×
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

Dielectric Strenght in Composites

Dielectric Strenght in Composites

Dielectric Strenght in Composites

(OP)
thread237-236066: wedges out of rotor
I have a question; i need to determine the dielectric strenght of a composite material known as Scotchply 3M Unidirectional. Any ideas?

RE: Dielectric Strenght in Composites

NEMA Standard LI-1 (Industrial Laminated Thermosetting Products) gives specifications for many types of composite materials, including the NEMA G-11 mentioned in the other thread (G-11 and many more are defined in LI-1).

The specifications of the NEMA standard include mechanical properties and electrical properties, including dielectric constant (a material property) and dielectric strength (a little trickier to define, depends on geometry... there are standards).

Also, the Gund Company offers a catalogue of composite products for use in electrical machinery. Every item in their catalogue has dielectric constant and strength identified. I think any company that serves the specialty market of electric machinery would provide that info in its catalogue.

So, I guess my suggestions to ask your supplier for the information, or else ask if this material meets specifications for one of the materials identified in NEMA LI-1.  



 

=====================================
(2B)+(2B)'  ?

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