Compensating Asbestos Cable

Thermocouple asbestos wire refers to thermocouple extension or compensating wires that are insulated with asbestos Fiber, which was historically used due to its excellent heat resistance, electrical insulation, and durability in harsh environments. Important Warning Asbestos is a known carcinogen, and its use is now highly restricted or banned in many countries due to serious health risks (e.g., asbestosis, mesothelioma, lung cancer). Most modern applications have replaced asbestos with safer alternatives such as fiberglass, ceramic Fiber, or mineral insulation. Description (for historical or legacy context): Purpose: Used to insulate thermocouple wires for high-temperature applications such as kilns, furnaces, or industrial heaters. Temperature Rating: Typically rated for up to 0°C to 1260°C, depending on the construction. Construction: Conductor: Thermocouple wire (Type K, J, T, etc.). Insulation: Layer(s) of asbestos yarn or braid. Outer Sheath (optional): May include asbestos braid or metal shielding. Applications: High-temperature industrial environments Steel mills, foundries, ceramic kilns Legacy systems (not used in modern builds) Modern Alternatives: Due to health and regulatory concerns, the following materials are now preferred: Fiberglass Insulation Ceramic Fiber Teflon (for lower temperature ranges) Mineral insulated (MI) cables for extreme conditions Summary Table Feature Thermocouple Asbestos Wire Insulation Asbestos Fiber or braid Temperature Range 0°C to 1260°C Conductor Types Type K, J, T, etc. Hazard Health risk due to asbestos exposure Modern Status Obsolete / Banned in most countries