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Heavy Duty Extension Cord

Product Details

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★ ★ ★ ★ ★ Read reviews »

All-purpose extension cord for indoor and outdoor use. Extends power to high-amperage tools and equipment. Heavy duty 12-gauge wire.

  • 15 amp rating at 125 volts (1875 watts)
  • Weather resistant vinyl jacket remains flexible even in extreme cold (-4°F)
  • Bright yellow color for increased visibility
  • Lighted female receptacle shows when power is connected

⚠ California Residents: Proposition 65 Information

  • 25' Heavy Duty Extension Cord (15 amp)

    Item #557400 | Weight 3.20 lbs
    In Stock
    $44.00
Data
Accessories
Reviews

Common Uses

When extending power to high-current tools and equipment, you MUST use a heavy-duty outdoor extension cord that meets or exceeds the current you need to draw.

  • Prima Heat Lamp (up to 2.5 amps)
  • Carbon Fiber Heaters (up to 10 amps)
  • 3-in-1 De-icer (up to 12.5 amps)
  • Bucket De-icer (up to 4.5 amps)


Specs

  • Length: 25 feet
  • 12-gauge copper wire extension cord
  • 15 amp rating at 125 volts (1875 watts)
  • Hard service, thermoplastic cable (SJTW) for indoor and outdoor use
  • Weather resistant vinyl jacket provides protection against moisture, abrasion and sunlight
  • Lighted end shows when power is on
  • Usable range: -4˚F to 140˚F

UL Listed


Tips

Don’t use a long extension cable if you have a short one handy.

When using any extension cord, unroll it fully so it is NOT coiled during use. If the wire is kept in a coil, this will create resistance and a magnetic field that heats up.

Caution! Common household extension cords will heat up over time if undersized for the energy draw required by your tool or appliance. Use it in that state for too long, and the wire insulation could melt, creating a potentially dangerous situation.

  • Prima Heat Lamp® (bulb not included)
    Heat Lamp and Accessories

    Prima Heat Lamp® (bulb not included)

    Item #557100 - In Stock

    A rugged and reliable heat lamp used to warm lambs, goat kids, chickens or for any animal that is sick or cold. Use standard or infrared heat bulbs.

    $64.50
  • 600W Carbon Fiber Heater, CFL 600 watt bulb, 12" dia shade
    Heat Lamp and Accessories

    600W Carbon Fiber Heater, CFL 600 watt bulb, 12" dia shade

    Item #557300 - In Stock

    High-output space heater for lambing and kidding pens, chicken coops or horse stables. Built-in “kill switch” turns the unit off if an unsafe angle occurs.

    $96.00
  • 1200W Carbon Fiber Heater, CFL 1200 watt bulb, 16" dia shade
    Heat Lamp and Accessories

    1200W Carbon Fiber Heater, CFL 1200 watt bulb, 16" dia shade

    Item #557301 - In Stock

    High-output space heater for lambing and kidding pens, chicken coops or horse stables. Built-in “kill switch” turns the unit off if an unsafe angle occurs.

    $113.00
  • Heated Poultry Waterer (lid & cord included), 3 gal
    Waterers, De-icers and Heated Buckets

    Heated Poultry Waterer (lid & cord included), 3 gal

    Item #530022 - In Stock

    Reliable heated poultry waterer for all seasons. Top-fill design with dense lid insulation prevents heat escape. 3 gallon capacity.

    $62.00
  • 3-in-1 De-icer
    Waterers, De-icers and Heated Buckets

    3-in-1 De-icer

    Item #520012 - In Stock

    Prevent livestock water tanks from freezing in the winter months. 1500W power usage.

    $71.00
  • Bucket De-icer, 500 watts
    Equipment

    Bucket De-icer, 500 watts

    Item #520014 - In Stock

    250W heater keeps small watering buckets from freezing over during winter months.

    $59.00
  • Heated Pet Bowl
    Equipment

    Heated Pet Bowl

    Item #520018 - In Stock

    For watering your outdoor pets without worrying about the freezing temperatures.

    $27.00
Average Rating: ★ ★ ★ ★ ★ 5 out of 5
Number of reviews: 1 customers reviewed this product.
Recommended: 1 out of 1 said they would recommend this product to a friend.

Write a Review

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Heavy Duty Extension Cord
★ ★ ★ ★ ★
January 19, 2023

Christina A from North Dakota

Way cheaper (cost wise) than I can buy from a chain store. Works wonderful and love the fact it’s heavy duty.

About Conductivity

Conductivity measures the amount of electrical current a material can carry. The opposite measure is known as resistance.

Tinned Copper Superconductor

Many of Premier’s electric net fences feature a green and white superconductor that has both stainless steel and tinned copper filaments for optimal conductivity.

These “premium” nets are 10 times more conductive (38 ohms per 1000') than “basic” nets offered by our competitors. This enables the electric pulse to travel much farther and be less affected by weed contact.

Customers who are unhappy with netting are often those who’ve chosen nets from China or their farmstore equivalents.

