Voltage Feedback Causes TV Signal Loss Due to Possible Grounding Problem


By Dave Rongey - Summary:

Why Installing and Maintaining the Bonded System Ground Is Very Important: Improper Grounding Can Cause High Levels of Feedback Voltage and possible electric shock. Important Warning about Ungrounded Outlets.


64VAC Neutral to Ground

Electrical Question: I am a Senior Field Technician with a local cable company. I was at a trouble call for intermittent signal on a modem today.

This electrical wiring question came from: Terry, in Texarkana, Texas.

Dave’s Reply:
Thanks for your electrical question Terry.

The Importance of a Bonded Ground System

Skill Level: Advanced – Licensed Electrical Contractor, Not Recommended for Homeowners.
Tools Required: Electricians Pouch of Hand Tools.
Estimated Time: Depends on the extent of the project, the grounding method to be used and available access to the project area.
Precaution: If the only ground source for the electrical system will be removed or modified then the electrical service should be shut off until the new ground source can be reconnected.
Notice: Making changes to the Electrical Service Panel and Electrical System should be done according to local and national electrical codes with a permit and be inspected.

Improper Grounding Can Cause High Levels of Feedback Voltage

The Mistake of Installing Ungrounded Outlets

Important Warning about Ungrounded Outlets

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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all projects.

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