It is currently Fri Sep 18, 2020 10:10 pm

Post new topic Reply to topic
Author Message
ekstra   ara
 Post subject: Medium Voltage "exposed"
PostPosted: Mon Jan 30, 2012 7:57 pm 
Plasma Level
User avatar

Joined: Tue Oct 26, 2010 9:08 am
Posts: 2174
Location: North Carolina
The surface of insulation in medium voltage wiring is not necessarily actually "ground" or near ground. This is even more so with unshielded conductors for CPT leads in enclosures and the like, never mind shielded conductors.

So going strictly by 70E standards, medium voltage conductors would be considered "insulated". However this fails the intent as obviously the idea is that the surface of the insulation is under 50 volts.

So with medium voltage conductors, a shock hazard can be present even if insulated.

Has anyone else considered how to handle this? Is there something in a standard somewhere to address it?

 Profile Send private message  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 7 hours

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
© 2019 Arcflash Forum / Brainfiller, Inc. | P.O. Box 12024 | Scottsdale, AZ 85267 USA | 800-874-8883