Overhead Conductor Cable Sizes

An overhead line with bare conductors insulated by air is typically less costly than a cable with insulated conductors.

Overhead conductor cable sizes.

Common conductors are copper and aluminum. Selecting a proper type of conductor for overhead lines is as important as selecting economic conductor size and economic transmission voltage a good conductor should have the following properties. Insulation select the thermal rating of the insulation on the wire. All aluminium conductors steel reinforced acsr consists of stranded or solid steel core enclosed by strands of aluminum.

The aluminum wires in a round wire stranded conductor leave approximately 25 of an air gap between the aluminum strands. General cable s transpowr overhead transmission conductors are 100 recyclable and help ensure maximum line efficiency and long lasting reliability for current and future power transmission systems. Overhead transmission line acsr conductor with multi size. To calculate ground wire size use the ground wire size calculator.

73 electric utility trapezoidal wire tw conductors for overhead transmission conductor applications general cable supplies tw compact style conductors. The steel core may consist of a single wire 7 19 37 or more concentrically stranded wires. A conductor is one of the most important components of overhead lines. Accr or other types of conductors.

The wire size chart below shows allowable ampacities of insulated conductors rated up to and including 2000 volts 60 c through 90 c 140 f through 194 f not more than three current carrying conductors in raceway cable or earth directly buried based on ambient air temperature of 30 c 86 f. A more common approach is covered line wire. Aac aaac acsr form part of the family of overhead conductors transmission conductors and power distribution conductors. Table of common electrical wire sizes and amps or fuse ratings residential sec cable other wire ampacities for 1 3 current carrying conductors in cable earth or raceway for 120 240 volt systems sized between 100 and 400 amperes.

Conductor choose the material used as a conductor in the wire. Electrical conductor wire size or gauge awg or kcmil. These cables are formally known as all aluminium conductor aac all aluminium alloy conductor aaac and aluminium conductor steel reinforced acsr. Acsr bare overhead conductor product construction acsr is a composite concentric lay stranded conductor consisting of a central steel core around which are stranded one or more layers of aluminum alloy 1350 h19 wires.

It is treated as bare cable but often is safer for wildlife as the insulation on the cables increases the likelihood of a large wing span raptor to survive a brush with the.