Running feeders in suspended Ceiling. - Page 2 - Electrician Talk - Professional Electrical Contractors Forum
CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Electrical Forum > General Electrical Discussion


Like Tree17Likes
Reply
 
Thread Tools Display Modes
Old 09-27-2016, 12:26 AM   #21
Modérateur
 
frenchelectrican's Avatar
 
Join Date: Mar 2007
Location: Philippines
Posts: 8,635
Rewards Points: 21,782
Default

Most case I useally run EMT if you can get around it and if you have unblocked view you can run it straight shot.,,

but in real life it never be easy because ya never know what you snag into .,,

the last one I have to run 3 inch EMT in the ceiling from electrical room to the distubation panel and few spots I did actually smack right into a dense location of ductworks have to wiggle it little then got it thru and yes I did talk to my tin knocker contractor so he did help me a bit so it was a bessing in desgude due he have to fix the HVAC at the same time.

but yes I did use the large MC before and I am not too crazy with it if you are not prepare for it.
Majewski likes this.
__________________
Bleu est beau.
frenchelectrican is offline   Reply With Quote
The Following User Says Thank You to frenchelectrican For This Useful Post:
glen1971 (09-27-2016)
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free!

ElectricianTalk.com - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that ElectricianTalk.com is a great community to join. Best of all it's totally free!

Join ElectricianTalk.com - Click Here JOIN FOR FREE


Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ElectricianTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Sponsored Links
Advertisement
 
Old 09-27-2016, 08:53 AM   #22
Senior Member
 
butcher733's Avatar
 
Join Date: Aug 2012
Location: southern illinois
Posts: 1,398
Rewards Points: 798
Default

Quote:
Originally Posted by telsa View Post
The universal trick is to find a 'horizon' -- an altitude above the grid -- that permits a straight shot.

All-thread drops and Sammy Super Screw solves all.





Take your pick of J-hooks or Minerallac straps.

Earlier this year my foreman started off my next job with the statement "I really wish we would have ran this Underground". I had to run two and a half inch EMT in a suspended ceiling through four rooms and across the hallway. I spent about an hour walking through everything with this story stick making marks for all the obstructions and ended up finding a space of about 5 inches that would let me get a straight shot through everything.

I ended up getting it done with three Factory ninety's a junction box, and one offset. Suspended ceilings and large pipe sucks.
Majewski likes this.
__________________
I'll take therapists for $400.
butcher733 is offline   Reply With Quote
Old 09-27-2016, 09:21 AM   #23
Senior Member
 
Join Date: May 2015
Location: Sacramento, California
Posts: 14,057
Rewards Points: 26,360
Default

Quote:
Originally Posted by butcher733 View Post
Earlier this year my foreman started off my next job with the statement "I really wish we would have ran this Underground". I had to run two and a half inch EMT in a suspended ceiling through four rooms and across the hallway. I spent about an hour walking through everything with this story stick making marks for all the obstructions and ended up finding a space of about 5 inches that would let me get a straight shot through everything.

I ended up getting it done with three Factory ninety's a junction box, and one offset. Suspended ceilings and large pipe sucks.
It CAN get worse.

I had to run 3" EMT over a hard rocked ceiling -- with irritating insulation enough to give you silicosis in one-hour -- that required the "slinky-technique."

This translates as cutting down 10-foot sticks so as to add additional die-cast set-screw couplings rather willy-nilly. At each coupling, you gain a few degrees of freedom -- so as to snake the run through the framing. Naturally, an excessive number of two-hole straps are required.

This effort was delightfully followed up by tugging in 4x600 kCMIL in copper. ( Three quarter turns plus the slinky. )

&&&&

I once spent EIGHT-HOURS to dope out a straight shot for a 2 1/2" EMT run.

I had to hit a thermal-exhaust port only 6"x6" that the emperor didn't protect. It was a very close call.

I'd run out of quarter-turns for that feeder, so I had to set a 18"x18" 3R pull can right atop the exhaust port.

Just feeding that hole long copper required a five-man crew.

At least I didn't have to pay their power bill.
Majewski likes this.

Last edited by telsa; 09-27-2016 at 09:25 AM.
telsa is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-27-2016, 09:26 AM   #24
Senior Member
 
Join Date: May 2015
Location: Sacramento, California
Posts: 14,057
Rewards Points: 26,360
Default

Quote:
Originally Posted by MechanicalDVR View Post
Not fun to run!
I read somewhere that this cable was invented for the Canadian mining industry.

Anyone: Is that correct ?
telsa is offline   Reply With Quote
Old 09-27-2016, 08:35 PM   #25
Old Grumpy Bastard
 
MechanicalDVR's Avatar
 
Join Date: Dec 2007
Location: "Old Dominion"
Posts: 59,852
Rewards Points: 2,116
Default

Quote:
Originally Posted by telsa View Post
I read somewhere that this cable was invented for the Canadian mining industry.

Anyone: Is that correct ?
I've read that in more than one blog.
__________________
I'm as Christian as possible in the times we live in.

Always just a stallion in a china shop
MechanicalDVR is offline   Reply With Quote
Old 09-27-2016, 10:56 PM   #26
Senior Member
 
cabletie's Avatar
 
Join Date: Feb 2011
Location: N.J.
Posts: 1,698
Rewards Points: 1,274
Default

Not sure about that cable, but feeder size MI cable was invented by Satin himself. After running four parallel sets of MI through a hospital ceiling 2-1/2" EMT seems like 14-2 Romex.

Well I guess if it doesn't kill you it will make you stronger. Next time I would rather pound my head against a block wall for 160 hours.
HackWork likes this.
cabletie is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Twist lock receptacle in suspended ceiling Jamato General Electrical Discussion 31 07-31-2016 01:25 PM
Powerful ceiling fans ? tomatina General Electrical Discussion 12 05-20-2016 12:27 AM
Running MC ceiling Arikculwell Residential Electrical Forum 10 05-15-2016 06:41 PM
Basement drop ceiling SparkyinIL General Electrical Discussion 22 02-17-2016 10:09 PM
Difference Between Single and Dual Capacitor Ceiling Fan swimmer Residential Electrical Forum 6 01-08-2016 11:42 AM


All times are GMT -4. The time now is 04:15 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | HVACSite.com | PaintTalk.com | PlumbingZone.com | RoofingTalk.com