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XHHW Wire – Product Information – Priority Wire & Cable
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- Summary of article content: Articles about XHHW Wire – Product Information – Priority Wire & Cable XHHW is an alphabetism or initialism which stands for “XLPE (cross-linked polyethylene) High Heat-resistant Water-resistant.” XHHW is a designation for a … …
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XHHW Wire
Product Information
Dây điện cháy chậm XHHW/ XHHW-2 – CÔNG TY TNHH THƯƠNG MẠI VÀ KỸ THUẬT Á CHÂU
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Dây điện cháy chậm XHHW/ XHHW-2 – CÔNG TY TNHH THƯƠNG MẠI VÀ KỸ THUẬT Á CHÂU Dây điện cháy chậm XHHW 450/750V Heat-Resistance EVA insulated Cable (450/750V XHHW/SIS : K 60245-7) … - Most searched keywords: Whether you are looking for
Dây điện cháy chậm XHHW/ XHHW-2 – CÔNG TY TNHH THƯƠNG MẠI VÀ KỸ THUẬT Á CHÂU Dây điện cháy chậm XHHW 450/750V Heat-Resistance EVA insulated Cable (450/750V XHHW/SIS : K 60245-7) Dây điện cháy chậm XHHW 450/750V Heat-Resistance EVA insulated Cable (450/750V XHHW/SIS : K 60245-7) - Table of Contents:
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THHN vs. XHHW: What Is the Difference? | Multicom
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- Summary of article content: Articles about THHN vs. XHHW: What Is the Difference? | Multicom XHHW-2 wire is the next generation XHHW wire. While its main use is for resential, commercial and industrial buildings, it is also used in raceways, feeder … …
- Most searched keywords: Whether you are looking for THHN vs. XHHW: What Is the Difference? | Multicom XHHW-2 wire is the next generation XHHW wire. While its main use is for resential, commercial and industrial buildings, it is also used in raceways, feeder …
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THHN THWN THWN-2
XHHW and XHHW-2
Comparison
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THHN vs XHHW-2: What’s the Difference?
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- Summary of article content: Articles about THHN vs XHHW-2: What’s the Difference? XHHW-2 is a thermoset product. Crosslink products like XHHW-2 have XLPE (crosslinked polyethylene) insulation instead of PVC. XLPE is more resistant to … …
- Most searched keywords: Whether you are looking for THHN vs XHHW-2: What’s the Difference? XHHW-2 is a thermoset product. Crosslink products like XHHW-2 have XLPE (crosslinked polyethylene) insulation instead of PVC. XLPE is more resistant to … common types of cable insulation, thermoplastic, thermoset, THHN, THHN XH comparison, THWN, XHHW, XHHW-2, XLPE insulationThermoplastic and thermoset are two common types of cable insulation, and it’s important to understand the strengths and weaknesses of each when designing and building a new facility, machine, or appliance. There are a few factors that set XHHW-2 apart from THHN/THWN-2: insulation type, voltage rating, dielectric constant, temperature rating, resistance to leakage current, flexibility, and toxicity in the event of a fire.
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THHN vs XHHW-2
What’s the Difference
XLPE INSULATED CONDUCTORS
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SIMpull XHHW-2® Copper Wire | Southwire
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- Most searched keywords: Whether you are looking for SIMpull XHHW-2® Copper Wire | Southwire Updating 600 Volts & 1000 Volts (see below). Copper Conductor. Cross-Linked Polyethylene (XLPE) Insulation. High-Heat and Moisture Resistant. SIM Technology® for easier pulling. Sizes 14 through 10 AWG also rated SIS.
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XHHW Wire | Allied Wire & Cable
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- Summary of article content: Articles about XHHW Wire | Allied Wire & Cable XHHW Wire, which stands for wire with cross-linked polyethylene (XLPE) insulation, high heat resistance, and high water resistance is the eal solution for … …
- Most searched keywords: Whether you are looking for XHHW Wire | Allied Wire & Cable XHHW Wire, which stands for wire with cross-linked polyethylene (XLPE) insulation, high heat resistance, and high water resistance is the eal solution for … XHHW Wire XHHW WireOur XHHW wire comes with cross-linked polyethylene insulation, providing high heat and water resistance to support demanding and complex needs.
