If you need to work quickly, shop our flexible metal conduit, which takes less time to install. This conduit has a waterproof jacket which means that it can be used in a variety of applications, including those that involve exposure to hazardous areas. Articles 348 and 350 of the national electrical code cover the installation requirements for fmc and lfmc.
Conduit Buying Guide at Menards®
Flexible metallic conduit is also known as fmc and this is a type of flexible conduit used in commercial buildings, specifically underground car parks.
It’s useful for outdoor applications and wet interior areas and requires fittings that are also watertight.
Four exceptions are for when the conduit is fished, where flexibility is needed, length not exceeding 900 mm (3 ft.) at terminals, lengths not exceeding 1.8 m (6 ft. Code on flexible metal conduit (fmc) and liquid tight flexible metal conduit (lfmc). Delikon 6 inches large diameter metal liquid tight conduit is most suitable for protecting power plant, water treatment plant, brides, and industry electrical and communication cables. It must be supported and secured not more than 1.4 m (4½ ft.) apart.
There is no length limitation specified for trade size 1/2 through 4 of either fmc or lfmc.
Liquidtight flexible metal conduit (lfmc) has a tighter and flatter fit of its spiral metallic tape or armor as compared fmc. Fmc is made by coiling up metal and interlocking all of the rings together. Liquatite® 22101 type la flexible conduit, 3/4 in trade, 0.82 to 0.84 in id x 1.03 to 1.05 in od, 100 ft l, steel. Cables in accordance with article 350 of the national electrical code.
Liquid tight flexible metal conduits or lfmcs are used to cover cables which need both flexibility and protection from moisture.
Standard fmc is used in dry indoor locations, often for short runs between a wall box and a motor or fixed. Liquid tight conduit fill chart.the results are the numbers of wires of that gauge, that can be run through that size, of that kind of conduit such as.1 maximum number of conductors or fixture wires in electrical metallic tubing.or under permanently moist cinder fill. Liquid tight flexible metal conduit lfmc tighter flatter fit with thermoplastic outer jacket that is liquid tight and is commonly used as a flexible connection to central air conditioning units located outdoors. It must be securely fastened within 300 mm (12 in.) of a conduit termination.
Following are a few photo's of different liquid tight flexible metal conduit cable assemblies.
It is commonly used with outdoor equipment, such as air conditioner units. Flexible metal conduit (fmc) is also called greenfield, after the name of its inventor. If a grounding conductor is provided in. In addition to metal flex conduit, we also offer emt conduit, a thinner, less protective conduit, made of coated steel, that can be bent with a special tool.
Not more than 6 ft of fmc, lfmc, and flexible metal tubing are in the same grounding fault path.
Where terminated in fittings investigated for grounding andwhere. The nec permits longer runs of flexible metal conduit (fmc) with certain limitations. It has a spiral construction that makes it flexible so it can snake through walls and other structures. When your task includes corners and bends, use flexible conduit.
Flexible metal conduit—fmc and lfmc.
Both exceptions allowing fmc limit the length to 6 ft. This forms a flexible hollow tube that can be used to pull wires through.
