Previous in Forum: What is the Importance of CT Polarity in HV Substations and How is it Decided?   Next in Forum: Is it Possible to Rewire a Steamer Unit From 240V 3 Phase to 240V 2 Phase?
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
4 comments
Rate Comments: Nested
lovekobelxm
Active Contributor

Join Date: Aug 2012
Posts: 22

Can IECEx Zone Rated Equipment Be Used in NEC Division Area?

09/21/2017 3:18 AM

Dears,

We are working for an Oil Platform refurbishment project.

The hazardous area of the platform was classified by NEC Article 500, with Class and Division system. While purchasing the electrical and instrument equipment, some of the European vendors say they cannot have the equipment NEC500 certified, they only have ATEX equipment according to IEC Class and Zone system. I know that the intention to have NEC article 501 and 505, is try to align those two hazardous area classification system. It is also saying that in Article 501, that NEC Zone equipment can be granted to use in Division system under such provisions.

But my question is,

Are the NEC Class I Zone 0,1,2 system same with IEC Zone 0,1,2 system? How an IECEx Zone equipment can get approved to use in Class/Division area, what kind of procedures must be done?

Appreciated for your kindest help!
Register to Reply
Pathfinder Tags: nec
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Can an IECEx Zone rated equipment used in NEC Division area

09/21/2017 4:20 AM

<...Are the NEC Class I Zone 0,1,2 system same with IEC Zone 0,1,2 system?...> No, they aren't, exactly. If buying in Europe, ATEX is applicable, as it is an Europe-wide directive.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
lovekobelxm
Active Contributor

Join Date: Aug 2012
Posts: 22
#2
In reply to #1

Re: Can an IECEx Zone rated equipment used in NEC Division area

09/21/2017 5:00 AM

Hi, thanks for the answering!

Do you know what's the exact differences between these two "zone system"? and How an IECEx Zone equipment can get approved to use in NEC Class/Division area?
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3
In reply to #2

Re: Can an IECEx Zone rated equipment used in NEC Division area

09/21/2017 8:16 AM

The question <...How an IECEx Zone equipment can get approved to use in Class/Division area, what kind of procedures must be done?...> is best answered by contacting the equipment suppliers directly. Do use the telephone.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
JRaef
Guru
United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
Posts: 4665
Good Answers: 804
#4

Re: Can an IECEx Zone Rated Equipment Used in NEC Division Area

09/21/2017 1:20 PM

For the most part here, the equipment will be required to have some sort of "3rd party listing" for the hazardous environment. We don't allow "self certification / type testing" alone. So there are Classes and Divisions in our system as well, generally administered through the National Electric Code and equipment is listed by UL, FM (Factory Mutual), CSA or other acceptable "NRTL"s (Nationally Recognized Testing Labs), a list of which can be read here:

https://www.osha.gov/dts/otpca/nrtl/nrtllist.html

Note that some of the acceptable agencies are EU based, such as TUV, but you would still need for them to list it to OUR standards.

__________________
 ** All I every really wanted to be, was... A LUMBERJACK!.**
Register to Reply
Register to Reply
Have a Different Question?
4 comments
Copy to Clipboard

Users who posted comments:

JRaef (1); lovekobelxm (1); PWSlack (2)

Previous in Forum: What is the Importance of CT Polarity in HV Substations and How is it Decided?   Next in Forum: Is it Possible to Rewire a Steamer Unit From 240V 3 Phase to 240V 2 Phase?

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (86 right now)
Show Members
Advertisement