ASTM B226-11(2021)

ASTM B226-11(2021) - 1.10.2021

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).