| 摘要 |
An electrical system for a wall system formed from a plurality of serially connected wall panels. Each panel has at least one electrical terminal mounted thereon, and the terminals are joined by electrical cables or flexible electrical connectors. The electrical system is a seven-conductor system employing three live and three neutral conductors for defining three separate electrical circuits each having a separate neutral. A portable power-tap unit, specifically a receptacle unit, can be plugged into the power block for selective engagement with any one of the three circuits. The power-tap unit has a connector portion which plugs into the power block, which connector portion is defined soley by three contacts. Two of the three contacts, namely the live and neutral contacts, are mounted on a carrier which is slidably supported on the power-tap housing so as to be slidably displaced between three selected positions so that the power-tap can be selectively joined to any one of the three circuits.
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