In order to facilitate maintenance, when laying the cable, the joint well should be 1#, and the order should be analogized. Every hand hole that is a multiple of 5, 10, 15. The Fiber Optic Association, Inc. (FOA) was founded in 1995 to help develop the workforce to build the fiber optic networks to support a rapid expansion in communications and the Internet. (1) Before starting construction, the construction unit should carry out a quantitative count. Recommendations for Fiber Optic Cable Installation Where reels are supplied with protective material fitted over the cable, the protection should remain in place until the cable will be installed. During installation, all curvatures should be smooth. 2 meters (3-4 feet) deep to reduce the likelihood of accidentally being dug up. In extreme cold climates, cables may need to be buried at greater depths where there temperatures are colder and frost penetrates to. Installation of fiber optic cable demands precise planning and technique, and as fiber optic installers you'll need to assess pathways, select cable types, respect bending-radius and tensile limits, and test splices and connectors. FO-VC2 JOINT USE - VERICAL MIDSPAN CLEARANCES 48.