Does armored fiber cable need to be grounded?
If the fiber-optic cable in a system needs extra protection, there is an alternative to using conduit or a bonded and grounded conductive cable, such as an all-dielectric armored cable. Because all-dielectric armored cable has no metallic components, there is no need to ground or bond the cable.
Is armored cable ground?
Another difference between the two cable types is the ground path. AC uses a bare aluminum bond wire plus the armor as the ground path, Traditional Type MC Cables utilize a green insulated grounding conductor and the armor is not an approved grounding means.
How should fiber-optic cable with metal elements such as armor or strength members be prepared?
If the fiber-optic cable has metallic armor or strength members, the cable must be bonded to the closure which also must be bonded to ground.
How is armored cable properly grounded?
BX cable is grounded via its metal armor or internal green plastic-coated ground wire. Because vinyl is not conductive, grounding is achieved by a separate bare copper ground wire in the bundle.
Which optical fiber cables must be grounded?
A fiber-optic cable including non-current-carrying metallic components, such as armor or metallic strength members, is deemed conductive, according to NEC Article 770. This is why, according to NEC Article 770.100, conductive fiber-optic cables must be joined and grounded.
Are fiber optic cables grounded?
So many communications cabling workers do not see the necessity of grounding fiber-optic cable, but codes on both sides of the U.S./Canada border agree that any cable containing metal must be grounded.
What can I use if I don’t have a ground wire?
If the electrical box is not metal, then simply tape the end of the light fixture’s ground wire with electrical tape and let it float in the electrical box. Your only other alternative is to upgrade the wiring in the house, which will cost many thousands of dollars.