×
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

Class I Div 2 Locations

Class I Div 2 Locations

Class I Div 2 Locations

(OP)
Can a TEFC motor be used in a Class I Div 2 Location?

RE: Class I Div 2 Locations

CEC J18-164( in Canada)allows non explosion proof motors in Div 2 areas based on certain conditions. You need to evaluate whether it contains sparking, arcing, or heat producing components unless said components are connected to intrinsically safe or non-incendive ciruits.

If you are powering a space heater, check the heater for Div 2 suitability - or don't connect it.

Non-sparking fans are desirable.

RE: Class I Div 2 Locations

Per NEC 501-8; in Class I, Division 2 locations, the installation of open or non-explosion proof enclosed motors, such as squirrel cage induction motors without brushes, switching mechanisms, or similar arc-producing devises shall be permitted.

Note that were flammable gases or vapors with very low ignition temperatures may be present, high temperature motors like class H (180°C operating temp) should be avoided.
 

RE: Class I Div 2 Locations

Caution: NEC stipulates a minimum safety, only. If there is some more important or expensive process, the more secure enclosures are considered, e.g. XP motor type.

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