Can 4-1" Innerducts fit in a 4" Conduit? - CR4 Discussion Thread
Jul 2, 2007 · 4-1" innerducts or 3 - 1 1/4" innerducts are the norm. If you are working on an underground installation, some companies like Carlon makes 4" PVC ducts with the innerducts already installed like the configurations listed above.
Conduit Runs and Pull Boxes - CR4 Discussion Thread
Feb 24, 2009 · I know he original post concerned the length of 3/4' conduit between pull boxes .I am from the Caribbean, we do have a local electrical code which specifies a maximum of three 90 degree bends and 120 feet of conduit between pull boxes. But the idea of using a vacuum cleaner and a plastic bag to pull in a pull-line is a very unique idea.
Electrical Conduit Through Concrete Floor - CR4 Discussion Thread
Sep 21, 2009 · I've set four 1" sched, 40 PVC electrical conduit in place to handle the future wiring, anticipated to be about 6000 W, 120 V. The conduit extends about 18" above the concrete floor. Is this a good plan. I was considering using a 3" PVC drain sleeve, but was worried that it would violate the building code, so I chose 4 x 1" PVC conduit.
Conduit Pipes and Cable Glands - CR4 Discussion Thread
May 5, 2008 · There is some discussion about replacing the Pg Steel Conduit Thread per DIN 40430 with a 60° version as specified in BS EN 50262 CABLE GLANDS FOR ELECTRICAL INSTALLATIONS and/or DIN EN 50262 METRIC CABLE GLANDS FOR ELECTRICAL INSTALLATIONS. Standard Pg Steel Conduit Thread Sizes per DIN 40430 STEEL CONDUIT THREAD; DIMENSIONS
Conduit Is Getting Hot - CR4 Discussion Thread - GlobalSpec
Nov 26, 2007 · I have ran across a system that was installed in one of our facilities where the conduit is getting hot. The system is 3 Phase motor 300 hp and is feed with 3 - 500 Kcmil copper wires in 3 separate 1 1/4" Rigid Metallic Conduits.
Same Phase Wires in Single Conduits - CR4 Discussion Thread
Feb 16, 2009 · On single phase loads, it is OK to tun one phase per conduit as long as the neutral wire is included in the same conduit. Also make sure that the load is supplied by the same neutral wire as the one running in the phase conduit. If you use the neutral from another conduit, you will have circulating current loops and EM problems.
G.I. Conduit for Fire Alarm System Instead of uPVC
Aug 18, 2011 · Is it a mandatory to used the G.I. Conduit on all Fire Alarm System Lay -out on that are embedded on Slab instead of uPVC Conduit? Do we have a reference on this as per National Electrical Code latest Ed.?BSN (British Standard ) latest Ed. ? NFPA latest Ed.? Just want to be clarified.. Thank You..-ODY JIAN - Phnom Penh
Can I Run 0-10V Control Wires With 277V in Same Conduit?
Nov 12, 2009 · If you absolutely must run the control signals in the same conduit as the power then 10 vdc is definitely the wrong way to go for the reasons JRaef explains. If it were a short run then running a 4-20 mA signal through shielded twisted pair might work but 400' is …
Programmable 3 or 4 Way Valve Actuator - CR4 Discussion Thread …
Sep 17, 2010 · In this respect, a 2-way valve is open or closed or modulating between. A 3-way valve can either divert a common port to either or both of two outlets, or accept input from either or both of two ports and discharge to a common outlet port. A 4-way valve with ports A, B, C, and D (arranged CW or CCW) connects A to B and C to D, or A to D and B to C.
MMS Conduit Type? - CR4 Discussion Thread - GlobalSpec
May 30, 2007 · Premium Rigid PVC Pipes are made in Light (LMS), Medium (MMS) & Heavy (HMS) Technical Stress for different types of application conforming to IS 9537part-3. MMS is Medium Mechanical Stress. or it could be: Minerals Management Service (former U.S. Geological Survey) Michigan Mars Society . Mail management system. Master of Medical Science