This package contains cables that can be used to represent a
line in a electric grid. The package contains several functions and
records to parametrize cables either using default values or values
from commercial cables.

The package Buildings.Electrical.Transmission.Grids
contains models of electrical networks.

#### Commercial cables

The package contains several low voltage and medium voltage
cable with pre-defined physical and geometrical properties like
characteristic resistances and diameters. There are different
conventions to measure the cables.

##### Cross-sectional area

A measure of cross-sectional area in square mm. E.g. 50
mm^{2} wire has a nominal circula area of 50 mm^{2}
and a diameter of 7.98 mm.

##### AWG (American Wire Gauge)

A measure of wire thickness (which also dictates cross-sectional
area, and for a given material, ampacity). E.g. 24 AWG wire has a
nominal diameter of 0.0201 in or 0.511 mm.

##### kcmil (thousand of Circular Mils)

kcmil is an abbreviation for thousands of circular mils, an old
measurement of wire gauge. 1 kcmil = 0.5067 square millimeters. A
mil is 1/1000 inch. A wire 200 mils in diameter is 40 kcmil. kcmil
is generally used for very large-diameter wire. Most wires use
AWG.

## Contents

Name |
Description |

Functions |
Package that contains functions to compute cable
properties |

Grids |
Package that contains different types of grids |

LowVoltageCables |
Package of low voltage electricity cables used in distribution
grid |

MediumVoltageCables |
Package of medium voltage electricity cables used in
distribution grid |

Types |
Package that contains cables materials |

BaseClasses |
Package that contains partial models for lines and cables |

- June 3, 2014, by Marco Bonvini:

Added User's guide.

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