![]() Voltage drop is the loss of voltage that occurs over the wire due to natural resistance. Does Voltage Drop Affect 200 Amp Wire Size? You can use copper wire over a longer distance. However, the aluminum gauge will be higher due to its reduced conductivity and heat resistance properties. You can use aluminum and copper for a 200 amp panel wire size. Underground 200 Amp Wire Size for Longer Runs Copper ![]() You’ll need to increase the AWG or kcmil wire size for long distances. The distance your service entry wire needs to travel will determine whether you use aluminum or copper wire and the gauge necessary. Long runs require a higher gauge wire to minimize voltage drop. The maximum voltage drop (we will discuss shortly) allowed is 3%. When calculating wire size, you must know how far the service entrance wires will run from the electrical meter base to the electrical panel. You might find that a smaller amp panel may be sufficient. Aluminum service wiring is a grouping of smaller solid aluminum strands rather than one solid wire, making the aluminum wire safe to use in residential homes.Ĭonsider doing an electrical load calculation before committing to a 200 amp electrical panel. Licensed electricians find it easy to work because it is lightweight and feeds well through the electrical conduit, making installation faster and lowering material and labor costs.Īluminum wiring expands and contracts with heat which causes the wire connection to loosen over time, raising the risk of an electrical fire.
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