Can you use aluminum wire in a agricultural building

image

In reading through the Agricultural section of the Nec I found no mention of Aluminum, only copper se. Thank you. Thank you for asking your question on Just Answer Electrical. You are corresponding with JOSEPH – Your “Personal On-Line Electrical Consultant”. You can run aluminum as feeders if you run them in conduit. But not SER cable in conduit.

Aluminum equipment grounding conductors are now permitted underground in agricultural buildings. Code Change Summary: Aluminum equipment grounding conductors are now permitted to be used in agricultural buildings.

Full
Answer

Is it safe to use aluminum wire in a house?

In houses, multi-stranded aluminum wire is still common today for main feeder service wires and circuits like electric stoves. Solid aluminum wiring has many downsides, including rust and creeping. Solid aluminum wires are particularly unsafe, causing hazard conditions like arcing, which can cause a house fire.

Can aluminum wire be used in Conduit?

Although not required by the 2005 National Electrical Code (NEC), aluminum alloy building wire in the United States is compact stranded and generally can be used in the same size conduit as copper. Compact stranding reduces the diameter of the conductor by about 10% ( Photo 1 ).

What size wire do I need for aluminum building?

Today, aluminum alloy building wire is generally available in sizes 8 AWG to 1,000kcmil (up to 1,500kcmil in Canada). Although not required by the 2005 National Electrical Code (NEC), aluminum alloy building wire in the United States is compact stranded and generally can be used in the same size conduit as copper.

What is aluminium wiring?

Aluminum wiring requires the use of specific type components and special handling techniques. It is very popular to replace old/outdated receptacles and switches when preparing the dwelling for sale or deciding to update living areas – i.e. “Decora” style components.

image


Can aluminum wire be used for ground?

The grounding conductor is usually copper; however, you can use aluminum or copper-clad aluminum if it’s not in contact with masonry or earth. Outside, aluminum or copper-clad aluminum cannot be within 18 inches of the earth.


What kind of conductor must be used for an equipment grounding conductor installed underground inside an agriculture building?

Separate Equipment Grounding Conductor — All equipment grounding conductors installed in Agricultural Buildings shall be a copper conductor. If installed underground, the equipment grounding conductor shall be insulated or covered.


Is aluminum used for branch circuits and feeders?

“Aluminum conductors are not used that often for smaller branch circuits up to about 30 amperes; but, above that, they are regularly used for services, branch circuits and feeders.


Where may be present in an agricultural building enclosures and fittings shall have corrosion resistance properties suitable for the conditions?

(3) Corrosive Atmosphere Where wet dust, excessive moisture, corrosive gases or vapors, or other corrosive conditions may be present, equipment enclosures, boxes, conduit bodies, and fittings shall have corrosion resistance properties suitable for the conditions.


How do you wire a barn for electricity?

1:3713:42DIY – Wiring A Barn – Running Wire. Part 1 of 3 – YouTubeYouTubeStart of suggested clipEnd of suggested clipSo the first thing I’m gonna do is run two lines to this box I also have a 15 amp breaker I’m gonnaMoreSo the first thing I’m gonna do is run two lines to this box I also have a 15 amp breaker I’m gonna install here and those two wires are gonna go into that same breaker.


Which of the following must be installed in livestock areas per 547.10 A in the National Electrical Code?

This section makes it clear that wire mesh or other conductive elements are required to be installed in the concrete floors of livestock confinement areas and must be bonded to the grounding electrode system of the structure or area served to provide an equipotential plane per NEC 547.10 (A) and (B).


Is aluminum wiring allowed by code?

In the United States, solid aluminum wires made with AA-8000 series aluminum alloy are allowed for 15-A or 20-A branch circuit wiring according to the National Electrical Code. The terminations need to be rated for aluminum wire, which can be problematic.


Is it against code to have aluminum wiring?

Aluminum wiring is not illegal, but it is no longer up to code and new homes are now built with copper wiring. If you are thinking about buying or selling a home with aluminum wiring, you will be ok as long as you follow the instructions on how to deal with it.


