What is an electrical mast

With aboveground wiring (a service drop), the energy enters your home with a metal pole called an electrical mast. The electrical mast connects to a meter box to determine how much energy your home uses and to communicate this with your local power utility company.

What is an electrical mast made of?

The typical service mast consists of 2-inch rigid metal conduit. Sometimes you’ll see a through-the-roof service mast that appears to be leaning from tension in the overhead service drop conductors. This can be repaired by adding a brace, tie back or guy-wire supports.

What does a electrical weatherhead do?

A weatherhead is sometimes called a weather cap, a service head, or a service entrance cap. … Together, they provide protection from rain and rough weather. Because this is the point where electrical power coming from the overhead cables and telephone lines connect into your home, it has to be installed correctly.

What does an electrical weatherhead look like?

Simply put, an electrical weatherhead is a rounded cap, meant to keep the water out of the pipes. … Shaped like a hood, the weatherhead is facing down at an angle of at least 45°. It also has a rubberized gasket to ensure a tight seal.

What is a weatherhead on a house?

A weatherhead is the shell-shaped piece of plastic or metal that shelters the utility cables running into a building. … Power cables run from poles along the street to the weather head on the house. The weatherhead is usually located above the roofline or attached to the cable or side of the house electric lines connect.

What is the electric pole on your house called?

He’s been writing for The Spruce on residential wiring and home installation projects for over eight years. The Weatherhead is a rounded cap whose main job is to keep water out of the pipes, and it’s an essential part of the transfer of power from the utility to your home.

Who owns the utility pole on my property?

The power lines between the power pole and your home, are owned by you (the homeowner). This means that if there is any problem with the power line between the power pole and your property, you will be responsible for their maintenance.

How high does a weatherhead have to be?

The top of the weatherhead shall be a minimum of twenty-four inches (24″) above the roof. If additional riser height is needed for service conductor clearance as required by applicable electrical codes, the riser shall be rigidly braced or guyed from a point within eight inches (8″) of the weatherhead.

Do you need a weatherhead?

Weatherheads are required by electrical codes or building codes. They are also used on utility poles where overhead power lines enter a conduit to pass underground.

Can you touch a service drop?

Never attempt to move or handle a service drop. In the event of a downed power line resulting from high winds, falling trees, etc., call DTE to have the line de-energized and safely restrung.

Article first time published on

Can I replace a weatherhead myself?

We can’t work on anyone’s equipment but our own.” While a handy homeowner could repair the weatherhead, the job is best left to a certified and licensed electrician.

Who is responsible for the wire from pole to house?

The customer/owner is responsible for installing, maintaining and repairing all equipment beyond theservice connection point except for the electric meter. If you receive overhead electric service, your electric system con- sists of the following: 1. Electric Lines that run from the utility pole to your residence.

What is service mast?

A service mast is the metal pole that rises through your roof or affixes to the exterior of your home. It connects directly to your exterior meter box. Service masts protect large cables called “service entrance conductors” that transfer power from the exterior supply to your home’s power meter.

Who is responsible for the weather head?

3. Weatherhead and Service Entrance Cable – You are responsible for the weatherhead and the wire that runs along the outside of your home into the meter, as well as from the meter to your service panel or fuse box. The weatherhead protects the service entrance cable from weather conditions..

What is an electric drop?

An electric service drop is the bundle of electrical cables (or three individual wires, in older installations) that run from the electric utility company’s power pole to the connection at your house.

What is the purpose of a porcelain standoff fitting?

Porcelain standoff insulators are important components in various electrical applications and are used to isolate power sources from making contact with conductive surfaces. Typically, porcelain insulators are used to support copper and/or aluminum bus bar in switchboards, motor control centers and panel boards.

Are electric poles private property?

In most cases a utility pole is built on an easement owned by the utility company, so it’s not really on “your” land.

Who owns the electric pole?

Many of the poles are jointly owned between PG&E and other companies, such as AT&T. Joint owners are members of the Northern California Joint Pole Association.

How do I remove an electric pole from my land?

The only way you could remove the pole is to pay for the electrical line to be buried where it crosses your property. The work would be done by the utility or their contractor.

How does electricity get to your house?

The electrical charge goes through high-voltage transmission lines that stretch across the country. It reaches a substation, where the voltage is lowered so it can be sent on smaller power lines. … The electricity travels through wires inside the walls to the outlets and switches all over your house.

How many volts enter your house?

Residential electric service enters the building in two forms, 120 volts and 240 volts. These are nominal numbers, which means that the actual voltage in the house can vary. Often times, 240 volt electric service is referred to as “220”.

What are the three wires coming into my house?

The service drop consists of three phase wires and a neutral wire which is grounded. Each phase wire provides around 230 V to loads connected between it and the neutral. … Other countries, such as the UK and Ireland, generally provide a single phase and neutral per house, with every third house on the same phase.

What is service lateral?

Service lateral. A service lateral consists of the underground service conductors between the street main – including risers – and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure.

Does the Weatherhead have to be above the roof?

You’d either have to extend the weather head up, to keep the conductors 8 ft. above the roof. Or move the weather head, so that the conductors do not have to overhang the roof by more than 6 ft..

How high does a Weatherhead have to be above the roof?

For overhead service, weather head must be a minimum of three feet above the roof.

What is the recommended height of a meter socket from the ground?

The National Electric Code doesn’t specify minimum, ideal and maximum height for electrical meter boxes, but the utility company does. The center of the meter box should be between four and six feet above the ground according to most utility companies.

How do linemen not get electrocuted?

A live line worker is electrically protected by insulating gloves and other insulating equipment, and carries out the work in direct mechanical contact with live parts. The barehanded approach has a live line worker performing the work in direct electric contact with live parts.

Can a human sit on a power line?

Misconception #2: Power lines are insulated, so they’re safe to touch. This is a common misconception that many people have about power lines. Power lines are not insulated and you should always avoid contact with them. It is quite possible for people to get electrocuted if you touch power lines.

How do birds not get electrocuted?

Birds can sit on power lines and not get electric shocks because the electricity is always looking for a way to get to the ground. The birds are not touching the ground or anything in contact with the ground, so the electricity will stay in the power line.

How tall does a power pole have to be?

Pole is to be a minimum of 16′ tall, with a 5″ minimum diameter at the top, and a 7″ minimum diameter at the butt. 6”x6” square, treated wood poles may also be used. Set pole in the ground a minimum of 4 feet deep.

How much does it cost to replace a power mast?

Electrical meter risers cost an average of $15 to $40 per linear foot. The standard length of a riser is two feet, making the cost per riser about $30 to $80.