This course provides students an overview of how to fix what is found inside a faulty panel. Review the types of circuits and the common causes of circuit faults, and take an in-depth look at how to locate the sources of circuit faults.
After completing this course you will be able to:
- Describe the different types of circuits
- Explain the characteristics of a circuit in a normal state
- Describe the common causes of circuit faults
- Describe how to determine a circuit fault
- Identify the process of locating the source of a circuit fault
Topics Explored
Circuit Types
- Contacts – Normally Opened and Normally Closed
- Classes of Circuits
- Detector Compatibility
- Addressable Circuits
Circuit Faults
- Importance of Visual Inspection
- Circuit Characteristics
- Circuit Check – Determining if a circuit is normal
Circuit Faults: Open
- What is an open circuit?
- When does the panel indicate an open zone?
- Open zone causes
- What happens when circuit is open
- Determining if circuit is open
- Correcting the problem
- Troubleshooting steps
Circuit Faults: Short
- Causes of shorted circuit
- What happens when circuit is shorted?
- Determining if a circuit is shorted
- Causes of ground faults
- Determining if a circuit has a ground fault
Circuit Faults: Foreign Potential
- Definition of foreign potential
- Definition of AC induction
- Determining if a circuit has AC induction
- Tips to avoid AC induction
- Definition of foreign DC potential
- Determining if a circuit has foreign DC potential
- Definition of EMI RFI
- Examples of RFI interference
- Determining if a circuit has RFI
Circuit Faults: High Low Resistance
- Determining if a circuit has a high resistance
- What causes high resistance on a circuit
- Cold solder joints
- Appropriately sizing wiring
Ethernet Circuits
- What is a network?
- Troubleshooting an Ethernet connection
- Wiring scheme
- Troubleshooting Ethernet circuits
- Troubleshooting Ethernet cable
- The ten commandments of wiring
What to expect in this course: The presentation includes text, audio, graphics, videos and activities to help you absorb the information presented. This course has a short quiz at the end, which you will be required to pass with a 70% or greater to complete the course.