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Grounding wire options for cable internet line?

mpire

Well-known member
Joined
Nov 21, 2008
Messages
1,856
Location
Florida
So basically Comcast came out and destroyed half my yard burying a new wire, and before they were done they even managed to cut the very line that they were out to bury.

In one spot I have everything right together:

Power Meter
Phone lines
Landscape lighting
Sprinkler Controller
Sprinkler Valves
Exterior wiring for security sensors

So fast forward around a year of legal BS. I finally got them to pay out for the damages, and I am slowly working towards getting everything fixed.

I have run new RG6 Quad 3000 mhz coax cable to the front yard box for the neighborhood internet and to the Comcast box on the side of the lot. Apparently they are using **** cable, because this is twice as thick as the orange stuff Comcast is using.

Because all my electrical/mechanical stuff enters the house at the same spot, I have run grey pvc conduit for the 20 feet from the point it enters the house to a good distance away. This will allow me to replace the cable if necessary without digging in the danger zone where I will most definitely hit something important. Also, this will prevent the need of anyone else digging in the "danger zone."

So now its all enclosed in conduit all the way into the house, and nothing is exposed outside. I intend to keep it that way.

I do not have the grounding connection on the outside of the house as before. This was just a coupling that connected the jacket to the grounding wire coming off my electrical junction. I know its required for a disk or antenna on the exterior of your home, but not sure for buried wire.

23633d1388249862-whole-house-surge-protection-cable.gif


If I plug that cable directly into a surge bar with a cable connection, will that suffice to provide sufficient grounding?

Also, since all the cable is buried at all times, or encased in conduit, do I need to ground the coax wire at all? (I will still use the surge bar inside.)

Coax_Protector_Diagram.jpg


Anyway, I figured I would ask what you thought on the subject. I have 6 meg internet service provided for free by the neighborhood, and I am planning on hooking up with the Comcast 50 meg as well because I need the speed for working from home. I don't like Comcast, but its expensable and I don't have any other options at the moment. AT&T can't give me anything over 3 meg. The neighborhood service is spotty at times and that really is a problem when you can't make phone calls because your VPN is down.

7426492218


Also, the cable companies keep trying to mount boxes to the side of my house. This really wouldn't be a problem if they would just seal the holes or squirt some caulk/silicone into the hole before they put the screw into it. Instead it puts multiple holes into my paint and then water gets into the cracks and causes issues with water infiltration into my garage and is probably screwing up the paint.

The plan is to re-seal and paint everything when I am done with this whole mess.

So back on topic, what do you think about the grounding? Do I need an external ground, or do you think I will be good just grounding it in the junction box inside my garage?
 
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sberry

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Brethren, Michigan
Yes, you want the thing grounded outside the house to the electric system ground. If its inside would want it hooked to the main grounding electrode or bugged on to that wire.
 

wyliesdiesels

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Aug 14, 2012
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Location
Modesto, CA
Most defintely needs to be grounded , ESPECIALLY in a lightning prone area, such as Florida!

Imagine if a line down the street gets hit and it travels down your underground line to your house. Ka blewie goes whatever the lightning hits. Even with proper low resistant grounding, lightning can still wreck havic on equipment and wiring.

And dont forget utility operations can cause surges as well. EVERYTHING needs to be grounded!
 
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mpire

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Location
Florida
Well, now I have to find a ground strap that fits in a very small box.
 
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sberry

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Brethren, Michigan
I know I burnt up some stuff till I went over 880. I was taking hits thru the phone line which despite having shielded cable wasn't grounded on my end. Instead of taking out my suppression regular like now in last decade had took out phone co suppressor just once and didn't hurt my stuff. Worked like it was sposed to since I connect it to my super uffer.
 

jgorm

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Jan 5, 2015
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463
Location
San Diego
The splitters usually have grounding spots for screws. You get much better performance on the cable if you ground a bunch of the connections, and make sure to have caps on the unused splitter ports.
 
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mpire

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Nov 21, 2008
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Florida
I don't have any cables that are not connected to equipment, so that shouldn't be an issue.

I have a small conduit body going into the house. I have to figure out how I want to go about putting a ground in there.

I am debating cutting down the ground lug and fitting it inside the conduit.

5408806-23.jpg


Its only 3/4'" PVC Conduit.

I can probably get a ground lug in there, but its going to be a very tight fit.

21bbJon10WL.jpg


I can just run some thick copper wire down the conduit and then tap it into the ground wire underground.

What do you think?
 

wyliesdiesels

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Modesto, CA
As i said u can get very small ground lugs. Theyre sold at places like home depot. It shouldnt be an issue to fit it in an LB!
 
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mpire

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Location
Florida
Its hard enough to just get two RG6 wires in that box. Its only 3/4 inch conduit.
 
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