These requirements cover closed-circuit television equipment that: a) Are intended for commercial use on supply circuits as defined in the National Electrical Code@ NFPA 70; and b) Receive their signals from a video-recorded medium or image-producing devices in a closedcircuit television system. These requirements cover closed-circuit television equipment ?C such as video tape recorders; video-receiving@ -processing@ -recording@ -producing@ and -amplification equipment; video cameras; and the like. These requirements also cover auxiliary equipment and accessories intended for use with closed-circuit television systems. These requirements also cover portable closed-circuit television equipment of the types described in 1.2 that are intended for use with a vehicular@ marine@ or any other battery circuit as the power supply means. These requirements do not cover video monitors@ as these products are covered by the: a) Standard for Audio-Video Products and Accessories@ UL 1492; b) Standard for Information Technology Equipment@ UL 1950; c) Standard for Information Technology Equipment@ UL 60950; and d) Standard for Information Technology Equipment Safety ?C Part 1: General Requirements@ UL 60950-1. These requirements do not cover video cameras with integral electronic viewfinders. These requirements do not cover tape-head demagnetizers or bulk tape erasers intended for use with video products and do not cover general-purpose tape-head demagnetizers or bulk tape erasers@ as those products are covered by the requirements for household and commercial tape recorders in the Standard for Audio-Video Products and Accessories@ UL 1492 and the Standard for Commercial Audio Equipment@ UL 813. Commercial video products provided with a means for receiving commercially broadcasted video signals and household video products are covered by the Standard for Audio-Video Products and Accessories@ UL 1492. A cart or stand that is not intended to be used with a specific product is covered by the Standard for Tall Institutional Carts for Use With Audio-@ Video-@ and Television-Type Equipment@ UL 1667@ and the Standard for Household@ Commercial@ and Professional-Use Carts and Stands for Use with Audio/Video Equipment@ UL 1678.