Applicability / Design Basis: CCTV / imaging systems must be designed to achieve visual identification of persons, objects, or scenes, in accordance with the Authority Having Jurisdiction (AHJ). Mounting & Enclosures: Enclosures and mounts must be tamper-resistant and provide protection against moisture, temperature extremes, and vandalism that could degrade image quality. Camera / Illumination / Imaging Conditions: Design must account for backlighting, low-light conditions, glare, contrast, and lens selection. Features like automatic compensation may be required to maintain usable images. Wiring / Cabling: All wiring must comply with NFPA 70 (NEC). Low-voltage video wiring must be separated from power wiring to reduce interference. Power Supply & Redundancy: CCTV devices must have reliable power. Both primary and secondary power sources are required. Backup power must sustain operations during outages; switchover must occur within 10 seconds without unacceptable signal loss....
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