How to Upgrade an Electric Meter to 200-Amp Service (Part 1) | This Old House

Build It
Master electrician Scott Caron shows the first phase of replacing an antiquated electrical system.

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1. Have utility company to disconnect electrical cables from the house.
2. Remove the glass meter from the meter socket.
3. Unscrew meter socket from side of house, then use cable cutters to sever the cable connected to the socket.
4. Enlarge existing cable hole in wall using a cordless drill and 3-inch-diameter hole saw.
5. Bore through the rim joist using an extension shaft and 2-inch-diameter hole saw.
6. Attach a length of 200-amp SE electrical cable to the new meter socket.
7. Feed the SE cable through the hole in the wall and then screw the meter socket to the exterior of the house. Use a torpedo level to ensure the socket is level.
8. Install the new PVC weather head and conduit to the exterior wall, directly above the meter socket. Secure the conduit to the meter socket using PVC cement. Fasten the conduit to the house with U-shaped plastic clips.
9. Have the utility company mark the locations of any underground lines. Then, pound two copper ground rods into the ground using a 3-pound sledgehammer. Space the rods 6 feet apart.
10. Make the wire connections between the ground rods, up to an inter-system bonding termination, and into the meter socket.
11. Connect the power wires to the meter socket.
12. Plug the glass meter into the meter socket. Then, snap on the meter cover.

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How to Upgrade an Electric Meter to 200-Amp Service (Part 1) | This Old House

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