| 摘要 |
<p>An installation box for electrical fittings, having a pair of fixing lugs (4) at opposite ends of a dia. of the box, and a second pair of similar lugs (2) extending further into the box at the ends of an orthogonal dia. The use of one pair or the other permits the use of the box for fittings or cover plates having alternative distances between centres for the fixing screws. The box enables fitting of non standard equipment.</p> |
