Electrical

Electrical Questions? Ask an Electrician Online.

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Can I use romex to wire a 50' x 100' metal warehouse or do I…

Can I use romex to...
Can I use romex to wire a 50' x 100' metal warehouse or do I need conduit? The romex would be at laid in a structural "C-channel which forms a nice tray for wiring where the roof meets the walls and extended to lighting locations by attachment to other structural members. Where wiring needs to come down to working level it would be placed in a conduit.The property is in San Bernardino County, California.
Show More
Show Less
Ask Your Own Electrical Question
Answered in 6 minutes by:
3/9/2018
Kevin
Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 4,419
Experience: 31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License
Verified

Hello and welcome to Just Answer. My name is ***** ***** I will be happy to assist you with your electrical question.

Please be patient as it takes time to type and provide links. Also note that the website may be sending you a telephone offer, the offer is not originating from me.

1) NM Romex cables are typically limited to single family dwellings. Most local electrical codes will not allow NM Romex cables installed in a commercial environment. NM Romex cables are not allowed in damp locations.

EMT metal conduit with individual conductors is the most common wiring method for commercial and industrial applications.

2) Keep in mind that local electrical codes will always take precedence above the National Electrical Code. I recommend that you contact your local electrical inspector as they will have the final say so.

Ask Your Own Electrical Question
Customer reply replied 4 months ago
Is Sched 40 PVC conduit acceptable in lieu of emt? It's easier to work with.

1) Grey electrical Sch. 40 conduit is code compliant with the NEC, but may not be code compliant with local electrical codes. EMT metal conduit is the most recognized method as a commercial raceway. You will need to contact the local electrical inspector to confirm if PVC conduit will be allowed.

Ask Your Own Electrical Question
Customer reply replied 4 months ago
This is a building on private property, not open to the public. Does that change the commercial nature of the building?

1) Possibly, but that is up to the local electrical inspector to confirm and approve.

2) Most local electrical inspectors frown upon the use of NM Romex cables unless they are installed behind drywall or paneling. If not protected, the odds of possible damage increase.

Yes, NM Romex cables can be protected inside EMT conduit from the areas directly below the ceiling down to the floor area. Once again, the use of NM Romex cables will reside with the approval of local codes.

3) I can tell you that EMT metal conduit will always be approved by local codes.

Ask Your Own Electrical Question

If you have any additional questions, just let me know and I’ll be glad to answer them for you.

Otherwise, don’t forget to rate me before you log Off.

Thanks.................Kevin:)

Kevin
Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 4,419
Experience: 31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License
Verified
Kevin and 87 other Electrical Specialists are ready to help you
Ask your own question now

Thank you for the positive service rating............much appreciated!

If you have any other questions, just let me know.

Take care and have a great weekend............Thanks again............Kevin:)

Ask Your Own Electrical Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an electricianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Kevin Your Own Question
Kevin
Kevin
Kevin, Licensed Electrical Contractor
Category: Electrical
Satisfied Customers: 4,419
4,419 Satisfied Customers
Experience: 31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License

Kevin is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Mike

Mike

Master Electrician

1,426 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Jason

Service Technician

3,958 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Mike G.