Are aluminum wires acceptable?

The wiring itself isn’t a problem; aluminum conducts electricity safely. The trouble is at the connections. The U.S. Consumer Product Safety Commission (CPSC) reports that homes with aluminum wiring are 55 times more likely to have “fire hazard conditions” than homes wired with copper.


When sealing fittings are required for Class I locations they shall comply with which of the following rule?

When sealing fittings are required for Class I locations, they shall comply with which of the following rule(s)? – The minimum thickness of the sealing compound shall not be less than the trade size of the sealing fitting and, in no case, shall the thickness of the compound be less than 5/8 in.


Where feeder conductors that supply a garage that is not attached to the house what is required?

When a feeder is supplying the garage, a grounding electrode is required at the garage. If there are no existing grounding electrodes at the garage, two ground rods shall be installed and connected to the equipment grounding bar in the garage panel (see Figure 2).


Which of the following is an approved wiring method in any Class II location?

As noted in Sec. 502.10(B)(1)(2), the following wiring methods shall be permitted: “rigid metal conduit, intermediate metal conduit, electrical metallic tubing, dusttight wireways.”


What is aluminum wire made of?

Aluminum wires are made up of an alloy, which is a mixture of two or more metals. Two types of alloy are found in residential wiring, types AA-1350 and AA-8000. AA-1350 has a minimum aluminum content of 99.5 percent AA-8000 has a lower percentage of aluminum content and was designed to more closely resemble the properties of copper for wiring.


What is the difference between aluminum and copper wire?

Apart from the color both are metal and both conduct electricity. Aluminum has more resistance to electrical flow than copper, with only 61% of the conductivity. Because of this, a wire made from aluminum needs to have a larger cross-section than a wire made of copper carrying the same electrical load.


Why is aluminum wire so hard to nicked?

Aluminum can be easily nicked because it is softer than copper.


How many homes in Mississauga have aluminum wiring?

Over 7,000 homes in Mississauga contain aluminum wiring. Extended this across the provinces and we are looking at tens of thousands of homes. If the subject dwelling was built between the mid-1960s and late 1970s, there is a strong possibility that aluminum wiring may be present. Is this a cause for worry?


Which is better, aluminum or copper?

Aluminum is softer than copper and has a great rate of expansion and contraction when heated and cooled. Copper also has a greater tensile strength so is less prone to thinning when it is put under strain lengthwise. There is only one type of metal used in copper wires, copper.


Can you hire an electrician to repair aluminum wiring?

It is recommended you hire one familiar with alu minum wiring. Before making the repairs, the Licensed Electrical Contractor should do an assessment and take out any necessary permits so the work is subject to review and inspection by ESA. Be sure to obtain a copy of the Certificate of Inspection for your records.


Is AA-1350 wire safe?

In the 1960s and 1970s, due to the high price of copper relative to aluminum, the AA-1350 grade of aluminum began to be popularly used for household wiring. Aluminum wiring itself is safe but requires special handling, connectors, and periodic inspection.


When was aluminum wire used in electrical wiring?

The National Electrical Code® has recognized conductors made of aluminum since for many years. Aluminum wiring was UL listed for residential use in 1946. The use of aluminum wire for feeders and service entrances was common by the early 1950’s and continues today. In the early 1960’s, Kaiser Aluminum and other aluminum manufacturers introduced …


When was aluminum wire installed?

Research suggests that older solid aluminum wire, generally wiring installed prior to 1972 may be more likely to experience connection problems than post-1972 solid aluminum wire or copper wired connections.


How many people died in the aluminum wire fire?

These fires cause more than 140 deaths, injure 1,400 people and account for $349 million in property damage. Statistics on fires specifically caused by aluminum wiring are not kept. CPSC official’s say that what’s upsetting is that many homeowners still don’t recognize the hazard that solid aluminum wire represents.


Why is copper wire dull silver?

The dull-silver coating on older rubber-insulated copper wire was necessary to prevent the chemicals in the rubber from interacting with the copper. Older receptacles and switches used steel terminal screws.


