Mike Dolt Enterprises
Mike Dolt Enterprises
User: Alwayslearningelec, Location: NJ
Asked on: Thursday, March 17, 2011 at 4:25 pm EDT
Answered on: Tuesday, May 14, 2024 at 2:57 am EDT
Question: If you had 5-6 20 receptacles in a wall next to each other( about 3' apart) that utilized EMT how would they be wired? I am assuming becuase they are seperate ckts. you could not just run emt recept to recept and splice thought. Too many wires in a box and it would be tight. Would you have to run a separate conduit up the wall to a box for each. Thanks.
There are several ways to wire 5-6 20 amp receptacles in a wall next to each other using EMT, ensuring compliance with electrical codes
Conduit Home Run Method:
Run a separate EMT conduit from each receptacle location to a central junction box. In the junction box, connect all the wires from the conduits. From the junction box, run individual EMT conduits to each receptacle.
Multi-Wire Branch Circuit (MWBC) Method
Utilize a MWBC, which allows two circuits to share a single neutral wire. Run two separate EMT conduits from the panel to the first receptacle. At the first receptacle, connect the hot wires from both circuits to the receptacle. Continue running the EMT and connecting the receptacles in series, alternating the hot wires from each circuit. Ensure that the neutral wire is shared between all receptacles and connected to the neutral bar in each box.
Junction Box with Separate Conduits
Install a junction box near the center of the group of receptacles. Run a separate EMT conduit from each receptacle to the junction box. In the junction box, connect the hot and neutral wires from each receptacle. From the junction box, run a single EMT conduit to the panel, containing all the wires.
Conduit with Parallel Feed
Run an EMT conduit from the panel to the first receptacle. At the first receptacle, connect the hot and neutral wires from the conduit. Continue running the conduit and connect the receptacles in parallel, tapping off the hot and neutral wires from the conduit. Ensure that the conduit size is adequate for the number of wires and meet code requirements.
Consider the Following Factors
Wire Size and Conduit Size
Choose appropriate wire size and conduit size based on the load requirements and number of wires.
Fill Calculations
Ensure the conduits do not exceed the maximum fill percentage specified in electrical codes (typically 40%).
Accessibility
Provide sufficient access to junction boxes for maintenance and troubleshooting.
Grounding: Ensure proper grounding by running a dedicated ground wire in each conduit.It's important to note that local electrical codes and regulations may vary, so it's advisable to consult with a qualified electrician or refer to the latest NEC (National Electrical Code) guidelines for specific requirements. Flag for review