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Why Should Electrical Contractors use XHHW Wire? – Kris-Tech Wire
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- Summary of article content: Articles about Why Should Electrical Contractors use XHHW Wire? – Kris-Tech Wire XHHW-2 is rated up to 90° C in both wet and dry environments. · XHHW-2 is insulated with cross-linked polyethylene (XLPE), which proves a di-electric constant … …
- Most searched keywords: Whether you are looking for Why Should Electrical Contractors use XHHW Wire? – Kris-Tech Wire XHHW-2 is rated up to 90° C in both wet and dry environments. · XHHW-2 is insulated with cross-linked polyethylene (XLPE), which proves a di-electric constant … Have you ever wondered why XHHW is used in your electrical contracting work as opposed to, say, THHN? There are several performance advantages to using it.
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More discussion on Direct BurialTracer Wire and why it’s used
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XHHW-2 Copper Wire | WireAndCableYourWay.com
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- Summary of article content: Articles about XHHW-2 Copper Wire | WireAndCableYourWay.com XHHW wire is generally used for power distribution in resential, commercial, and industrial buildings. They are available as either sol or stranded wire, … …
- Most searched keywords: Whether you are looking for XHHW-2 Copper Wire | WireAndCableYourWay.com XHHW wire is generally used for power distribution in resential, commercial, and industrial buildings. They are available as either sol or stranded wire, … We stock XHHW Copper Building Wire in a variety of gauge sizes for your electrical needs. Available by the foot. Order today for fast shipping!
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XHHW Wire Overview
XHHW is an alphabetism or initialism which stands for “XLPE (cross-linked polyethylene) High Heat-resistant Water-resistant.” XHHW is a designation for a specific insulation material, temperature rating, and condition of use (suitable for wet locations) for electrical wire and cable.
Wires with XHHW insulation are commonly used in the alternating current (AC) electrical distribution systems of commercial, institutional, and industrial buildings and installations, usually at voltage levels (potential difference or electromotive force) ranging from 110-600 Volts. This type of insulation is used for both copper and aluminum conductors which are either solid or stranded, depending on size.
According to Underwriters Laboratories (UL) Standard 44, XHHW insulation is suitable for use in dry locations up to 90° C (194° F), or wet locations up to 75° C (167° F).
XHHW-2 insulation, which is similar to XHHW, is suitable for use in dry or wet locations up to 90° C (194° F).
XHHW / XHHW-2 electrical conductor insulation is governed by the following Industry Standards:
• UL 44
• CSA c22.2. No38
• ASTM-B3
• ASTM-B8
• ASTM-B800
• ASTM-B801
• NFPA 70 -2008 (NEC code)
• U.S. Federal Specification J-C 30B
• NEMA WC70/ICEA S-95-658
THHN vs. XHHW: What Is the Difference?
When designing and building a new facility or machine, engineers need to fully understand the specifications – the strengths and weaknesses of each wire available for the job. The biggest challenge for an engineer is to balance the best wire for the project and the budget.
THHN / THWN / THWN-2 and XHHW / XHHW-2 – are a lot of letters to understand, but they are two common types of building wire, and it’s critical to understand the differences between the two in order to choose the best wire for your application.
Below is a simple chart comparing some of the specifications, and differences:
THHN / THWN / THWN-2
THHN THWN THWN-2 T = Thermoplastic
HH = High Heat Resistance
N = Nylon Coated
Temp Rating: 90° C in dry locations
T = Thermoplastic
H = Heat and
W = Water Resistance
N = Nylon Coated
Temp Rating: 90° C in dry locations and 75° C in wet locations T = Thermoplastic
H = Heat and
W = Water Resistance
N = Nylon Coated
Temp Rating: 90° C in both dry and wet locations
The most popular type of building wire used in construction is Thermoplastic High Heat-resistant Nylon coated (THHN) wire. THHN wire is also commonly used in machine tools, control circuits and some appliances.
THHN wire comes in a variety of characteristics:
Conductors: Depending on the size can be either stranded or solid
Wire material: Copper or aluminum
Jacket: Polyvinylchloride (PVC) insulation with a nylon jacket
Aside from the mechanical protection, a nylon jacket protects the wire from abrasion as it’s pulled through conduit. In addition, the jacket protects the wire from hydrocarbons such as oil, gasoline and grease. The tough nylon jacket also protects the wire from being puncture or accidentally cut as it protects the insulation.