How many amps does #10 need?

To supply these circuits with aluminum wire would require #10, which would be rare in this application. #10 aluminum requires 25-amp breakers, a size that is manufactured, but is not allowed for multi-outlet branch circuits. In the “real world” we may find #10 aluminum protected “incorrectly” by 30 amp breakers.


What type of screws do switches use?

Older receptacles and switches used steel terminal screws. The combination of steel screws and aluminum wiring was bad and certainly would seem to have contributed to connection issues. However, switches and receptacles with steel terminals were also problematic with copper wiring.


How many homes have aluminum wire?

Aluminum Wiring. There are about 2 million homes in the U.S. that are believed to have solid aluminum branch-circuit wiring. For decades this type of wiring has been publicized as a potential fire and safety hazard. Today, Americans are loading up their homes with high-tech appliances and products that draw more electrical current …


What happens if you have aluminum wire in your house?

Many houses built between 1965 and 1972 were wired with aluminum instead of copper. The wiring itself isn’t a problem; aluminum conducts electricity safely. The trouble is at the connections.


Can you rewire a house with copper wire?

Completely rewiring your home isn’t practical in most situations—it means tearing into walls and ceilings. But an electrician can make the connections safe by adding a short section of copper wire to the end of each aluminum wire. That way, copper rather than aluminum will be connected to each switch, outlet or other device.


Is aluminum wire more dangerous than copper wire?

Consumer Product Safety Commission (CPSC) reports that homes with aluminum wiring are 55 times more likely to have “fire hazard conditions” than homes wired with copper. Aluminum Wiring.


Why is aluminum wire used in electrical?

Most all high voltage electrical utility services are aluminum wire or an aluminum alloy wire because it would be cost prohibited to install copper.


How to install aluminum wire?

Safe Practices When Installing Aluminum Electrical Wiring#N#Aluminum wire is safe when the materials and methods of installation are correct as described in this list: 1 The wire gauge of aluminum wire must be sized sized correctly. 2 The insulation type must be approved for the application. 3 Aluminum wire must be installed properly. 4 Aluminum wire must be for approved or permitted for the project or applications. 5 Corrosion inhibitor must be applied when making connections.


Is aluminum wire safe?

Aluminum wire is safe when the materials and methods of installation are correct as described in this list: The wire gauge of aluminum wire must be sized sized correctly. The insulation type must be approved for the application. Aluminum wire must be installed properly. Aluminum wire must be for approved or permitted for the project or applications.


Why is special precautions required with electrical wiring in the above types of buildings?

Special precautions must be taken with electrical wiring in the above types of buildings because of dust from feed and litter and corrosive agents associated with animal confinement.


What is the electrical code for barns?

Barns, Riding Arenas and buildings which provide animal habitat, animal care or feed storage are subject to National Electrical Code Article 547 – Agricultural Buildings. Wiring methods, equipment and light fixtures must be of an approved type for the environment where they are installed.


Why is aluminum wire dangerous?

Aluminum wire might become dangerous because the issues that make it inferior all contribute to it wearing down. This is a considerable cause for concern because having been built in the 60’s and 70’s homes with aluminum wiring are already quite old and may be at risk.


How often should I inspect aluminum wiring?

If the aluminum wiring is in good condition and you are trying to delay the repairs for a while, have an electrician with experience in aluminum wiring repairs inspect some heavily used circuits, then go over the process once a year.


What is the difference between aluminum and copper?

Another difference between aluminum and copper is oxidation. The layer that forms on copper conducts electricity easily, but aluminum oxide is a bad conductor of electricity, …


Is aluminum wire safe?

Aluminum Wiring is mostly safe, although there are some special considerations to be made when dealing with aluminum wiring. For the most part, homeowners have no problems with aluminum wiring, but when incorrect receptacles or conductors are installed, the threat of a hazard is likely. While a continuous run of AL Wire does not necessarily present …


Can you use marrettes on aluminum wire?

