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At what height is non-metallic sheathed cable considered protected from physical damage in USA?
Wiki User
∙ 16y ago
When run exposed on walls in unfinished basements the 2005 NEC clarifies that the entire length of NM cable run exposed below the "framing members" above that wall, must be protected from physical damage. Also, the end of the protecting sleeve must have a non-metalic bushing. The NEC does not specify a measurement, but it refers to "in exposed work". Everything below the beam is "exposed". The workbook also shows sample sketches that show the protecting sleeve going all the way up to the ceiling beam. If running the cables on the underside of the framing members (beams) physical protection is not required. But smaller size cables require a running board between the cable and the beams. reference 2005 NEC 334.15C
Wiki User
∙ 16y ago
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What size equipment grounding conductor is used with the following sizes of nonmetallic sheathed cable?
hawt
For nonmetallic-sheathed cable may the uninsulated conductor be used for purposes other than grounding?
no
What size equipment grounding conductor is used with the following sizes of nonmetallic-sheathed cable 14?
hawt
What is the difference between thhn and romex?
THHN is a heat resistant thermoplastic insulated conductor, usually a single conductor. Romex is a brand name for a nonmetallic sheathed cable, it has multiple conductors inside, the insulated ones are insulated with THHN insulation.
How do you pronounce sheathed?
SHE-thd
The use, installation, and construction specifications of nonmetallic-sheathed cable are covered within article?
NEC, Article 336 covers the use, installation and construction specifications for nonmetallic-sheathed cable. Nonmetallic-sheathed cable may be used for either exposed or concealed wiring.
Is nonmetallic sheathed cable permitted in your area for resident wiring?
Yes
What size equipment grounding conductor is used with what sizes of nonmetallic sheathed cable?
hawt
What size equipment grounding conductor is used with the following sizes of nonmetallic sheathed cable?
hawt
For nonmetallic-sheathed cable may the uninsulated conductor be used for purposes other than grounding?
no
What are the colors of the conductors in nonmetallic sheathed cable for two wire cable?
The wire conductor colors in a non metallic sheathed cable are black, red, white, and a bare copper.
What size equipment grounding conductor is used with the following sizes of nonmetallic sheathed cable 14?
hawt
What size equipment grounding conductor is used with the following sizes of nonmetallic-sheathed cable 14?
hawt
What are the colors of conductors in nonmetallic sheathed cable for 2-wire cable?
The colours will be, black, white and a bare copper ground.
When nonmetallic-sheathed cables are bunched or bundled together for distances longer than 24in 600mm what happens to their current-carrying ability?
Increases
What is Electrical sheathing?
Electrical Sheathing is various forms of metallic or non-metallic covering over conductors. Nonmetallic-Sheathed Cable is what is known by the brand name Romex.
What is the difference between thhn and romex?
THHN is a heat resistant thermoplastic insulated conductor, usually a single conductor. Romex is a brand name for a nonmetallic sheathed cable, it has multiple conductors inside, the insulated ones are insulated with THHN insulation.
