Looking for suggestions on box fill calculations I've reviewed Article 314 and Table 314.16(B) concerning box fill calculations. Do these apply to low voltage cables - CATV, cat5e, etc. Table 314.16(B) references single conductors. How do I apply this to jacketed multiconductor cable
Box fill calculations - low voltage
- Thread starter DW98
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- New Jersey
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- Journeyman Electrician
From a code perspective they do not apply.
There are a lot of other issues to consider in regard to sizing boxes for low voltage, but NEC 312 or 314 isn't among them. Bending radius of the various cables may become an issue in regard to signal if you were to try and jam cables into a small box.
Might want to hear what some of the low voltage guys may post later.
Might want to hear what some of the low voltage guys may post later.
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
Don't worry about it.
- Location
- Logan, Utah
I agree with Rob.
2008 NEC Section 800.110 has a new sentence added that states the raceway fill tables of Chapter 3 and Chapter 9 shall not apply. This is for communications circuits.
820.110 has an exception that states basically the same thing for CATV installations.
Chris
What is point in using compression fittings with a 4S box?
Anyone?
Bueller?... Bueller?... Bueller?
chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
Other than specs
...I have an equally ridiculous spec of 4S boxes and rigid conduit :roll:
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I've seen rigid with boxes. What's so weird about that?Other than specs
It would make sense to use EMT with S/S fittings with a 4S...IMHO.
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