Problems ********
**** ********** **** ******* run ****** ******* *** joists *** **** ******** the ******** ********** **** (NEC). ******* *** ** the *** ******** **** ****** must ** "******* ** hardware ********* ******, *******, cable ****, *******, ** similar ******** ******** *** installed ** ** *** to ****** *** *****", and *** ****** *** loosely ******* *** ***** bar ****** [***.** *** 800.11].
*** **** ****** ****** of ******** ****** ** commercial ********* ** **** J *****, **** ** CADDY's *********** ***** * *****, ********* ****** *** about $* * *****. However, ***** ******* * scissor **** ** ********* with ** **** ********, which *** **** ** ** $150 * *** **** rented.
Magdaddy ******* ********
******* ** ****, ******** first ***** ********* * line ** ********* *** the ********** *** ********* industries. ** ****, **** began ******** ***** ********** products, ** ***** ******** on *** ******* *** datacom **********. ********, **** have ***** *********** ********** ** ******** and ************ ***** ***** as ****.
******* ********
******** ****** * **** of ***** ********** ******** that ****** *** **** earth *******. ** ******** had *** *********** ** examine ****** *****,****** *****,***** *******, ****** **** ******. ******** ****** ***** products ** * ******* of ***** *** ******** strengths.
*** ******* *** **** of *********. *** ******* ******* **** magnets ** ******* ******** ******** to **** ******. *******, ** ****** *** ******** of *** ********* ******** bridle **** ** *** East *** ***** **** they **** ***** ******, certainly ****** ****** ** withstand *** ****** ** a ****** ** ******.
********'* * ***** *** available *** ~$* * piece ** ****** **** electrical ************.
**** **** **** *********** *** ** ********* to * *******'* **** [link ** ****** *********], allowing ** ********* ** mount * * **** or ****** **** **** the ******.
** ***** **** **** ceiling, ***** ******* * scissor **** ** ********** yet *********** **** ** ** supported, ******** ****** ***** with * **** ****** and * *******'* **** will ** ************* ****** and ******* ** ***** than ********** ***** *****.
********'* ********* ***** ***** *** the ******* **** ********* in **** **** ***** and **** **** ********:
********
** ******** **% - 50% ****** ******** ** facilities **** **** *** steel ****** ********* ** ceiling ******:
- ** ********* **** **' ceilings, * *** ****** installation **** *** ************* run * ******* ** ***** cables ~**% ****** ***** ******** J *****, *** ***** adapter ** * *******'* pole, *** * ****** than **** *** ******* a ******* ****.
- ** ********* **** **' ceilings, ** ******** **** a ****** ********** *** run * ******* ** CAT5e ****** ~**% ******.
**** ********** **** *********** savings ** ***** ***** and ** ******* **** rental ** ********** ********* with **' ********, ******** the ***** ******* *** not ** ***** ** in ********* **** **' ceilings.
Drawbacks / *********
*** ******* **** ** be ***** ****** ** be **** ** ******* the ****** ** ******. One ********* ******* ** placing *** **** ** *** wrong ****, ********** **** using * *******'* ****. A * **** ** the ***** **** *** very **** ** ******* permanently ** * ******* lift ** *** *******. When ** ****** ***** at ***, ** ***** not *** *** ****** ring *** *** * beam ** ******* **** no ****** *** **** we ******. ******** **** that *** ******* **** to ** ****, *** pulled ***. **** ********* installers *** * ****** mallet ** ********** ***** products ** *********.
Vote - ****
Comments (35)
Eddie Perry
You know When I was apprenticing to be an electrician many years ago. I got to run a bunch of conduit across a metal building ceiling. all day every day for about 2 weeks riding around on a 40ft scissor lift just to mount conduit.
What was I running conduit for you ask? well this metal building was being outfitted for 4 additional bays for a diesel mechanic shop to work on big rigs.
Blah blah blah what my point?
well about 2 days before I was finished running conduit there was a lightning storm and lighting had hit the building and knocked out some lights and other stuff.
But the interesting thing was the head diesel mechanic had these really neat "magnetic" socket holders that he had magnetically hanging on the building steel near his work area. Now I know for a fact that the building steel was grounded, but for some reason the magnets would no longer stick to the Building steel anymore or the other sockets anymore.
Would be interesting to see what would happen, but then again the NEC states unless it has been changed in the past 6 years since I cracked it open, that cabling and conduit must be "mechanically" and/or "fastened". I doubt these will get the nod for use.
Neat though.....
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Undisclosed #1
Using a painters pole?
These magnets appear to have 80lbs holding force.
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Scott Bradford
I've fooled around with magnets like this in the past. Their direct pull strength is good, but you can 'slide' them sideways if you pull hard enough. I could see (a very rare situation) where a cable might get caught in a ring as you were pulling it and the magnet could slide and (in theory) slide all the way off the beam. Highly unlikely, but not impossible. I still think it's a awesome, super simple idea.
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Undisclosed #1
Can strong, but static (non-varying), magnetic fields affect ethernet transmission?
I don't think so, but a TDR test would be interesting...
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Jeffrey Kintzler
[Poster is from Magdaddy]
Eddie's comment is only true if the lightning strike hits the I beam directly. And since we have been in business for a little over six years, we have never had this complaint. What we do have is a product that will save considerable time in labor.
We all know it is hard it is to put more in the material costs when doing an estimate. It's black and white right in front of you. What is also there is this massive gray area that is LABOR. We sell in packs or cartons of 10 so it's not a huge expenditure to try them. We have many happy customers who are amazed at the labor savings they receive.
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Jeffrey Kintzler
As mentioned previously most of our magnetic fasteners are UL listed and Plenum rated.
Someone mentioned concerns about temperature and what happens. Neodymium magnets have different ratings so I'm not saying they were wrong. They are incorrect when it comes to ours. Our operation temperatures are at -40 degrees to 176 degrees.
Now, they do not lose all of the pull strength at those temps they will gradually lose more as the temps rise or fall. The melting point of our magnets is 560 degrees.
As with any business methods change, and in ours they change almost daily. We feel like our product is one you can use with confidence. We back all of our products 100%.
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Undisclosed Integrator #2
I saw these at ISC East and thought what my AHJ would say. Got back home and asked local code enforcement if we could use them and I was told not no but hell no!
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Jeffrey Kintzler
We have heard that in strong union areas. It is a small area but Manhattan is one of them. Strong union I assume. Not sure.
It makes no sense to impede progress. Did you show him a sample? No should always be backed up with reason. Did they tell you why? If there is a reason perhaps we can overcome the resistance to using our products. Did you tell them they were UL listed and Plenum rated? Why would 99% of the country use and approve Mag Daddy for installations. No from one individual is not how the rest of the industry views our products. If he wants a sample to test I would be happy to furnish it to him.
Give me an address to send to.
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Moe Levine
I used these magdaddy bridle rings recently on a job, it was great for initially running the wires in a huge warehouse, but I didn't feel comfortable leaving it without something more permanent so I installed clamps on the iBeams. But they're great for initially running the wires. They're also very expensive when comparing to iBeam clamps.
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Scott Bradford
Ironically enough, our cable rep just brought by a demo of these items. They have about 20 skus of various different products.
Their key item, the wire loop, is VERY strong. I even tried rolling it to the side as I mentioned in a previous post and found that extremely difficult to do. So, that's a good thing. Neat idea, I can see it as a time saver in the right circumstance
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Ari Erenthal
Update: MagDaddy J hooks are noW UL listed as supporting devices under ANSI/UL 1565.
For more on the role of the AHJ, see our AHJ / Authority Having Jurisdiction Tutorial.
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