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
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
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
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
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
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
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