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In Floor Cellular Raceway Systems - utilize enclosed steel raceways located within a concrete floor slab to distribute power, data, and telecom cabling throughout a space to any location where these services are required today – and where they may be required in the future.
FMT is a raceway, but not a conduit and is described in a separate NEC Article 360. It only comes in 1/2" & 3/4" trade sizes, whereas FMC is sized 1/2" ~ 4" trade sizes. NEC 360.2 describes it as: "A raceway that is circular in cross section, flexible, metallic and liquidtight without a nonmetallic jacket."
Fill capacity is provided for perimeter raceways. Design requirements for poke-thru fittings. Access floor heights are adjusted. In-floor systems include underfloor duct and cellular raceways. Pathway fill is provided for cable tray. A discussion of telecommunications diversity has been added. Noise reduction guidelines have been added.
An electric is a batten that incorporates electrical cables above the pipe, often enclosed in a raceway. It typically has power cables for lights and DMX512 data cable for lighting control, and may also have audio cables for microphones. The cables emerge from one end of the batten and continue through a snake to dimmers, control boards, or ...
One countermeasure of fiber tapping is encryption, to make the intercepted data unintelligible to the thief. [4] Another is to deploy a fiber-optic sensor into the existing raceway, conduit, or armored cable. In this scenario, it can be detected if someone attempts to physically access the data (copper or fiber infrastructure).
Raceways are used to protect cables from damage. Insulated wires may be run in one of several forms between electrical devices. This may be a specialised bendable pipe, called a conduit , or one of several varieties of metal (rigid steel or aluminium) or non-metallic ( PVC or HDPE ) tubing.