ACSR Bare Aluminum *
(83)Applications
Used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR offers optimal strength for line design. Variable steel core stranding enables desired strength to be achieved without sacrificing ampacity.
Construction
Aluminum alloy 1350-H-19 wires, concentrically stranded about a steel core. Core wire for ACSR is available with class A, B, or C galvanizing; "aluminized"" aluminum coated (AZ); or aluminum-clad (AW) - please see ACSR/AW spec for more information. Additional corrosion protection is available through the application of grease to the corer or infusion of the complete cable with grease.
Specifications
ACSR bare conductor meets or exceeds the following ASTM specifications:
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes
• B-231 Aluminum Conductors, Concentric-Lay-Stranded
• B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR)
• B-341 Aluminum-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)
• B-502 Aluminum-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AW)
• B-498 Zinc-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)
• B-500 Zinc Coated and Aluminum Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced (ACSR)
Ampacity
To determine correct ampacity by conductor size, please consult the National Electric Code, latest edition.
ACSR.jpg
ACSS Bare Aluminum *
(71)Applications
Used for overhead distribution and transmission lines. Designed to operate continuously at elevated temperatures up to 250°C without loss of strength. It sags less under emergency electrical loadings than ACSR; it is self-damping if prestretched during installation, and the final sags are not affected by long term creep of aluminum. The advantages make ACSS especially useful in reconductoring applications requiring increased current with existing tensions and clearances, new line applications where structures can be economized because of reduced conductor sag, new line applications requiring high emergency loadings, and lines where aeolian vibration is a problem.
Construction
ACSS is a composite concentric-lay stranded conductor. Steel strands form the central core of the conductor with one or more layers of aluminum 1350-0 wire stranded around it. The steel core carries most or all of the mechanical load of the conductor due to the (fully annealed or soft) temper aluminum. Steel core wires are protected from corrosion by galvanizing, aluminizing, or mischmetal alloy coating. Corrosion protection should be selected to suit the environment to which the conductor will be exposed. High strength steel core is also available.
Standards
ACSS conductor meets or exceeds the following ASTM specifications:
• B 500 Metallic Coated Stranded Steel Core for Use in Overhead Electrical Conductors.
• B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes.
• B802 Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR).
• B803 High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.
• B856 Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS). • B958 Extra-High-Strength and Ultra-High-Strength Class A Zinc-5% Aluminum- Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors.
Options
• Regular-Strength Class C galvanized steel core
• High-Strength Class A galvanized steel core
• Extra-High-Strength Class A galvanized steel core
• Ultra-High-Strength Class A galvanized steel core
• Regular-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
• High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
• Extra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
• Ultra-High-Strength Class A zinc-5% aluminum misch-metal alloy-coated steel core
• Aluminum-clad steel core
• 250°C Operating Temperature rating utilizing either the zinc-5% aluminum mischmetal alloy-coated steel core wires, or the aluminum-clad steel core wires.
• Non-specular surface finish
Ampacity
To determine correct ampacity by conductor size, please consult the National Electric Code, latest edition.
AAC Bare Aluminum *
(56) ApplicationsStranded 1350 aluminum conductors shown in this section of data are classified as follows: Class AA For bare conductors usually used in overhead lines. Class A For conductors to be covered with weather-resistant materials and for bare conductors where greater flexibility is required. Compact strand conductor for use in bare overhead applications or for use with weather-resistant coverings or insulations is also available. Classes refer to stranding and are an indication of relative conductor flexibility, AA being the least flexible, C the most flexible.
Construction
Aluminum alloy 1350-H19 wires, concentrically stranded.
Specifications
AAC bare conductors meet or exceed the following ASTM specifications:
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes
• B-231 Aluminum Conductors, Concentric-Lay-Stranded
• B-400 Compact Round Concentric-Lay-Stranded Aluminum 1350 Conductors
Ampacity
To determine correct ampacity by conductor size, please consult the National Electric Code, latest edition. AAC.jpg
AAAC-6201 Alloy Bare Aluminum *
(14) ApplicationsUsed as bare overhead conductor for primary and secondary distribution. Designed utilizing a high strength aluminum alloy to achieve a high strength-to-weight ratio; affords better sag characteristics. Aluminum alloy gives AAAC higher resistance to corrosion than ACSR.
Construction
Standard 6201-T81 high strength aluminum conductors, conforming to ASTM Specification B-399, are concentric-lay stranded, similar in construction and appearance to 1350 grade aluminum conductors. Standard 6201 alloy conductors were developed to fill the need for an economical conductor for overhead applications requiring higher strength than that obtainable with 1350 grade aluminum conductors, but without a steel core. The DC resistance at 20°C of the 6201-T81 conductors and of the standard ACSRs of the same diameter are approximately the same. Conductors of the 6201-T81 alloys are harder and, therefore, have a greater resistance to abrasion than conductors of 1350-H19 grade aluminum.
Specifications
AAAC bare conductor meets or exceeds the following ASTM specifications:
• B-398 Aluminum Alloy 6201-T81 Wire for Electrical Purposes
• B-399 Concentric-Lay-Stranded 6201-T81 Aluminum Alloy Conductors.
AAAC - 6201.jpg
Aluminum Tie Wire *
(3) ApplicationsUsed in overhead transmission and distribution line construction to mechanically secure components such as conductors to pin insulations. Aluminum Tie Wire is also used for grounding applications in line construction.
Construction
Solid soft drawn bare aluminum, series 1350 EC grade conductor.
Standards
ASTM B-230 Aluminum 1350-H19 Wire for electrical purposes AL TIE WIRE.jpg