Strippers, pliers, and marrettes will all damage the aluminum conductors. In conclusion, aluminum wiring is safe* if proper connections and terminations are made, without damaging the wire, and any devices used are approved for use with aluminum wire. * (Electrical Safety Authority)


Do you need to have aluminum repair done?

You might not need to have any aluminum repair work done at all. If the home is properly wired and does not show signs of fire risks or faulty wiring, you can rest easy knowing your home is safe. *Even if no signs of trouble exist, periodic inspection by an experienced electrician is recommended.


Can aluminum wire cause fires?

This is how aluminum wiring can cause fires. It can overheat more easily than copper and start electrical fires by slowly damaging its insulation and heating things around it. The issues are caused by oxidation and other factors that lead to overheating where the wiring is connected at splices, outlets, and light fixtures.


Is Aluminum Wiring Bad?

Is aluminum wiring bad? How to connect copper and aluminum wires safely.


Should You Replace Existing Aluminum Wiring?

Aluminum wiring is plagued with several issues that are hard to ignore. Most homeowners console themselves that their wiring has been around for more than 50 years. In normal circumstances, that is a commendable achievement.


Additional Repair Options for Aluminum Wiring

The bottom line is that remodeling is the best solution, then go for it. But, if you wish to check out other options aside from replacing aluminum wiring, I compiled some of them for you:


Issues with Homeowners Insurance and Aluminum Wiring

The challenge with aluminum wiring is that most insurance companies shy away from covering such dwellings. In such a case, you will do a lot of shopping before finding an insurance company willing to insure your home with aluminum wiring installed.


When Did Aluminum Wiring Start Being Used in Construction?

Electricity was invented in the 19th century and mass adoption followed shortly afterward. The inventors were aware that copper was an excellent conductor of heat from the start. So copper was adopted earlier on, even when wiring at homes became a thing.


Final Thoughts

If you plan to buy a home with aluminum wiring, you may solve the problem through the methods we’ve discussed. Aluminum’s primary concern is not the wires themselves but the connections at outlets and switches.


Sources

I’ve been conducting home inspections for 17 years. I’m a licensed Home Inspector, Certified Master Inspector (CMI), and FHA 203k Consultant. I started HomeInspectionInsider.com to help people better understand the home inspection process and answer questions about homeownership and home maintenance.

image


Differences Between Copper and Aluminum Wiring

Image
Apart from the color both are metal and both conduct electricity. Aluminum has more resistance to electrical flow than copper, with only 61% of the conductivity. Because of this, a wire made from aluminum needs to have a larger cross-section than a wire made of copper carrying the same electrical load. Aluminum is much lighter than copper at only 30% of the weight, so even if a large…

See more on ontarioachi.ca


Residential Wiring

  • In the 1960s and 1970s, due to the high price of copper relative to aluminum, the AA-1350 grade of aluminum began to be popularly used for household wiring. Aluminum wiring itself is safe but requires special handling, connectors, and periodic inspection. As we said previously because aluminum has different physical properties than copper the two react differently and expand/contract differently when under electrical load. Improper conne…

See more on ontarioachi.ca


Aluminum Wiring May Be Something to Be Concerned About For 3 Basic Reasons

  1. The wire can overheat at the receptacle due to it tends to oxide thus increasing the wire’s overall resistance.
  2. Aluminum can be easily nicked because it is softer than copper.
  3. Aluminum can thin and therefore provide greater resistance if pulled lengthwise.
  4. Aluminum wiring also tends to change shape due to thermal expansion and contraction. When this happens, the screws can become loose or fall off at the terminal itself.

See more on ontarioachi.ca


Unsafe Aluminum Wiring Warning Signs

  • Aluminum wiring requires the use of specific type components and special handling techniques. It is very popular to replace old/outdated receptacles and switches when preparing the dwelling for sale or deciding to update living areas – i.e. “Decora” style components. These are visually more appealing than the old fashioned components and the folks at local building supply stores are more than happy to sell them to you. What is “sometimes” (ok, u…

See more on ontarioachi.ca

Leave a Comment