refers. The ISO 16486 series is applicable to PA-U piping systems, the components of which are connected by fusion…

1 Scope Replacement This part of IEC 61558 deals with the safety of separating transformers for general applications and power supply units incorporating separating transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here…

1 Scope 1.1 Service fluids This Standard applies to liquid and gaseous energy systems that convey a) liquid hydrocarbons, including crude oil, multiphase fluids, condensate, and liquid petroleum products; b) natural gas liquids and liquefied petroleum gas; c) oilfield water; d) oilfield steam; e) liquid or dense phase carbon dioxide; or f) gas, including but not limited to natural…

1 Scope 1.1 The requirements of this Standard apply to manually operated, general-use snap switches and modular switch assembly for connection to copper (Cu) or copper-clad conductors used in accordance with the National Electrical Code (NEC), NFPA 70, the Canadian Electrical Code (CE Code), Part I, or NOM-001-SEDE and intended to be permanently connected in accordance with the NOM-001-SEDE…

1 Scope 1.1 This Standard applies to encapsulated isolating transformers for use as a circuit continuity device, intended to be installed in airport field lighting series circuits for use in nonhazardous locations in accordance with the Canadian Electrical Code, Part I. 1.2 This Standard applies to transformers that consist of electrically separated primary and secondary coils that are wound…

IEC 60617:2012 DB contains graphical symbols for use in electrotechnical diagrams. Parts 2 to 13 of IEC 60617 have been incorporated into a database that currently includes some 1900 symbols. The database is the official source of IEC 60617. It replaces parts 2 to 13 of the previous published version (edition 2) of IEC 60617. The following areas are covered in the database: Conductors and…

IEC 60417:2002 DB contains graphical symbols used to identify equipment or a part of equipment, indicate functional states, designate connections, provide information on packaging or provide instruction for the operation of the equipment. A graphical symbol is a visually perceptible figure used to transmit information independently of language. Each graphical symbol is identified by a reference…

Contains graphical symbols used to identify equipment or a part of equipment, indicate functional states, designate connections, provide information on packaging or provide instruction for the operation of the equipment. A graphical symbol is a visually perceptible figure used to transmit information independently of language. Each graphical symbol is identified by a reference number and contains…

1 Scope 1.1 Inclusions This Standard defines minimum energy efficiency and performance requirements for LED devices that have the general appearance, length, and base types of a conventional fluorescent lamp. These devices have the physical dimensions of a lamp as described in ANSI C78.81 or ANSI C78.901 are commonly known as LED tubular (TLED) lamps. The following TLED lamp constructions,…