Views: 0 Author: Site Editor Publish Time: 2026-10-30 Origin: Site
With the rapid rollout of large models and computing clusters, the power density of AI servers keeps rising. Power bays, rectifier modules and board areas are exposed to sustained high temperatures. Ordinary PVC cables suffer from poor heat resistance; they tend to harden and age, with insulation failure under high heat. This may trigger computing throttling, service interruptions, or even safety hazards. The seemingly inconspicuous connecting cables inside the cabinet are critical to stable computing operation.
Many engineers wonder how to pick signal wires, auxiliary power cables and module jumpers for high-temperature, compact computing equipment. Fongming UL3132 silicone rubber wire is tailor-made for internal wiring of AI computing hardware. Adopting platinum-cured silicone rubber insulation, it delivers outstanding comprehensive performance for high-temperature and tight-space wiring scenarios.
Fongming UL3132 is an AWM silicone wire under American standards, rated 300V with a long-term temperature resistance of 150°C. Its operating temperature range is -60°C ~ 150°C. It complies with UL758 and UL1581 standards and features VW-1 flame retardancy. It is designed for low-voltage internal circuits of computing devices, NOT suitable for high-voltage main circuits.
Typical application spots:
Jumpers for rectifier modules & sampling signal wires
Fan power cables and auxiliary power harnesses for circuit boards
Wiring close to heat sinks and power components
Internal harnesses for server power assemblies
Selection note: Choose higher-spec cables if the circuit voltage exceeds 300V or sustained hot-spot temperature exceeds 150°C.
Heat & Aging Resistance, Stable in Temperature Cycles Made of platinum-cured silicone rubber insulation. It resists powdering, oil bleeding and tackiness under high heat, and stays flexible instead of cracking at low temperatures. It handles frequent temperature swings from server startup and shutdown, with slow insulation degradation under long-term high-temperature working conditions.
Stable Current Carrying, Reliable Conductors Multi-strand tinned copper conductors offer excellent conductivity and oxidation resistance. For the same AWG gauge, silicone insulation brings a smaller outer diameter for easier routing inside narrow cabinets and better space utilization. Recommended wire gauges by use case: 18~24AWG for signal and low-power circuits; 14~16AWG for auxiliary power jumpers; 6~12AWG for short-distance high-current wiring. Current derating must be considered when cables are bundled and enclosed.
High Flexibility & Fatigue Resistance, Easy for Assembly Soft silicone material supports a small bending radius. It resists core breakage after repeated bending, ideal for multi-turn routing in power bays. It improves harness assembly and plug-in efficiency and reduces rework during mass production.
Flame Retardant & Compliant, Ideal for Export Projects Fully certified with UL AWM, traceable marking and VW-1 vertical flame resistance, which helps pass North American equipment safety audits. Conductor options: tinned copper / nickel-plated copper. Insulation colors include red, black, yellow, green, blue, white and brown for easy circuit identification and maintenance.
Tear-Resistant Insulation & Consistent Quality Uniform insulation thickness with strong tear resistance. Superior to low-cost silicone cables with adulterated rubber in the market, delivering stable batch-to-batch performance.
As a specialized cable manufacturer, Fongming Cable meets the mass production demands of server manufacturers and harness factories. We supply full AWG range, custom cut-to-length cables and supporting harness services. Every batch undergoes sampling tests for electrical performance, flame resistance and heat resistance. Complete certificates and documentation are available to support equipment safety certification tests, and customized formulations and structures are offered upon request.
The reliability of computing clusters lies in every detail of wiring. For low-voltage, high-temperature and space-limited internal wiring of AI servers, Fongming UL3132 silicone wire is the preferred solution balancing safety compliance, flexible routing and long-term heat resistance.
In the computing era, stability comes from details. Fongming Cable keeps supplying high-temperature special cable solutions for computing centers and hardware manufacturers, powering stable AI computing with reliable cables.
