In high-temperature operating environments such as metallurgy, petrochemicals, rail transit, power generation, and industrial furnaces, cables not only bear the crucial responsibility of transmitting electrical energy and signals but also directly relate to system safety and personnel life. Therefore, scientific selection is the first line of defense in ensuring the continuous and stable operation of equipment.
I. Core Selection Logic
Determine the operating temperature rating
Determine the long-term operating temperature based on actual working conditions (e.g., 90℃, 125℃, 180℃, or even 250℃), and allow for a safety margin.
Match insulation and sheath materials
90–105℃: Cross-linked polyethylene (XLPE) or heat-resistant PVC can be selected;
125–180℃: Silicone rubber, ethylene propylene rubber (EPR), or fluoroplastics (such as FEP, PFA) are recommended;
>200℃: A composite structure such as mica tape wrapping + glass fiber braiding + Teflon sheath is required.
Consider mechanical and chemical environments
High temperatures are often accompanied by oil stains, acids and alkalis, vibration, or movement requirements. Abrasion resistance, oil resistance, flexibility, and tensile strength should be evaluated simultaneously.
Comply with safety standards
Prioritize flame-retardant, low-smoke zero-halogen (LSOH), or fire-resistant cables, military cables, and special cables that have passed EN, CCC, IEC, UL, GB/T, GJB, and other certifications. II. TST CABLE High-Temperature Cable Selection Reference Table
Working Temperature Range | Recommended Insulation/Sheath Material | Typical Application Scenarios | Product Advantages (Our Company)
≤90℃ | XLPE / Heat-resistant PVC | Conventional power distribution, control circuits | Cost-effective, fast delivery, compliant with GB/T 12706
90–125℃ | EPR / Silicone Rubber | Motor lead wires, tunnel lighting | Flexible and bendable, 30% improved aging resistance
125–180℃ | Silicone Rubber / FEP (Fluoroplastic) | Metallurgical continuous casting, petrochemical heating equipment | Oil and chemical corrosion resistant, maintains flexibility at -60℃
180–250℃ | Mica + Fiberglass + PFA Sheath | Industrial furnaces, aviation ground power | Passed IEC 60331 fire resistance test, continuous power supply for ≥180 minutes under flame
>250℃ | Ceramicized Silicone Rubber / Metal Armored Mineral Insulated (MI) | Nuclear power, fire emergency systems | Reliable in extreme environments, the company has the capability to customize MI cables
III. Advantages of TST CABLE
Material Innovation: Collaborating with universities, we use first-principles calculations to optimize polymer formulations, improving high-temperature stability and lifespan.
Full-Chain Quality Control: From conductor drawing to cable cross-linking, 12 key processes are monitored online, with a defect rate of <0.3%.
Fast Customization: Supports flexible customization of core count, cross-section, color, and markings, with 7-15 day delivery for special high-temperature cables.
Professional Service: Our technical team can conduct on-site surveys, provide “one-plant-one-solution” selection plans, personalized customization, and free samples, ensuring that every degree of high temperature is controllable, reliable, and trustworthy.
On the scorching production lines, we deeply understand that—
A cable is not just a combination of conductor and insulation,
but a commitment to safety, a guardian of efficiency, and a respect for life.
Choose TST CABLE, and let high temperatures no longer be a hidden danger, but the foundation for your confident progress.
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