These requirements CCTV equipment intended for commercial use on supply circuits as defined in NFPA 70, and receive their signals from a video-recorded medium or image-producing devices in a CCTV system. These requirements CCTV equipment such as video tape recorders; video-receiving, -processing, -recording, -producing, and -amplification equipment; video cameras; aux. equipment and accessories intended for use with CCTV systems; portable CCTV equipment that are intended for use with a vehicular, marine, or any other battery circuit as the power supply means.