Community College of Allegheny County OCS Security Camera System Pittsburgh, PA
5. Install expansion-joint fitting with position, mounting, and piston setting selected in accordance with manufacturer's written instructions for conditions at specific location at time of installation. Install conduit supports to allow for expansion movement. G. Raceways Penetrating Rooms or Walls: 1. Seal raceway openings on both sides of rooms/walls with fire rated putty/firestopping.
3.4
INSTALLATION OF SURFACE RACEWAYS
A.
Install surface raceways only where indicated on Drawings.
B. Install surface raceway with a minimum 2 inch radius control at bend points. C. Secure surface raceway with screws or other anchor-type devices at intervals not exceeding 48 inch and with no less than two supports per straight raceway section. Support surface raceway in accordance with manufacturer's written instructions. Tape and glue are unacceptable support methods.
3.5
INSTALLATION OF BOXES AND ENCLOSURES
A. Provide boxes in wiring and raceway systems wherever required for pulling of wires, making connections, and mounting of devices or fixtures. B. Mount boxes at heights indicated on Drawings. If mounting heights of boxes are not individually indicated, give priority to ADA requirements. Install boxes with height measured to top of box unless otherwise indicated. C. Recessed Boxes in Masonry Walls: Saw-cut opening for box in center of cell of masonry block, and install box flush with surface of wall. Prepare block surfaces to provide a flat surface for a raintight connection between box and cover plate or supported equipment and box, whether installed indoors or outdoors. D. Horizontally separate boxes mounted on opposite sides of walls so they are not in the same vertical channel. E. Locate boxes so that cover or plate will not span different building finishes. F. Support boxes in recessed ceilings independent of ceiling tiles and ceiling grid. G. Support boxes of three gangs or more from more than one side by spanning two framing members or mounting on brackets specifically designed for purpose. H. Fasten junction and pull boxes to, or support from, building structure. Do not support boxes by conduits. I. Set metal floor boxes level and flush with finished floor surface.
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