labeling for solar array

[doox00]

Doing a solar install, my understanding is everything needs labeling and plan order labels via pvlabels, so the conduit needs labeling as well or just the boxes/disconnects etc?

 

[45North]

Depends. Whose requirements are you trying to meet? And what would you like to see for yourself and other potential operators?

 

[doox00]

Depends. Whose requirements are you trying to meet? And what would you like to see for yourself and other potential operators?

trying to meet code requirements is all.

 

[cdsolar]

Here in my US state, my inspector required the metal conduit indoors to have labels every 10 feet "Solar PV DC Circuit" or "Caution DC Circuit" (I am DC coupled).

 

[chrisski]

Good luck finding every exact thing that needs to be labeled. I think you need to apprentice to find out for sure.

This place sells standard job packs with a battery add on option.

Solar System Labels

Designed to meet solar system labeling requirements. All of our PV labels are UL Certified and printed on premium outdoor rated vinyl with 7 year permanent adhesive.

fcdlabels.com

 

[42OhmsPA]

Pretty great selection of labels here.

https://www.altestore.com/store/enclosures-electrical-safety/nec-compliant-safety-labels-c1146/

 

[Recovering EE]

I bought a label set on Amazon:

https://www.amazon.com/gp/product/B0BQX6RLX4/ref=ppx_yo_dt_b_search_asin_title?psc=1

 

[jpwhit]

I bought my labels from pvlabels.com.

I probably spent over 100 hours studying the various NEC and Fire Codes to figure out exactly how things needed to be properly labeled. I also looked at about 10 professionally installed systems to verify my understanding. What I learned from studying the professionally installed systems, is they basically learned what the inspectors required in the jurisdictions where they do installs. Almost none of them were actually fully properly labeled to be 100% in compliance with all the codes.

It's also pretty important to know up front if you need to meet the 2017, 2020, or 2023 NEC solar codes. Because there are a lot of differences in the labeling requirements between them.

 

[cdsolar]

One thing my inspector also insisted upon was printed labels for voltage and amperage numbers. The set of labels I had had blank spots to fill in the numbers, which I did with an indelible marker. But he wanted actual labels for the numbers themselves.

Luckily I had a label maker at work. So I printed the proper numbers, put them over top of my indelibly marked numbers, sent the inspector the pictures, and he approved my system.

He said he was worried about fading, and that it was in the code. I am not sure where.

 

[pr3dat0r6sic6]

I'm curious I was planning on running my PV cable trough flexible metal conduit. Anyone have issues or tips for sticking the labels to this kind of conduit?

 

[Recovering EE]

I'm curious I was planning on running my PV cable trough flexible metal conduit. Anyone have issues or tips for sticking the labels to this kind of conduit?

One foot section of larger PVC pipe like a sleeve?

 

[wpns]

Sounds like you don't need to be "To Code", you need to be "To Inspector", so good to look at other systems that passed _your_ inspector, and talk to him about what he wants.

 

[jpwhit]

I'm curious I was planning on running my PV cable trough flexible metal conduit. Anyone have issues or tips for sticking the labels to this kind of conduit?

Labels adhere fine to flexible medal conduit. Just wipe it off with alcohol first.

 

[cdsolar]

In my barn, the mc cable that comes in from the outside ground mount is attached to the top of a rafter(s) that routes the mc cable over to and down into the tack room where my panel, battery, and inverter are mounted. The labels are attached both to the wall immediately as the mc cable enters and on the underside of the rafter(s) to which the cable is attached on top.

Thus if you look up you see the labels.

 

[Lavarock7]

I am guesing my Warning sign is not 'code' compliant. At least it tells the danger better than those OSHA signs.