CarlosMesa
New member
- Location
- Miami, Florida
Is it an NEC requirement to bond an EMT raceway carrying fiberoptic?
First , and this scares me, I agree with the Old Man Moderator.
In 770.3 it makes reference back to compliance with other Articles and Sections 770.110 Raceways for Communication Wires and Cables Chapter 3 applies for permitted raceways and their installation ,Article 250 applies for the grounding and bonding or raceways with all of Chapter 3 being included for raceways.
The good news is EMT is listed in 250.118 as a EGC and the note 1 of the definition reminds us that the EGC serves bonding also so follow the guidance of 300.10 and you are indeed bonding the EMT.
The reference in 770.110(A)(1) is broad, the entire chapter 3 and all references within.
I see in art. 770.110(A)(1) that you can use any method of raceways specified in Chapter 3 and the raceways must be installed in accordance with Chapter 3. IMO that means they raceways must be connected to the grounding system of the building.
First , and this scares me, I agree with the Old Man Moderator.
In 770.3 it makes reference back to compliance with other Articles and Sections 770.110 Raceways for Communication Wires and Cables Chapter 3 applies for permitted raceways and their installation ,Article 250 applies for the grounding and bonding or raceways with all of Chapter 3 being included for raceways.
770.3 Other Articles. Installations of optical fiber cables and raceways shall comply with 770.3(A) and (B). Only those sections of Chapter 2 and Article 300 referenced in this article shall apply to optical fiber cables and raceways.
770.110(A)(1) Raceways Recognized in Chapter 3. Optical fiber cables shall be permitted to be installed in any raceway included in Chapter 3. The raceways shall be installed in accordance with
the requirements of Chapter 3.