Here’s the English translation of the analysis of SJOW and HSJOW rubber cables under the U.S. standard:
1. Temperature Resistance Rating
- SJOW:
Standard temperature resistance is 60°C (some models may support 75°C), suitable for general industrial or household applications.
- HSJOW:
“HS” stands for High Heat Resistant, with a typical temperature rating of 90°C or higher, designed for high-heat environments (e.g., inside industrial machinery, near engines).
2. Materials and Construction
- SJOW:
- Conductor: Multiple stranded fine copper wires (Class I or II).
- Insulation: Standard synthetic rubber (e.g., EPDM or CPE).
- Jacket: Oil- and weather-resistant Neoprene.
- HSJOW:
- Insulation and jacket: Use high-temperature-resistant rubber (e.g., silicone rubber or modified Neoprene) with enhanced anti-aging properties.
- The jacket may offer additional resistance to oil and chemical corrosion.
3. Application Scenarios
- SJOW:
A general-purpose rubber cable for indoor or mild environments, such as power tools, household appliances, and temporary power lines.
- HSJOW:
Designed for high-temperature or harsh environments, including metallurgical equipment, generators, welding machines, and high-temperature workshops.
4. Voltage Rating
- Both typically have a 300V rated voltage, but specific models should be verified.
5. Certification Standards
- Both comply with UL 62 (Flexible Cords and Cables) or UL 758 (Appliance Wiring Material). However, HSJOW may require additional high-temperature testing.
Selection Guide
- Choose SJOW: For moderate temperatures, light-duty use, and cost-sensitive projects.
- Choose HSJOW: For high temperatures, frequent flexing, corrosive environments, or long-term durability needs.
Always validate specifications against actual operating conditions and check UL certification details for specific products.
