Is it written anywere that we can splice a smaller conductor onto a larger conductor to accommodate a lug or termination size limitation? Here's the case: To feed numerous site lighting poles, a few hundred feet from our building, we determined that a #8 conductor is needed, for voltage drop mitigation purposes. We're controlling these site lighting luminaires from a low voltage, relay based, networked lighting control panel. None of the branch circuits exceed 20A, so we're simply tying the 20A relays directly to the site lighting branch circuit conductors. The issue is how does one connect a #8 conductor to a relay designed to accept #12 conductors.