Fiber optic cable should be laid in trenches, soft soil or sand layer with thickness not less than 100 mm along the upper, lower and adjacent sides of the full length of the cable. 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. They define a minimum baseline of quality and workmanshi for installing electrical products and systems. NEIS® are intended to be referenced in contrac documents for electrical construction ation or liability to users of this publication. At first,to ensure proper installation of buried optical cables, it is important to avoid crossing or overlapping cables in the same groove. In this method, a trench of about 1·5 meters deep and 45 cm wide is dug. However, simply hitting this depth isn't enough to guarantee your network survives.
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