THHN wire is approved for up to 600V and is listed by Underwriters Laboratory (UL), as rated for 90° C (194° F) in dry and 75° C (167° F) in wet environments. THHN wire comes with a dual rating: THHN / THWN, which means it’s appropriate for both dry and wet applications.
XHHW and XHHW-2
XHHW XHHW-2 X = Cross-Linked Polyethylene (XLPE)
HH = High Heat-Resistance
W = Water Resistance
Temp Rating: 90° C in dry locations and 75° C in wet locations
X = Cross-Linked Polyethylene (XLPE)
HH = High Heat-Resistance
W = Water Resistance
Temp Rating: 90° C in both dry and wet locations
XHHW-2 wire is the next generation XHHW wire. While its main use is for residential, commercial and industrial buildings, it is also used in raceways, feeder and circuit wiring.
Conductors: Copper or aluminum
Wire: Solid or stranded cable – stranded wire is used to maintain flexibility
XHHW-2 is approved for use up to 600V and is UL Listed for 90° C (194° F), in both dry and wet locations. The previous generation of XHHW had a lower temperature rating, approved up to 75° C in wet environments, making the next generation XHHW-2 wire a more useful and an ‘all environment’-type product.
Comparison:
Wire and Jacket Insulation:
In addition to the specifications noted above, the main difference between THHN / THWN / THWN-2 and XHHW / XHHW-2 and is in the wire’s jacket. The jacket on the THHN family is thinner – this means that while more THHN can be fit through many obstacles, its jacket doesn’t offer as much protection as the XHHW jacket. As well, the coating on the XHHW’s jacket is more resistant to chemicals, ozone and abrasions while THHN’s thinner coating, under extreme conditions, can lead to current leakage and can break down from chemical or environmental exposure, emitting a toxic smoke when burned.
Flexibility:
Surprisingly, even though XHHW has a thicker and more protective jacket, it is also more flexible than THHN wire. This is due to the XLPE insulation of the XHHW allowing the cable to bend and flex more easily than the PVC insulation of the THHN – making XHHW much easier to work with during the installation process.
Final Thoughts:
As always, the decision between using THHN or XHHW comes down to weighing performance versus budget. Our customers often express that the more popular and less expensive THHN wire is perfectly suitable for what they need. On the other hand, XHHW has the additional features that provide increased efficiency and extended longevity.
Also see: RHW, RHW-2, USE-2 and RHH Building Wire – Explained
THHN vs XHHW-2: What’s the Difference?
FACTORS THAT SET XHHW-2 APART FROM THHN
Thermoplastic and thermoset are two types of cable insulations commonly used for single conductors. It’s important to understand their strengths and weaknesses when designing and building a new facility, machine, or appliance.
THERMOPLASTIC INSULATION
THHN/THWN-2 is a thermoplastic product. It uses a thinner PVC insulation, which can lead to current leakage and dielectric breakdown in demanding circuits or from chemical or environmental exposure. The PVC insulation in THHN/THWN-2 emits a toxic smoke when burned and is less flexible at cold temperatures. However, it is lighter in weight and less expensive to manufacture.
Thermoplastic compounds can be heated, then shaped and cooled to maintain their desired shape. This process can typically be repeated by applying heat to remelt the insulation, which can lead to potential danger in some applications.
Examples of thermoplastic compounds include:
Polyvinyl Chloride (PVC)
Polyethylene (PE)
Polypropylene (PPE)
THERMOSET INSULATION
XHHW-2 is a thermoset product. Crosslink products like XHHW-2 have XLPE (crosslinked polyethylene) insulation instead of PVC. XLPE is more resistant to chemicals, ozone, and abrasions. Because of the chemistries involved, modern XLPE is far less toxic than PVC in the event of fire. In more applications, thermosets are more flexible than thermoplastics and are more advantageous for projects where complex, close-spaced bends are required.
Thermoset compounds utilize a curing process which causes a chemical reaction, allowing the polymers to cross-link. Once cured, the thermoset compounds retain their shape and will not remelt when heat is applied.
Examples of thermoset compounds include:
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