ASTM B226-11(2021)

Standard Specification for Cored, Annular, Concentric-Lay-Stranded Copper Conductors

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STANDARD published on 1.10.2021

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The information about the standard:

Designation standards: ASTM B226-11(2021)
Publication date standards: 1.10.2021
SKU: NS-1039162
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Cables

Annotation of standard text ASTM B226-11(2021) :

This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires either uncoated or coated with tin for use as electrical conductors. The core may be of any materials and its size and surface firmness as a base for the overlaid wires shall be adequated to prevent forcing or dropping of any wire out of its layer position. No splice shall be made in the conductor as a whole, welds or brazes may be made in the finished individual wires. The materials shall conform to the required nominal conductor size, number of layers of wires, number, diameter, lay-up wires, approximate core diameter, and maximum conductor diameter. The mass per unit length and electrical resistance of a unit length of stranded conductor are a function of the length of lay and shall be calculated. The are of cross section of a conductor shall be considered to be the sum of the cross-sectional areas of its component wires at any section when measured perpendicularly to their individual axes.

Keywords:
annular, concentric-lay-stranded, concentric-lay stranded copper conductor, copper electrical conductor, cored, electrical conductor, electrical conductor–copper, stranded copper conductor,, ICS Number Code 29.060.20 (Cables)

Additional information

1. Scope

1.1?This specification covers cored, annular, concentric-lay-stranded conductors made from round soft copper wires, either uncoated or coated with tin for use as electrical conductors (Explanatory Note 1 and Note 2).

1.2?The constructions prescribed herein are suitable for bare conductors, or for conductors to be covered with weather-resistant (weather-proof) material, or for conductors to be insulated with rubber, varnished cloth, or impregnated paper, except types such as oil-filled or gas-filled (Explanatory Note 3).

1.3?Cored, annular conductor constructions not included in this specification shall be specifically agreed upon between the manufacturer and the purchaser when placing the order.

1.4?These constructions are not recommended for use as electric furnace leads where great flexibility is required and special conductor designs are indicated in consideration of the particular service requirements.

1.5?The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.

1.6?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

B496-16(2021)	Standard Specification for Compact Round Concentric-Lay-Stranded Copper Conductors
B174-17	Standard Specification for Bunch-Stranded Copper Conductors for Electrical Conductors
B787/B787M-04(2020)	Standard Specification for 19 Wire Combination Unilay-Stranded Copper Conductors for Subsequent Insulation
B835-14(2020)	Standard Specification for Compact Round Stranded Copper Conductors Using Single Input Wire Construction
B902-13	Standard Specification for Compressed Round Stranded Copper Conductors, Hard, Medium-Hard, or Soft Using Single Input Wire Construction
IEEE Standard 100	The Authoritative Dictionary of IEEE Standards Terms Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
	NBS Handbook 100Copper Wire Tables Available from National Technical Information Service (NTIS), 5301 Shawnee Rd., Alexandria, VA 22312, http://www.ntis.gov.
B263-04	Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors
B354-23	Standard Terminology Relating to Uninsulated Metallic Electrical Conductors
B173-17	Standard Specification for Rope-Lay-Stranded Copper Conductors Having Concentric-Stranded Members, for Electrical Conductors
B3-13(2018)	Standard Specification for Soft or Annealed Copper Wire
B8-23	Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
B33-10(2020)e1	Standard Specification for Tin-Coated Soft or Annealed Copper Wire for Electrical Purposes (Includes all amendments and changes 1/20/2020).
B172-17	Standard Specification for Rope-Lay-Stranded Copper Conductors Having Bunch-Stranded Members, for Electrical Conductors
B784-01(2017)e1	Standard Specification for Modified Concentric-Lay-Stranded Copper Conductors for Use in Insulated Electrical Cables (Includes all amendments and changes 4/25/2017).

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