This article was posted 01/21/2008 and is most likely outdated.

Engineering Case Study - Mystery Current
 

 

Subject - Engineering Case Study - Mystery Current

January 21, 2008
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Engineering Case Study – Mystery Current

 

imageDefinitely a phenomenon you don’t run across everyday. Plastic cable TV splitter boxes were melting off the wall at many homes in a specific area of a town. The outside house cable TV grounds would also generate a “spark” each time an attempt was made to connect it to the outside house electrical utility ground. Numerous groups had been involved to attempt to solve this situation, but the problem still remained unsolved.

 

Power Line Systems Engineering, Inc. was called upon to help solve this mystery. Click here to read their very interesting case study.

 

 

 

 
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Comments

  • I worked for a cable company for two weeks when business was real slow and found 7 amps at 90VAC when I tried to hook the pole feed to the inside wiring. The TV was on one side and the pole current was on the other side of a Delta 240V xformer. There was a phone line(broken) laying on the xformer and draped on the cable hardline inducing voltage into the cable shield. The TV had a power supply short to the internal main board ground plane energizing the shield of the inside cable. As my Navy instructors said "Electricity is all FM, F*****G MAGIC"

    Kid Stevens
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