R-1 — لوائح التركيبات الكهربائية
780 ملحقات الأسلاك - صناديق التركيب
الصفحة 33 في الوثيقة الأصلية
عرض PDF780 WIRING ACCESSORIES - MOUNTING BLOCKS &BOXES
780-1 Where conduits are run on the surface of walls of the building, all branch switches, sockets, ceiling
roses, etc., shall be mounted on purpose made galvanized, P.V.C. or equivalent boxes specially design ed for
surface installation. All such boxes shall be securely fixed to the structure of the building in such a manner
that they cannot rotate or rock throughout the life of the installation.
780-2 Where conduits are run buried in walls of the building, all branch switches, sockets, ceiling roses,
etc., shall be housed in purpose made galvanized, PVC or equivalent boxes and all switch plates, socket
plates and accessories shall be installed flush with the plaster.
33
780-1 Where conduits are run on the surface of walls of the building, all branch switches, sockets, ceiling
roses, etc., shall be mounted on purpose made galvanized, P.V.C. or equivalent boxes specially design ed for
surface installation. All such boxes shall be securely fixed to the structure of the building in such a manner
that they cannot rotate or rock throughout the life of the installation.
780-2 Where conduits are run buried in walls of the building, all branch switches, sockets, ceiling roses,
etc., shall be housed in purpose made galvanized, PVC or equivalent boxes and all switch plates, socket
plates and accessories shall be installed flush with the plaster.
33