Copperclad Steel Wire
Copperclad Steel Wire is the ideal solution for grounding wire for power type applications. Composed of a steel core with coppercladding, the steel wire gives the wire its strength and the consistent layer of copper provides electrical conductivity and resistance to corrosion. To manufacture Copperclad Steel Wire, carbon steel (low, high strength and extra high strength) is bonded with a uniform layer of oxygen-free coppercladding to achieve 30% and 40% IACS (International Annealed Copper Standard) conductivities. The material is available in a single wire, 3, 7 and 19 cable strands with some sizes jacketed to give the wire a different appearance to copper.
Soft Annealed Copperclad Steel Wire
Copperclad Steel Wire is a strong, non-rusting, efficient grounding conductor. It is composed of Coppercladding that is permanently bonded to the central steel core of each wire. Copperclad provides the same conductivity and corrosion resistance as copper while maintaining the high strength of steel. Dead Soft Annealed (DSA) Copperclad Steel Wire is very flexible for easy preparation and installation. When compared to solid copper, Copperclad Steel Wire has faster impedance to ground for better protection of lines and equipment plus a higher resistance to thermal expansion failures. It also reduces the fatigue damage caused by more than 10 times that of annealed solid copper. Copperclad Steel Wire is an excellent solution for areas with high rates of copper theft as the amount of copper used in the bonding process is minimal-6% to 10% depending on the conductivity. When Copperclad Steel Wire is used in place of copper, the grounding conductor is far less likely to be stolen. This feature is important not only from an economic standpoint, but also from the standpoint of safety and reliability. Often, the fact that a copper downlead has been removed is not evident until a surge current causes a failure in the system.
Selecting the Right Size for the Application
When selecting a conductor for a ground grid, it must meet the maximum fault current for the identified duration and meet a minimum breaking load as required by the substation design (typically 5,000 pounds). The key to properly sizing copperclad steel wire is the actual fault current requirement. Often copper is physically oversized to gain the physical strength needed in the application. With Copperclad, the physical strength is inherent to the product so the primary consideration is electrical. Table 2 below compares the ampacity ratings of copper and Copperclad Steel Wire which allows the user to visually select the Copperclad equivalent. For example: Requirements: The equivalent to 4/0 copper per the IEEE Fusing Chart is 19#9 40%. A typical maximum fault current for a distribution substation is ~18 kA at 30 cycles. Most engineers upsize to 4/0 copper in order to meet the mechanical strength requirement. AFL solution: A 2/0 copper or 7#6 Copperclad SteelWire conductor will meet this requirement instead of the larger size 4/0 copper commonly used for ground grids. The conductor safety margin for 7#6 Copperclad Steel Wire is 30% and meets the fault current and mechanical strength requirements.
Q1. Can I have a sample order for this product?
A: Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.
Q2. How do you ship the goods and how long does it take to arrive?
A: We usually ship by air or ocean shipping, It usually takes 10-30 days to arrive. For sample or small orders use DHL, UPS, FedEx, or TNT. It usually takes 3-5 days to arrive.
Q3. Do you have certificate for raw materials?
A: We build long-term relationship cooperation with qualified ISO9001 ROHS raw material suppliers
Q4. Do you offer OEM Service?
A:We accept OEM, and ODM. The product size and material are customized. Our own logo and own design are welcome. We will produce according to your requirements and description.
Q5. Do you offer a guarantee for the products?
A: Yes, we offer 1-2 years warranty on our formal products.
Q6. What is your Payment terms?
A: For large orders: T/T LIC
For small orders: T/T Western Union and Paypal are acceptable
Q7. What about delivery time?
A: 1) Samples: within one week.
2) Goods: 15-25 days usually.
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