- Location
- New Jersey
- Occupation
- Journeyman Electrician
Is there anything required (other than the cable) in Chapter 8 for a shed that has ethernet run from a switch in the main house?
Ethernet Run to a Shed
- Thread starter infinity
- Start date
- Status
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Not sure what you mean. I would use pvc and, of course, underground cable.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I mean something like grounding like you need for a phone line to a separate structure.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I see. I don't think that is necessary, at least we never did it.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I've never done it but will be doing it soon so I was wondering if there was a device needed on the shed end.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I don't see a need. You are using just plain cat 6 I presume but I am unaware of a sheathed cable that you could bond to the grounding electrode conductor, if needed.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Yes, Cat 6 which is unshielded.
CAT 6 comes in UTP and ScTP. Depends on what you order.
Ethernet transceivers use isolation transformers at both ends with 1500 V of isolation and the signal is both purposely designed to be over 100 Hz and filtered below that to avoid any interference with noise from power lines. So grounding for noise is utterly pointless. Shielding increases the already considerable 30 dB SINR up another few dB from electrostatic fields but decreases it a few dB against magnetic fields such as those generated by motors and transformers.
Best practice is just use fiber but for homeowner situations paying someone to terminate it and the extra cost of fiber switches may not be worth it. These days mesh networks work so well though that it’s cheaper just to get some meshing WiFi radios and enjoy coverage both inside and out on the lawn. I prefer Ubiquity but that’s professional grade. TP Link is a close second. Google has proven themselves not trustworthy.
zbang
Senior Member
- Location
- Roughly 5346 miles from Earls Court
Pre-terminated fiber and media converters do the job. Depends on the distance needed- 100'? CAT6 or 5; 300'? I'd go fiber even if it's in-spec for copper (and the installation cost is going to well exceed the materials/electronics).
A quick search turned up https://www.fiber-mart.com/- 50M Singlemode 6 Fiber LC/FC/SC/ST Pulling eye Pre-terminated Fiber Cable US$120.00 which is a rather decent price; longer cables available.
They make what's effectively a "consumer" level, but in any case, you're playing for quality and support; they're kind of like the Apple of wireless networking
.Works for me all the time.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Correct, but in case I'm using UTP. Hardwired Ethernet is all that will be needed in the shed.
mikeames
Senior Member
- Location
- Gaithersburg MD
- Occupation
- Teacher - Master Electrician - 2017 NEC
My concern would be for 6A shielded if the shed had power. If there is no power in the shed then no issue with anything. If there is power then UTP is no issue. Adding a shield as in 6A would complicate it a bit, but I have read the shield should only be bonded at one patch/ switch.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
In audio, a shield connected at only one end is normally done so at the receiving end, so the entire group of equipment upstream doesn't become part of the signal
- Location
- Illinois
- Occupation
- retired electrician
That would be covered by Article 725 and nothing special unless the cable is exposed to lightning. That would trigger 725.41.
725 applies to data and phone cables on the load side of the first customer owned piece of equipment.
mikeames
Senior Member
- Location
- Gaithersburg MD
- Occupation
- Teacher - Master Electrician - 2017 NEC
That makes sense, and from what I read its the same reason. Keep the shield as a shield and not risk having any current flow on the shield between the two points.
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