I live in Michigan, Ypsilanti. We are int he process of installing the second meter and nema 14-50 plug our self. Well the purpose of doing this ourselves (me and my cousin) is that he likes to do these kind of projects and he insisted that we give it a try. Any ways I went to the township for a permit and got a permit.
I called DTE and they emailed me instructions, I copied some instruction at the bottom for wire specification where we are a little confused. Questions at the bottom.
Below are pictures with some text explaining what i have done so far.
outside: In the above image you see a separate meter 125amp installed with seu 2-2-2 connected to the top and SER 2-2-2-4 connected to the bottom. I went to lowes first and bought this cable they did not have 2-2-2. I asked if it was okay for me to use this the lowes associate said yes just dont use one of the wires, so we clipped the ground. white,red and black are connected. we ran out of cable so went to homedepot to get the 2-2-2 which will be connected to the main meter
The main meter is locked so no connection is made to the main meter. The document provided by DTE said to connect to the load side and leave enough cable so that DTE can then move it to main line.
outside
inside garage: The cable on top is the old cable coming directly from the main panel, so lets ignore that.
The bottom cable is coming from ev meter to 100amp panel. The reason for 100 amp is so that i can add another breaker when i get model 3. The cable coming from meter to panel is less than 10ft.
Questions
I called DTE and they emailed me instructions, I copied some instruction at the bottom for wire specification where we are a little confused. Questions at the bottom.
Below are pictures with some text explaining what i have done so far.
outside: In the above image you see a separate meter 125amp installed with seu 2-2-2 connected to the top and SER 2-2-2-4 connected to the bottom. I went to lowes first and bought this cable they did not have 2-2-2. I asked if it was okay for me to use this the lowes associate said yes just dont use one of the wires, so we clipped the ground. white,red and black are connected. we ran out of cable so went to homedepot to get the 2-2-2 which will be connected to the main meter
The main meter is locked so no connection is made to the main meter. The document provided by DTE said to connect to the load side and leave enough cable so that DTE can then move it to main line.
outside
inside garage: The cable on top is the old cable coming directly from the main panel, so lets ignore that.
The bottom cable is coming from ev meter to 100amp panel. The reason for 100 amp is so that i can add another breaker when i get model 3. The cable coming from meter to panel is less than 10ft.
Questions
- What did i do wrong above that will fail inspection? Now that we have done so much i would like to do all the fixes as well instead of getting an electrician to look it over and fix and do the remaining tasks.
- Do i need to ground the ev electrical panel? I did not right now as i thought that the panel is connected to ev meter which will connected to main meter which has a ground connected to it. I i do need to ground it can i just take the ground from the main panel?
- For inspection do i need to connect the to meters together and install a jumper in ev meter so that the inspector can test the connection? or will the inspector have jumper bypass with him?
- In Michigan home owners are allowed to pull the meter out so i have already requested DTE to remove the lock.
Wiring Specifications.
(a) The meter enclosure assembly diagrams (7-14-3) for the Residential Rate D1.9 show typical methods for separate meter installations. For acceptable metering enclosures (single/multiple positions) see ESIG (SIM) section 5-8.
(b) It is the customer’s responsibility to furnish the meter enclosure.
(c) The interconnection between the Residential meter and the Rate D1.9 meter must be sized to serve the current requirements of the customer’s connected load. In any case, the minimum size acceptable is #8 AWG copper or equivalent.
(d) For Rate D1.9 the contractor will connect the service to the load side of the Residential Service meter leaving enough wire slack to easily reach the line terminals. Detroit Edison personnel will move the conductors to the line side when the installation is accepted for service.
(e) Conductor metal must be compatible with the line side conductors, even though the temporary connection will be to the load side (Al to Al or Cu to Cu).
(f) The Rate D1.9 service disconnect and distribution panel will be separate from the customer’s regular service disconnect and distribution panel and must comply with the requirements of the National Electrical Code.
(g) If there are multiple space conditioning units, water heaters or electric vehicle charging circuits, Detroit Edison Service Planning will approve the conductor size to properly connect all load to the residential meter.
(h) All wiring must comply with the requirements of the National Electrical Code.
(i) It is the customer responsibility to contact Detroit Edison Customer Service (800-477-4747) and report that work is being scheduled and the meter enclosure seal will be broken.When the connection is made to the line side and jumpers are installed, Detroit Edison will be notified immediately that the installation is unmetered.