XHHW and XHHW-2: A Brief Introduction
- XHHW stands for Cross-linked Polyethylene (XLPE) High Heat-resistant Water-resistant. It is a robust building wire with a cross-linked polyethylene (XLPE) insulation. Traditionally, it is rated for up to 90°C in dry locations and 75°C in wet or damp locations.
- XHHW-2 is an enhanced version. The “-2” suffix indicates that the wire meets more stringent requirements, allowing it to be rated for 90°C in both dry and wet locations. This is the primary and most critical difference between the two.
Key Characteristics: XHHW vs XHHW-2
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Common Applications: Where Are They Used?
- Dry Locations: Conduit, ducts, and trays in commercial buildings, feeders, branch circuits.
- Limited Wet Exposure: Damp indoor locations where the operating temperature does not exceed 75°C.
- All XHHW applications.
- Wet or Damp Locations at Full Rating: Direct burial (when used as XHHW-2 USE), wet underground conduits, industrial plants with high humidity, cooling facilities, outdoor equipment feeders, and anywhere moisture is a persistent concern with elevated ambient temperatures.
- It is increasingly considered the modern, future-proof standard for new installations to simplify specification and ensure maximum durability.
How to Choose the Right Wire for Your Project
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Why Choose JZD Cable for Your XHHW-2 Wire?
- Certified Quality: Our wires are strictly produced and tested to meet UL, CSA, and other relevant standards, guaranteeing the 90°C wet/dry rating.
- Full Range Available: We stock a comprehensive range of sizes in both copper and aluminum conductors to meet your project’s specific demands.
- Durability & Safety: The premium XLPE insulation offers excellent resistance to heat, moisture, chemicals, and abrasion, ensuring a long service life.
- Expert Support: Need help specifying the right cable? Our technical team is here to assist you in selecting the optimal product for your application, budget, and code requirements.
