A commonly held misperception is that you can’t splice service-entrance conductors. Actually, you can [230.46] and sometimes you should. It’s an engineering decision, not an NEC-based decision. A few reasons to avoid splicing service-entrance conductors are you add connections that: Are potential points of failure. Must be inspected and maintained. Develop a resistance. Are most likely difficult to get to for maintenance. May require coordination with the ...
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