What is UF rated wire?

What is UF rated wire?

UF Cable. ”UF” stands for underground feeder; rated for in-ground and damp-area installation. Looks like NM-B cable but the wires are embedded as a group in solid thermoplastic (rather than individually encased in flexible thermoplastic).

What is UF copper wire?

Copper UF-B wire is typically used as an underground feeder cable to distribute power from an existing building to outdoor lighting fixtures, pumps, outbuildings and other outdoor equipment. The cable can also be used as direct burial cable.

How big is a #2 wire?

AWG Copper Wire Size and Data Table Chart @ 100 Degrees F

AWG Diameter Area
00 (2/0) 0.3648 67.4
0 (1/0) 0.3249 53.5
1 0.2893 42.4
2 0.2576 33.6

What is #2 Al wire?

#2 Stranded Aluminum XHHW-2 Wire XHHW-2 are primarily used in air duct, conduit or recognized raceways for services, feeders and branch circuit wiring as specified in the National Electrical Code.

What is the difference between UF wire and UFB wire?

The regular UF cable is well-suited only to be buried in conduit. The difference between them is UF-B construction indicates a better resistance to water and corrosion, as well as a superior temperature range.

Can UF wire be exposed?

The use of UF cable on the exterior surface of buildings or structures is permitted by Sec. 225.10(18) and Sec. 334.10(3) of the NEC. If the cable is exposed to physical damage it must be protected in accordance with Sec.

Can UF wire be buried without conduit?

UF cable can be direct buried (without conduit) with a minimum of 24 inches of cover. Wiring buried inside rigid metal (RMC) or intermediate metal (IMC) conduit must have at least 6 inches of ground cover; wiring in PVC conduit must have at least 18 inches of cover.

How do I calculate copper wire size?

FAQ

  1. Multiply the resistivity (Ω•m) of the conductor material by the peak motor current (A), the number 1.25, and the total length of the cable (m).
  2. Divide the result by the voltage drop from the power source to the motor.
  3. Multiply by 1,000,000 to get the result in mm2.

What amperage is #2 copper Good For?

Copper Wire Current Capacity

Wire Size AWG TW, UF (140°) USE-2, XHH, XHHW, -2, TA, TBS, SA, SIS, FEP, MI, RHW-2, THHN, ZW-2, THWN-2, FEPB, RHH, THHW, THW-2
1 165 220
2 140 190
3 120 165
4 105 140

What is #2 copper rated for?

Wire Size & Amp Ratings

Copper
4 70 95
3 85 115
2 95 130
1 145

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