Uf B Wire Ampacity

Nec tables are based on table 310 15 b 16 formerly table 310 16 allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c not more than three current carrying conductors in raceway cable or earth directly buried based on ambient temperature of 30 c.

Uf b wire ampacity.

The corrected and adjusted ampacity. Jacket thickness for all nm b cable is 30 mils color code for 2 2 conductor cable is black white red and white with red stripe. Copper rhh rhw 2 use 2 view pdf. Copper tffn tfn tewn view pdf.

Allowable ampacities of insulated conductors rated 0 2000 volts as excerpted from the 2002 national electrical code ampacities of not more than three current carrying conductors in raceway cable or earth. U nderground f eeder and b ranch circuit wiring cable applications. Southwire s copper uf b cable is used in applications that include outside lamp posts pumps and other loads. Annunciator bell wire view pdf.

It can also be used for outbuildings such as garages and barns. The app limits the final ampacity of the wire to the most conservative of. The equipment temperature limitation default values as described in nec 110 14 c 1. Copper uf b view pdf.

Or the cable type temperature limitation. Set your store to see local availability add to cart. View the southwire company 100 ft. A 2 500 b 1 000 c 500 d 125 e 250 f 500.

Underground feeder building wire assortment 112 69 1 13 ft 112 69 1 13 ft free delivery. The cable can also be used as direct burial cable. Category 5e cable view pdf. What does ufb mean.

Uf b cable 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. Low energy circuit cable type uf single conductor view pdf. Where the number of current carrying conductors in a raceway or cable exceeds 3 the allowable ampacities shall be reduced per the table below. Usually a general purpose house circuit is designed for 20.

Burglar alarm cable view pdf. Uf b has a heat capacity of 90 c and is rated at 600 volt. Uf b feeds from a distribution point in an existing building. Access control cable view pdf.

You must use the correct size wire for the current load requirement of the circuit to prevent the wire from overheating. Uf b wire s formal name refers to its uses. Current is measured in amperes or amps. Nm b is permitted to be.

Table 310 15 b 3 a adjustment factors for more than three current carrying conductors in a raceway or cable. Ampacities per national electrical code section 310 15 and 334 80 2011 edition note.