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When debating an electrical panel upgrade, there are many things to consider? Depending if your electrical service is fed from underground or overhead. You maybe limited to what the next service size will be. With an overhead service, you have options up to 400 amp. With an underground fed service, you are limited to the feeder wires that are running to your service. If your feeder wires were buried with direct burial wire. You will be limited to what ever size was place in the ground. If your wire was ran in conduit and the size was large enough? You might be able to pull in a larger wire size feed. If not? You will have to run a new service from overhead to underground. What can your expect from your electrical contractor? Your contractor will need to coordinate with your local power company as to your new electrical pedestal location. Your contractor with also need to call Blue Stake to determine if there are any other utilities that are in conflict with your existing or new electrical panel location. Their markings are good for 15 days after being placed. You can ask for offset markings or exact location markings. Once that has all been established, your contractor is ready to trench your new electrical line. Your contractor will dig a trench that is often between 36″-42″ inches below grade and about 12″ wide. The contractor is typically responsible for the first 10′ of the riser off the power pole. Location placement will be determined by your power companies field tech operator. Once Rigid riser and supporting brackets are install. A 90 degree 3′ sweep is installed off the riser. This riser is required to be wrapped in 10 mm tape. This tape is to insure the pipe doesn’t corrode in the ground. If this sweep ends up being encased in concrete, that will be determined by the distance between the service entry and the new location of the electrical panel. Once a trench is complete and the conduit is laid out, the power company will come out and inspect it. Once approved, you and install your new electrical panel. Depending on the size of your service? This will determine the size of your grounding rods and bonding copper wire. The electrical panel will also be required to be bonded to your water and gas lines. Depending on your surface you are mounting your electrical service to? There are a few different requirements. Please check with your local power companies approved means of installation. There are many ways to installing your new load center and many different configurations. You can run your service into an all in one electrical panel? This usually has the meter socket and the electrical load center combined into one. You can also install your meter socket separately from your load center. There will be extra material involved? You will need to install a bond bushing from the pipe from the meter side, to your new electrical panel. You will also need to install a bond bushing to any conduit going into your electrical panel that is not as large as the knock out that it is occupying. You will need to wrap your neutral feeder wire in white electrician tape and depending if your using copper or aluminum wire? The Aluminum wire will need to be covered with Noalox. This is an Anit-oxidant agent that helps with expanding and contraction of the aluminum wire along with any weathering of the wire over time. All breakers must match the brand of the electrical panel your are currently installing, along with any code upgrades your are able to install with your existing wire requirements. For example; if you own a pool? Your 2 pole 15-20 amp breaker must be GFCI Protected. If your house circuits do not share neutral wires? You may consider installing AFCI brakers. You can see our past blogs for more information on these types of breakers. You must separate all ground and neutral wires to their own designated grounding bar. Once your panel is complete, you will be required to label your panel with your current street address. This can installed near the meter socket.
When installing an over head service, you will need to make sure the riser is securely fastened to the wall with strut strap or two hole strap. Your riser height will be determined by your power company. If your are installing over a pony wall? You will need to install lag bolts through the wall with 3/32 flat stock steel for support. You will also be required to install guiding wire to the riser as a support system and attach to the roof. Wire support system should not exceed more that 60 degrees from riser center. Your feeder wire should be at least 18″ outside your weather head. This allows your service provider and easy way for new service hook up.
Arizona Electrical Solutions is your electrician in Phoenix, Arizona. If your looking for a electrical panel upgrade? 100 amp, 200 amp, 400 amp.. Give us a call today! (602) 960-9669
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