Corrugated conduit is a type of protective tubing with a ribbed, flexible design used to route and safeguard electrical wires and cables. Unlike rigid conduit, which has smooth walls and requires precise bending or multiple fittings, corrugated conduit bends easily around corners, obstacles, and. MicroTechnology is a term given to smaller conduits and fiber used in Inside and Outside Plant Construction (ISP and OSP). MicroDucts were developed as a solution to house fiber cables that were smaller in size, but still carried significant capacity. Use the most current version at the time of contract award. Building telecommunications infrastructure and cabling shall be installed in accordance with UFC 3-580-01 and NECA/BICSI 568-2006, Standard for Installing Commercial Building. At the FOA, we're mainly concerned with communications fiber optics - telco, CATV, LAN, industrial, etc. These cables may include: Fiber optic cables (for high-speed internet and data transmission) Ethernet cables (Cat5e, Cat6, Cat6A for LAN networks) Coaxial cables (for TV and CCTV). 3. 1 Joint Requirements: There are two types of bell fi ts, interference fi t or clearance fi t, depending on the specifi cation of the conduit to be used.