Types of Line Posts

Line posts are built into the net. Three options are available.*

Line Posts Compared
  1. Single Spike (SS)
    The best choice, unless your soils are always soft or very hard.
  2. Double Spike (DS)
    Posts allow you to push in the spikes with your foot. When soil is hard or rocky, double spikes are more difficult to install and remove.
  3. Drivable Posts (DP)
    Allows use of a mallet or dead blow hammer for installing posts in dry, hard or rocky soil. Features a “spike stop” for extra support and internal fiberglass ribs for added strength.

Tip: To insert a line post into frozen or hard soil, use a power tool to drill pilot holes.

* Not all fences have all line post options.

About Positive/Negative (Pos/Neg) Nets

Is your area dry?

Conventional electrified fence systems rely on soil moisture to be effective. However, not all areas have the required moisture.

Dry soil increases resistance—a weaker, less effective pulse occurs that does not deter animals.

To overcome this, Pos/Neg nets* are wired to allow the use of every other horizontal strand as an extension of the ground terminal. Because half the strands are connected to the ground terminal or ground rod, reliance on soil moisture is reduced. A PowerLink must be purchased separately to make the secondary ground connection.

How it works…

In order to receive a shock, the animal must touch both a positive (hot) and negative (grounded) strand at the same time. This will deliver more pain to the animal than an all hot net (Pos/Pos) because moisture in the soil is not required to complete the circuit.

Pos/Neg fences can be converted to Pos/Pos in moist conditions. Remember, all fences must be kept free of vegetation.

* Not all fences have Pos/Neg options.

Line Post Spacing

“Plus” nets—6'8" spacings between built-in line posts*

Line Post Spacing

Standard nets—10' or 12' spacings between built-in line posts*

* Spacings are approximate.
Distance between built-in line posts may vary by product.

Essential Energizer Advice

  • Buy a larger energizer than necessary. When the fence pleases, most folks will buy more fence—and need additional output.
  • Use a low-impedance intermittent pulse energizer.
  • Use a fence tester to check the voltage often.
  • Use enough ground rod(s)—included with our energizer kits.
  • Don’t allow your lead acid battery to discharge below 40%.
  • Use insulated wire that is designed for electric fences.
  • Always connect the fence to an energizer, not an outlet.
  • Visit this link for answers to other common energizer questions.

Two Basic Types

  1. All-in-one Solar
    • Solar units are very portable.
    • Because they need a battery, these units are more costly to purchase and operate than plug-in units.
    • Batteries are less effective in cold temperatures (deplete faster).
    • Most farmstore solar units are too weak, in joules of output, to properly energize netting. That’s why we designed our own.
  2. Plug-in & Battery
    • Least cost to purchase and operate per joule of output.
    • Best for fences exposed to heavy vegetation.
    • Cold temperatures do not affect performance.
    • Recommended for whole-farm systems, but can be complex to install. Higher output requires more ground rods, underground cables, multiple output terminals, etc.

Shipping Zones

Map of Shipping Zones
Dan Morrical

Dr. Dan Morrical, Ph.D.
Premier 1 Supplies

Dan Morrical joined the Iowa State University staff in 1984 as Extension Sheep Specialist after completing his doctorate degree at New Mexico State University. He held the rank of Full Professor as of July 1, 1995 and retired from full-time teaching in 2017.

While at Iowa State University, Dr. Dan Morrical was responsible for educational programs in all areas of sheep production, ranging from nutrition, genetics, marketing and management. Research areas focused on applied projects in the areas of nutrition, forage utilization, genetics, out-of-season breeding and lamb survival.

Dr. Morrical has been heavily involved in providing educational resources to the sheep industry. He has authored over 30 extension fact sheets, ration balancing software programs, grazing videos and co-authored the nutrition chapter of the SID Handbook with Dr. Margaret Benson from Washington State University.

Dr. Morrical now serves as Premier’s on-staff small ruminant nutritionist and sheep production advisor. Most recently, he’s introduced a line of “GOLD FORMULA” mineral premixes under The Shepherd’s Choice® brand, aimed to maximize hoof health and immunity.

Braided vs. Twisted

Braiding instead of twisting the horizontals increases the frequency of metal filaments on the outside of the strand.

Braided vs. Twisted Electric Net Fences

What’s the benefit?

  1. More metal is exposed on the outside of the strand. This enables improved animal to conductor contact. The electric pulse is better able to travel from the fence and into the animal, resulting in a memorable shock.
  2. A tighter, braided weave results in fewer snags when carried or pulled through pastures, reducing frustration.

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Washington, Iowa 52353
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Note from the manufacturer of BioWorma®

At this time, we will NOT be able to supply any BioWorma or Livamol with BioWorma in the foreseeable future—this is about as frustrating as it gets and all I can do is apologize to you and ultimately our very supportive customers.

Chris Lawlor
International Animal Health

Manufacturer Note

Due to supply constraints, we are unable to provide an estimated in-stock date for this item. We appreciate your patience and apologize for the inconvenience.

California Proposition 65 Warning

⚠ WARNING: This product can expose you to chemicals including Di-2-Ethylhexyl Phthalate, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.