Community College of Allegheny County OCS Security Camera System Pittsburgh, PA
3.3
INSTALLATION
A. Grounding Conductors: Route along shortest and straightest paths possible unless otherwise indicated or required by Code. Avoid obstructing access or placing conductors where they may be subjected to strain, impact, or damage. B. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance except where routed through short lengths of conduit. 1. Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate any adjacent parts. 2. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install bonding so vibration is not transmitted to rigidly mounted equipment.
3.4
FIELD QUALITY CONTROL
A.
Tests and Inspections: 1. After installing grounding system but before permanent electrical circuits have been energized, test for compliance with requirements. 2. Inspect physical and mechanical condition. Verify tightness of accessible, bolted, electrical connections with a calibrated torque wrench according to manufacturer's written instructions.
B. Report measured ground resistances that exceed the following values: 1.
Power Distribution Units or Panelboards Serving Electronic Equipment: 3 ohm(s).
C. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Engineer promptly and include recommendations to reduce ground resistance.
END OF SECTION 260526
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