×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

NEMA 3R

NEMA 3R

NEMA 3R

(OP)
Could anyone tell me how NEMA defines the NEMA 3R equipment? IEC has IP standards e.g. IP 52,54,56 and each IP standard has a technical definition. Does NEMA have similar definition for the NEMA 3R equipment? If so, then what is that definition?
Please help.
Thanks,

RE: NEMA 3R

Suggestion: Try
Reference:
1. NEMA Standard 250-1997  "Enclosures for Electrical Equipment (1000 Volts Maximum)"
Enclosure NEMA 3R is tested for
1. Rod entry in clause 5.2
2. Rain in clause 5.4
3. External icing in clause 5.6
4. Outdoor corrosion protection in clause 5.9
5. Gasket in clause 5.14
Available from: National Electrical Manufacturers Association, 1300 N 17th Street, Rosslyn, VA 22209, USA
http://nema.org/standards/

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources