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ASTM B786/B786M-08(2018)
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ASTM B786/B786M-08(2018)
Standard Specification for 19 Wire Combination Unilay-Stranded Aluminum Conductors for Subsequent InsulationMore info
1.1 This specification covers bare combination unilay-stranded conductors made from round wires of aluminum 1350 and 8000 series of aluminum alloys, for insulated conductors for electrical purposes. Aluminum 1350 wires in tempers -H19 (extra hard), -H16 or -H26 (3/4 hard), -H14 or -H24 (1/2 hard), and -H142 or -H242 (1/2 hard) and 8000 series aluminum alloys wires in tempers “0” and H1X or H2X are permitted. These conductors shall be constructed with a central core wire surrounded by two layers of helically laid wires, resulting in an outer diameter equal to the compressed-stranded equivalent conductors.
Note 1: For the purpose of this specification, combination unilay conductor is defined as follows: a central core wire surrounded by a layer of six helically laid wires of the same diameter as the core wire with a helically laid outer layer containing six smaller wires alternated between six wires of the same diameter as the wires in the layer underneath. Both layers have a common length and direction of lay (see Fig. 1).
| Author | ASTM |
|---|---|
| Editor | ASTM |
| Document type | Standard |
| Format | File |
| Confirmation date | 2018-03-01 |
| ICS | 29.060.20 : Cables
|
| Number of pages | 6 |
| Replace | ASTM B786/B786M-08(2013)e1 |
| Set | ASTMVOL0203 |
| Year | 2013 |
| Document history | ASTM B786/B786M-08(2013)e1 |
| Country | USA |
| Keyword | ASTM 786;ASTM B786;ASTM B786;10.1520/B0786_B0786M-08R18 |