Community College of Allegheny County OCS Security Camera System Pittsburgh, PA
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HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING A. Performance Criteria: 1. Regulatory Requirements: Listed and labeled in accordance with NFPA 70 and marked for intended location and use. 2. General Characteristics: a. ASTM C858 for design and manufacturing processes. b. SCTE 77. B. Source Quality Control: 1. Precast Concrete Utility Structures: Test and inspect in accordance with ASTM C1037. 2. Polymer Concrete and Nonconcrete Handhole and Pull-Box Prototypes: Test prototypes of handholes and boxes for compliance with SCTE 77. Strength tests must be for specified tier ratings of products supplied. Testing machine pressure gages must have current calibration certification, complying with ISO 9000 and ISO 10012, and traceable to NIST standards. a. Tests of materials must be performed by independent testing agency. b. Strength tests of complete boxes and covers must be by independent testing agency or manufacturer. Qualified registered professional engineer must certify tests by manufacturer.
C.
Precast Concrete Handholes and Boxes: 1.
Description: Factory-fabricated, reinforced-concrete, monolithically poured walls and bottom unless open-bottom enclosures are indicated. Frame and cover must form top of enclosure and must have load rating consistent with that of handhole or box. 2. Hubbell or approved equal. 3. Configuration: Units must be designed for flush burial and have open bottom unless otherwise indicated. a. Cover Finish: Nonskid finish must have minimum coefficient of friction of 0.50. b. Cover Legend: Molded lettering, "TELE-COM" . 4. Duct Entrances in Handhole Walls: Cast end-bell or duct-terminating fitting in wall for each entering duct. a. Type and size: Match fittings to duct to be terminated. b. Fittings must align with elevations of approaching duct and be located near interior corners of handholes to facilitate racking of cable.
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