![](https://pma.metalformedu.org/pluginfile.php/23128/course/overviewfiles/AER-2007.jpg)
Wiring provides a pathway to power and control of almost every function in modern commercial airplanes. Knowledge of wire usage in an airplane is a valuable tool for airplane technicians.
Learning Objectives
- List the uses of wires in airplanes
- List the components of wires
- Understand the differences between material classes of wire
- Define the material grades of wire
![](https://pma.metalformedu.org/pluginfile.php/23136/course/overviewfiles/AER-2008.jpg)
Understanding the correct terms for wire components and collections of wires is very important for effective communications between aircraft technicians and engineering and quality personnel.
Learning Objectives
- Recognize different types of cables
- Understand the materials used in wires and cables
- Understand the advantages of stranded wire over solid wire in airplanes
- Recognize the importance of the plating on conductors
- Understand the AWG wire sizes
- Define CAU and perform CAU calculations
![](https://pma.metalformedu.org/pluginfile.php/23144/course/overviewfiles/AER-2009.jpg)
Understanding the basic identifiers of wires, cables, and wire bundles provides an excellent foundation for developing the skills to create and install wire bundles.
Learning Objectives
- Understand wire bundle, wire, and cable identifiers
- Define the differences among colored flag markers
- Understand markings for connectors
- Understand how to determine when a splice is to be installed
- Describe the uses of pink, green, and purple flag markers
![](https://pma.metalformedu.org/pluginfile.php/23152/course/overviewfiles/AER-2010.jpg)
Assembly electricians are often required to attach connectors during wire bundle installations. Knowledge of the tools and materials used to do this is very important.
Learning Objectives
- List the parts of a connector
- Understand the purpose of a backshell
- List the tools needed to strip insulation
- List the parts of a wire stripper
- Understand the difference between pin and socket contacts
- List the parts of a contact crimping tool
- Define clocking
![](https://pma.metalformedu.org/pluginfile.php/23160/course/overviewfiles/AER-2011.jpg)
Understanding the parts of circular connectors and how they mate with each other enables an assembly electrician to install these connectors correctly.
Learning Objectives
- Strip different size wires
- Crimp contacts onto wires
- Insert the contacts into a connector
- Clock a connector and backshell
![](https://pma.metalformedu.org/pluginfile.php/23168/course/overviewfiles/AER-2012.jpg)
Understanding the parts of MTC connectors and how they mate with each other enables an assembly electrician to install these connectors correctly.
Learning Objectives
- Describe an MTC connector
- Understand the process of keying MTC connectors
- List the parts of an MTC connector
- List the advantage of an MTC connector over a circular connector
![](https://pma.metalformedu.org/pluginfile.php/23176/course/overviewfiles/AER-2013.jpg)
Understanding the different methods, materials, and tools to tie wire bundles is important information for assembly electricians.
Learning Objectives
- Understand the areas of an airplane where cable ties are permitted
- Understand the process of tying wire bundles with lacing material
- Understand the process of tying wire bundles with cable ties
- Tie four different knots with lacing tape
- List the parts of a cable tie gun