Master Electrician

8,196 satisfied customers

Proven Professional 49 years Experience

Kevin

Kevin

Licensed Electrical Contractor

4,419 satisfied customers

31 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Technician License

AssuredElectrical

AssuredElectrical

Master Electrician

3,264 satisfied customers

Contractor-42+ Years in the ElectricalTrade

electrifier

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Rich

Master Electrician

1,117 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

< Previous | Next >

Related Electrical Questions
I need to run about 75 feet of wire from my breaker box to a
Hello. I need to run about 75 feet of wire from my breaker box to a disconnect box for my ac. All I have is 75 feet of 12/2 type nm-b romex wire and 80 feet of conduit. Can i run it outside … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
4,419 satisfied customers
What type of wire is permitted to run on the top level of a
What type of wire is permitted to run on the top level of a residential single family structure? Is romex allowed or does it need to be in metal conduit? Sub panel will be above the garage on the top … read more
George Smith
George Smith
Vocational, Technical or Trade School
445 satisfied customers
Name is Ed. I need to know how far a meter can be from the
Customer: Hello, name is***** need to know how far a meter can be from the weatherhead --or the point where the customer's conduit and the electric company's service drop meets-- how far can this run … read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
This is a real situation. A light fixture recently causes a
This is a real situation. A light fixture recently causes a shock to a visitor of an owner at her home when the visitor touched part of a light fixture. What the current wording or language of the pre… read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
I am trying to replace an L10-30 (3 pole, 3 wire) receptacle
I am trying to replace an L10-30 (3 pole, 3 wire) receptacle with an L14-30 (4 pole, 4 wire grounding) receptacle. The receptacle is not very far from the panel (which is outside). Also, the 4 wire co… read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
4,419 satisfied customers
rich my question is can I install a ground terminal block
rich my question is can I install a ground terminal block in my 6x6x4 box bring in a #10 ground and connect 6-#12 & 3-#14 ground wires to it. thanks!!… read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
I have surface mount electrical panels that Im running 12/2
I have surface mount electrical panel's that I'm running 12/2 and 12/3 NM cables into. I want to sleeve them in PVC conduit to physically protect the wires's. If I have a length about 33" how many NM'… read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
Hello, I am running 12/2 cable in a back attic area. Im replacing
Hello, I am running 12/2 cable in a back attic area. I'm replacing 15 amp metal clad non grounded wire. On the corner 2x3 stud there is no hole. If I just staple the cable to the stud would that meet … read more
Kevin
Kevin
Licensed Electrical Contractor
Diploma
4,419 satisfied customers
I have an unfinished basement and plan on running wiring to
I have an unfinished basement and plan on running wiring to a room in the front of the house by running the wires from the load box to the room by mounting a board to the concrete wall and running Rom… read more
kruzrken
kruzrken
Partner
Bachelor\u0027s Degree
217 satisfied customers
is side panel access to a surface mounted 200a panel nec compliant.
is side panel access to a surface mounted 200a panel nec compliant. Top of panel is full. Wiring will be exposed and not sure if that is considered "subject to physical damage"… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,196 satisfied customers
Hello, I wonder if someone can help me here. I have built
Hello, I wonder if someone can help me here. I have built up into the attic above my garage. It is now all little room for boarding cats. I checked with the city and there's no issue, provided I don't… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,196 satisfied customers
Building a log home. Hanging a chandelier off of the main log
Building a log home. Hanging a chandelier off of the main log ridgebeam. I have a 3/4" gap above the log to the ceiling that I can run wire. Once it leaves the ridge, I will have to convert to wiremol… read more
TAKPOWER
TAKPOWER
Non Restricted Licensed Electrician
High School or GED
131 satisfied customers
If Rebars used in residential footer can rebar be used ahead
If rebar is used in residential footer does the rebar have to be used ahead of the ground rods? We were under the interpretation that if rebar is used in footer it must be used as the initial ground r… read more
AssuredElectrical
AssuredElectrical
Master Electrician
High School or GED
3,264 satisfied customers
I have a 12 X 24 addition on a concrete slab that has an
I have a 12' X 24' addition on a concrete slab that has an 8' X 9' physical therapy pool in one end. The pool installer grounded the pool and it passed inspection. The electrition tied rebar and scree… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
8,196 satisfied customers
I have a basement wall stipped out with 1 x 3 furring strips,
I have a basement wall stipped out with 1 x 3 furring strips, I am adding outlets to the wall. What is the rule as far as securing the wire? can it be on the furring strip or right to the concrete blo… read more
Paul
Paul
Owner
Vocational, Technical or Trade Scho
1 satisfied customers
is there a code that requires a distance between high voltage
is there a code that requires a distance between high voltage and low voltage, when running in conduit?… read more
Brian
Brian
Master Electrician / Contractor
Vocational, Technical or Trade Scho
40 satisfied customers
Indiana electrical code. Can uf romex wire be installed in
Indiana electrical code. Can uf romex wire be installed in pvc conduit underground? Can this asnwer be validated with the code location. Thank you, Tony DePew… read more
Joseph
Joseph
743 satisfied customers
I am currently repairing a community in ground pool. I have
I am currently repairing a community in ground pool. I have been told that there are code changes pending on grounding.… read more
Joseph
Joseph
743 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x