Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
From your experience what would take longer? to bend a 4" 90° or use an elbow pre-manufactured? Thank you
4" RGS Elbow
- Thread starter Alwayslearningelec
- Start date
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Bending would take longer.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Which is likely to be necessary either way, at least on one leg. The factory elbow saves layout time, too.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Bending vs. Pre-bend and cutting and threading a nipple, not much of a difference. With 4" RMC the difference will come when you try to spin on a elbow on a full 10' length of conduit. Then you'll wish that you had a manufactured elbow with a nipple.
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Well I included bending in my estimate and it gave me 3 hours per 4 in bend.
Well that's a money maker in either case. However, if I was trying to trim a bid for competitive reasons I would be adjusting this down.
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Gotcha I just don't know if the guys in the field are going to use prefab elbows or bend. I have about 10,000 ft of RGS. It consists of about four to six four inch pipes in each run. I put in bending cuz I wasn't really sure what would determine if they would use prefab elbows. It's all overhead runs at about 25 ft. Wide open space being supported by trapeze racks.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
One determinant is whether factory elbow angles are suitable.
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
Anyone familiar with using PVC coated RGS? Can you bend that at 4" or you need to use factory elbows?
Whole different ball game, you will need the 3hrs per bend to compensate for other difficulties.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
The bend angles: 90 degrees, 60 degrees, 45 degrees, 30 degrees, 22.5 degrees, 15 degrees, etc.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
I would assume a combination of field bends and manufactured elbows.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
I did this with all factory bends, and only had to cut and thread straight sections. I actually worked from the top down, so the Eriksons at the bottom at the reducers were the only ones I needed.
Up top, I had to 45 out from the wall, put in a 5' stick on 45 deg., a 90 around a ledge, another 5' stick at 45 deg., a 45 to horizontal, then one 90 down into the top of a disconnect, the other a GEC to a plate.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
If you're interested, you can see the conduits wrap around the ledge and actually don't touch it.
(Please note that I did not run the 1-1/4" conduit; the cellular technician did.)
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(Please note that I did not run the 1-1/4" conduit; the cellular technician did.)
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Alwayslearningelec
Senior Member
- Location
- NJ
- Occupation
- Estimator
No it's about 3,000' pvc coated and 7,000' RGS non coated.
THey are actually seriously considering changing the RGS(non pvc coated) to RMC aluminum. Would aluminum be any easier than RGS?