To separate the chamber of a standard device box into two compartments, one for high voltage power conductors and the other for low power signal conductors a deflectable isolation barrier is employed. In a first form the barrier, its supporting means and attaching means are formed as an integral unit...http://www.google.fr/patents/US6218613?utm_source=gb-gplus-shareBrevet US6218613 - Divided standard device inch box
