adam drozd
Member
How far can you run greenfield (fmt) with out a green ground wire?
Does the code require the ground wire for all runs?
Does the code require the ground wire for all runs?
adam drozd said:How far can you run greenfield (fmt) with out a green ground wire?
George Stolz said:I've heard of what I call "Flex" (FMC) also called greenfield. Or maybe I just totally misunderstood?
TOOL_5150 said:Flex and FMC are same... greenfield is armored cable
~Matt
frizbeedog said:I say OP is confused and got us confused.:grin:
TOOL_5150 said:Basic armored cable was developed in the early 1900s by Harry Greenfield and Gus Johnson, who called their product BX cable. It has become a generic term for all armored cable.
Quite a few people dont know the difference. Greenfield got its name by its inventor, who made armored cable.. not flexible conduit.![]()
~Matt
TOOL_5150 said:Basic armored cable was developed in the early 1900s by Harry Greenfield and Gus Johnson, who called their product BX cable. It has become a generic term for all armored cable.
Quite a few people dont know the difference. Greenfield got its name by its inventor, who made armored cable.. not flexible conduit.![]()
~Matt
TOOL_5150 said:Flex and FMC are same... greenfield is armored cable
~Matt
When you decide to use "Greenfield" on the job you are really dating yourself, so I would just call it "flex". It was invented in 1902 by Harry Greenfield and Gus Johnson and when it was listed by Sprague Electric Co. it was called "Greenfield flexible steel conduit". Today the term "Greenfield" is commonly used for all FMC (flexible metal conduit-NEC Art. 348). FMC is also manufactured in both aluminum and steel. The NEC defines FMC as "A raceway of circular cross section made of helically wound, formed, interlocked metal strip."
ultramegabob said:Greenfield ... in my area flexible conduit is commonly referred to as Greenfield. Its slang, so arguing with someone about proper slang is like beating your head on a wall.