tyraps as emt support

[mattt]

I have an electrician doing some work in on of my buildings he ran the 1" emt on the bar joists and than used a tyrap to secure it
I dont think this is per code do you ?

 

[iwire]

I have done the same.

The truss is supporting the conduit, the tie wrap is securing it.

If the inspector feels it is securely fasted by a tie wrap then IMO it meets the NEC.

In my opinion I could use a tie wrap that is much stronger then say a bang on caddy clip.

 

[petersonra]

I have an electrician doing some work in on of my buildings he ran the 1" emt on the bar joists and than used a tyrap to secure it
I dont think this is per code do you ?

why wouldn't it be? it is only required to be supported and secured. nothing in the code says how that is to be done. Tie wraps are a very secure way of securing things.

 

[crossman]

See 358.30(B)

The tie wraps are not even needed. The EMT can be simply laying on the bar joist... except the EMT has to be securely fastened within 3 feet of boxes.

 

[JacksonburgFarmer]

Yeeeeeeeeaaaaaaaaaaaaahhhhhhhhhhhh...........

Yeeeeeeeeaaaaaaaaaaaaahhhhhhhhhhhh...........

I agree, with you. I would not be to impressed myself. While it may satisfy "securly fastened" What about "Workman like installation". I would not revere as a high quality installation. Bar joists = beam clamps & minneralacs, IMHO!!!!!!

 

[iwire]

What about "Workman like installation".

It is right next to you get what you pay for.

When the customer has beaten the price to the basement then they do not deserve more then the least.

(I don't know that is the case for the OP)

 

[roger]

What about "Workman like installation".

"Workman like" is only in the eye of the beholder, there is no absolute definition of what "workman like" is.

Roger

 

[petersonra]

"Workman like" is only in the eye of the beholder, there is no absolute definition of what "workman like" is.

Roger

I like the way tie wraps look versus clamps.

 

[bbaumer]

The only problem I see is that tye wraps can get brittle over a long period of time in certain environments. Probably will never have a problem even though it looks cheap.

 

[peter d]

The only problem I see is that tye wraps can get brittle over a long period of time in certain environments. Probably will never have a problem even though it looks cheap.

Just use stainless steel ty raps.

I'm sure most of us have demoed commercial work at some point where all the MC's have been tyrapped (yes, I know, not you guys in Chicagoland :roll: ) They do get brittle but even ones that are 20+ years old are still holding the MC up like the day they were installed.

 

[kjw444]

I would just use bailing wire because if the tie wraps are exposed to the sun in anyway and are not sunlight resistant, I give them five years before they are brittle and worthless

 

[iwire]

Not much sun exposure in steel bar joists.

 

[kjw444]

Not much sun exposure in steel bar joists.

Well without knowing the building there maybe skylights in the vicinity.

 

[nakulak]

fwiw, they do make uv resistant zip ties

 

[cschmid]

I believe we need to look at what the tyrap is list for and what the amount of weight the tyrap can handle..I personally would not use that method even if the customer tried to beet the price into the ground..I believe the tyrap is only rated for 15lbs but I can not be sure as I am not going to research it right now..

 

[cschmid]

okay I looked it up and here is the link

http://www.idealindustries.com/products/wire_management/cable_ties/standard_cable_ties.jsp

I was wrong it is 18 lbs..

 

[nakulak]

I believe we need to look at what the tyrap is list for and what the amount of weight the tyrap can handle..I personally would not use that method even if the customer tried to beet the price into the ground..I believe the tyrap is only rated for 15lbs but I can not be sure as I am not going to research it right now..

if the bar joist is supporting the weight, what difference would that make ?

 

[cschmid]

Not much sun exposure in steel bar joists.

no but the excessive heat can cause damage as well..

 

[cschmid]

if the bar joist is supporting the weight, what difference would that make ?

I am assuming they are supporting the conduit off the round portion of the bar joist and not the angle portion. so as to have the weight of the conduit resting in the tyrap..

but we all know what that assumption does to a person..:grin:

 

[iwire]

Well without knowing the building there maybe skylights in the vicinity.

:roll:

Yes and the roof might blow off in the wind as well.

We can go round and round on this topic but it is not a code violation to use cable ties as described if the inspector feels the EMT is secured.

As far as the strength of tie wraps that can be from a few pounds to hundreds of pounds, it all depends on what you buy.