PVC conduit is better then metal as it won't corrod under ground and theres less of a chance of electrical shortages.
Yes, that can be done. Just get the correct connector to use when connecting the PVC to the metal box.
PVC is cheaper but is used differently. PVC is usually baried in ground and emt usually runs exposed. You can use PVC exposed if it is schedule 80 gray PVC electrical conduit. Schedule 40 is for under ground
can you used pvc pipes in a commerical business kitchen
Yes, if it is rigid PVC conduit approved for electrical installations. Don't use PVC water pipe as it will be rejected if inspected.
No. The fittings are not water-tight and the pipe will corrode. Use copper, PVC, CPVC, or PEX.Most plastics are toxicUse copper type K, L or copper TP Red Brass, Galvanized wrought or Yalloy, or Durham, Muntz metal ,corporation pipe class 22
PVC conduit is recommended for underground installations. Just remember that a ground wire equal to the maximum load current of the device connected at the other end has to be installed. This ground wire is not counted in conduit fill calculations. It has to have a green insulation in colour and be of a continuous length.
Install sealtite connector and use PVC FA connector -- threads on one end and coupling on other end to glue to pipe.
In the electrical trade it makes no difference which type of box you use. Both types are approved to be used as an electrical junction box. If the object is to keep costs down go with the plastic box. In harsher environments plastic boxes are used along with PVC plastic conduit.
is it permitted to use flexible metal conduit over 6 ft in length as a grounding means
Depends on location and local codes. typically plastic conduit or PVC is used outside or in wet locations. There are restrictions for PVC conduit. PVC can also be buried at a minimum depth of 24" There are a few types of metal conduit. EMT is used the majority of the time. The rigid pipe threads together and can be used in just about all locations. Then there is pvc coated rigid pipe which can be used anywhere provided you use the proper fittings. There are other types of conduit, such as fiberglass, aluminum and composites.
That's an easy one, using conduit is always a better option, and in most European countries is a requirement. Here in the UK, inferior installation standards look more towards cost than quality. My recommendation.....conduit, all the way, all the time.
No you shouldn't. It will fail inspection. Use electrical (grey) conduit. It is about the same price and has the proper electrical insulating properties required. The thicker PVC(schedule 40) is best, although schedule 80 is acceptable. (Schedule 40 is required for underground service feeders.)