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Service Wire 4 AWG 7 Strands Bare Copper Conductor Soft Annealed, Medium Hard, Hard Drawn Wire BST7S4

Service Wire 4 AWG 7 Strands Bare Copper Conductor Soft Annealed, Medium Hard, Hard Drawn Wire BST7S4

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  • Service Wire 4 AWG 7 Strands Bare Copper Conductor Soft Annealed, Medium Hard, Hard Drawn Wire BST7S4
Length: FT
Enter footage in the box - Cut to one length. Min 1 ft - Max 10000 ft.
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Product Information
Service Wire 4 AWG 7 Strands Bare Copper Conductor Soft Annealed, Medium Hard, Hard Drawn Wire BST7S4

Application: Suitable for use in electrical grounding systems (including counterpoise grounding) and on insulators for overhead transmission and distribution applications. Stranded conductors offer greater flexibility than solid. 

Standards: 
• ASTM Standards: 
• B-1 (hard drawn) 
• B-2 (medium hard drawn) 
• B-3 (soft or annealed) 
• B-8 (concentric lay stranded) 
• B-33 (tinned) 
• B-787 (combination strand) 
• REA/RUS Approved 
• Federal Standard QQ-W-343 
• RoHS Compliant

technical specification:
size awg 4
strand (no.) 7
stranding class A,B
nominal diameter overall (inch) 0.230
approx. net weight (lb/1000') 128.90
hard drawn min. breaking strength (lbs.) 1,938.0
hard drawn dc resistance (ohms/1000') @ 20°c 0.2636
medium hard drawn min. breaking strength (lbs.) 1,505.0
medium hard drawn dc resistance (ohms/1000') @ 20°c 0.2622
soft drawn dc resistance (ohms/1000') @ 20°c (bare) 0.2540
soft drawn dc resistance (ohms/1000') @ 20°c (tinned) 0.2637
ampacity* 155
service wire part number BST7S4
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