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Grounded cable (TV)

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SavannahLion:
OK, so we were having problems. Cable guy comes out. Finds an exposed line. Fixes it. Problem solved. Short story.

During the process he finds that our house doesn't have a grounding block. The last guy who owned the house swapped it out for a splitter and tied the grounding strap to that. Cable guy says that's bad and reinstalled the proper grounding block.

I did notice the lack of the grounding block when I first moved in but, incorrectly, assumed the grounded splitter was suitable, and thus didn't bother fixing it. Whether installing the grounding block fixed our problem isn't clear, we had an exposed line that had been there for some time.

I understand the role the grounding block does (I think I do), I just don't quite understand why the splitter isn't a good substitute.

Attached photos are for clarity. They're not the exact brands that were used, just there for clarity.

ed12:
the grounding block
makes sure u are at zero
the splitter even though it has a lug has no way to prove u are at zero

ed

SavannahLion:

--- Quote from: ed12 on January 21, 2012, 09:14:14 pm ---the grounding block
makes sure u are at zero
the splitter even though it has a lug has no way to prove u are at zero

ed

--- End quote ---

Well I understand the purpose behind the grounding block. To provide a path and reference to ground.

 I just don't understand what's missing from the splitter. AFAIK, the outer shell of the splitter is tied to the outer sheath of the cable.

ed12:
outside housing have proven to become lose
ie no path

ed

SavannahLion:

--- Quote from: ed12 on January 22, 2012, 12:58:26 am ---outside housing have proven to become lose
ie no path

ed

--- End quote ---

Really? The ones I have seem pretty sturdy. But you're right, the block does seem much more sturdy in construction.

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