Skip to Content

How Deep Underground Power Needs To Be Chart

How Deep Underground Power Needs To Be Chart

Wondering how deep underground power needs to be? Are you having someone dig a trench and need to know a depth. We can help advise with that.

On Average the depth of underground power needs to be at least 900 mm or 3 feet to the top of the cable or conduit. Since you will most likely need to hire someone to dig a trench for you it is a good idea to go to the full depth.

You can have a less depth however read on to get all of the details. Obviously there are different rules for different states and provinces.

As Per Canadian CEC 2018 Electrical Code

vehicle area power cables coms non vehicle area power cable coms
900 mm or 3 feet450 mm or 18 inches

How deep underground power need to be?

Now that you know how deep underground power needs to be on average you need to learn how deep the trench you have to dig for the power you need to run must be. What’s a trench? A trench is basically a tunnel or path that runs to the power source.

It is usually very wide and may have 4-5 sides. The sides of a trench run vertically. What is the power that you are going to need? When thinking about what kind of power you will need it is important to know what kind of power you will need.

There are different options for power in the future. How deep underground power needs to be? The average distance of a power cable is either 2.5 – 100 meters in length.

The reason for this length is because it takes time to bury such a long cable. The shorter the cable the quicker you can build a trench.

How deep underground power utilities buried?

Before we get into the how deep, let’s talk about where it is going. The source: A transformer carries alternating current (AC) electricity from the poles to the circuits. The voltage of the voltage of the current must be at least 3,400 volts DC. Cable:

This is where the AC power comes from, so it’s the size of the copper tubing and the thickness of the plastic casing. Cable is 3,000 mm or 12 feet. Cable encased in copper tube is the copper casing. It is called conductor X.

Cable exposed to the elements of the earth will rust and become brittle over time and weaken the insulation from the metal. The insulation between the metal part and the copper part in a cable is called insulator. The insulation on the outside of the copper circuit is called the face.

How deep underground power in conduit?

You need to know the depth that is needed depending on the types of cables and conduit you are using. It is also important to know the above-ground and underground usage of your equipment. When looking for the right contractor to install underground power, you should take these factors into account.

Vertical/horizontal distance The vertical distance, or the distance from the surface to the top of your underground conduit is the same regardless of whether it is a power conduit or conduit for light. Now if the conduit is for power then the vertical distance should be equal to the horizontal distance or how far up you want the conduit to be. For example if the conduit is only going to be up to 50 feet, then you would need a conduit of 60 feet in length.

Can I bury water line and electric together?

One must maintain a minimum of 1 meter between water and power lines.

If so, then the condition of the water/electrical will also have to be insured. What if there is a leak of some type? So far most of the insurance policies have excluded the need for insurance. But for some this might be a good insurance to have.

What is the different water line and electric numbers? The age and function of your house determines the number. Usually, they are three. Water line – This is the supply line for water that runs out of your house and into the street or a sewer.

This is the supply line for water that runs out of your house and into the street or a sewer. Electrical – The lines that carry the electricity from the mains and to the home. These are the lines that carry the electricity from the mains and to the home.

Does underground electrical wire need to be in conduit?

You will find that electric wires need to be in conduit in most states. However if you are having underground power connect to the old power lines from a house, garage, or building on your property they will need to be more modern.

This is because the old wires were what was actually part of the earth and under a lot of construction today you would find that they are all buried. It’s important that you find out what needs to be on a particular property, you can ask for any additional information that is required in the property description and in the owner hand book. Click here for the underground electrical information you need to buy a house.

Other types of underground wires are direct burial and tech 90 cables.

What conduit do I use for underground electrical?

There are many options and types of conduit to choose from. Cable Tray , Rock Walls, Jointed and Cased, Water Purification Pipe or RHVP pipes How deep will I have to dig? Always understand what you want your underground electrical setup to be.

This is very important as you don’t want to dig too deep and have to carry the wire all the way back to the surface. How deep will the cable actually need to be? On average it’s usually anywhere from 900 mm to 1800 mm of 18 inches to 36 inches deep.

Not everyone will need to dig deep, and they may have less experience digging than you. Just make sure that you have the type of conduit that is deep enough. You need to ask an electrician how deep it is and what type of construction you can get to dig it in.

How far can you run electrical wire underground?

In Canada we have no standards for underground power. We do have guidelines for cabling and for laying conduit though. The guidelines are: Above Ground – 500 m above ground – 500 m above ground Below Ground – 500 to 1700 m below ground.

Can I put a Vertical Cable Access Point on the Property From our company: “VCA is a common method to allow for electrically powered utility services or emergency phone services to access your building when it is far away from the electrical power substation.

The conductors will be fed from the electrical utility to the basement of the building and connected to the equipment in a manner that the systems will not adversely affect other electrical services or the fire protection systems.

What size wire do I need for a 200 amp underground service?

When you are digging to bury a 200 ampere underground service the size of the wire depends on a few different factors: -How deep you are going -The type of pipe used in your trench -The number of service rods in your service -Elevation. This will depend on how deep you are and you need to take into account the amount of water in your ground.

Ground water could cause a few issues and in some cases should be avoided. This is why you should consider a trench that is covered with concrete in some areas. There are a few examples below: Example 1 – I am digging a trench and the length of the service line is 4 feet. In this case I would suggest an under-service wire of 230 or 240 ft long.

This is the maximum you can get away with without the service rod moving.

What is the best wire for underground?

We are going to have to start with a different answer. The reason I have to make this exception is because underground power needs are so varied. Even though the lengths are pretty much the same, a lot of cities use different styles of underground power.

If you want to know the best wires then go check out the newest underground power installation. This is the way the cable is buried, the conduit itself and the wires that are inside the cable. There are a few different varieties of underground power that you can use.

I will make a quick note on each type of underground power and why you would want to choose it. The one thing to remember is that these wires are very, very heavy so you want them to be in a safe, hard to destroy location.

Generally the best wire type to use is tech 90 underground rated cable. It is flexible and easier to work with.

How much does it cost to put electrical wire underground?

This can vary from $10,000 to $200,000 for cable installation. For underground cable installation depending on your application you should be aware of the following costs. Min. $ 10,000 A convenient underground electrical pole needs at least 100 millimeters or .9” plating.

If you are looking for a non-core site or walkway then you can use 50 mm but that is really difficult to move, dig and handle so we recommend 50 mm plating or possibly 200 mm if the site and plating has good topographical stability.

100 mm Plating costs $.05 per meter. 80-100mm costs $.05 per meter 100-150mm costs $.05 per meter 200mm cost $.07 per meter 300mm costs $.10 per meter 350mm costs $.12 per meter 400-500mm costs $.15 per meter 1-2Kmm costs $.20-50 per meter 2-4Kmm costs $.

How do I determine electrical cable size?

We have two options here for how you can determine the cable size of your electric service. 1. By using a quote from the company.We encourage you to purchase a quote from a company that you trust. Before purchasing your own cable or conduit go to your local electrician to compare They are the most reliable companies in Canada and will be up on all the latest code requirements .

They can determine the size cable for you and help you with the distance of voltage drop. The longer the distance the larger the cable needed.


If you would like to see more on the products we recommend.