The objective of this module is to draw attention to the high voltage hazards that can occur on telecommunication circuits entering substations and power stations, and to review the protection devices that are used to combat this problem. After study of the videotape and the associated workbook the participants should be able to understand the following overall concepts and apply them in their day-to-day activities. They will also be able to answer test related questions on these subjects: Communication line interface, Routing of telephone cables by Telco, Effect on telephone lines of power system faults, Longitudinal common mode induction, GPR - Ground Potential Rise, Remote ground and local ground, High voltage hazards to personnel and equipment, Location of demarcation interface, Standard telephone line protection, Air gap arrestors, Carbon block protectors, Gas tube protectors, Solid-state protectors, Limitations of protectors, Disadvantage of voltage clamping (i.e. circuit shut down), Mutual drainage reactor, High voltage interface, Dedicated entrance cable; features, Grounding of dedicated cable, High voltage special protection, Neutralizing transformer, Neutralizing reactor, Isolation transformers, High voltage relay for DC signals, Safety precautions for personnel, Optical isolators: teleline isolator, TUCON fiber optic link, Fiber optic cable and multiplexer.
If you are taking this course for NERC credit, the following credits will be reported.
- Trainees will be able to explain the high voltage hazards associated with telephone lines that connect to communication circuits in substations and power stations.
- Trainees will be able to explain the terms 'local ground' and 'remote ground' and describe the dangers associated with a potential difference between the two.
- Trainees will be able to describe standard protective devices that are used on telephone lines and the limitations of these devices.
- Trainees will be able to explain which protective devices are suitable for application on communication lines requiring Trainees will be able to various types of high voltage special protection (HVSP) devices that are used to protect communications circuits that may be subject to high voltage rises.
- Trainees will be able to describe both the locations and various interfaces used for the application of HVSP devices on communications circuits.
- Trainees will be able to describe Trainees will be able to describe the application of fiber optic links between communications and power company circuits to achieve high dielectric separations.the characteristics and operation of optical isolators, which are used to achieve extremely high dielectric separation between communications and power company circuits.
End of Course Instructions
Congratulations on completing the course! Your credits earned on completion of this program will be reported to RCEP.net within 30 days of completion. Once we report your completion at RCEP.net, you will receive a certificate of completion provided by RCEP on the email address you have provided at the time of enrollment. Please keep the certificate for your record. You may be required to submit this certificate to the state to record your PDH or present it in case if you are audited. If you have any questions or concerns please contact customer service at http://www.360trainingsupport.com
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