In which industries are electrical insulation crepe paper tube mainly used

      Electrical Insulation Crepe Paper Tube are mainly used in industries such as power equipment, new energy, rail transportation, electronic appliances, aerospace, etc. due to their high insulation, flexibility, oil resistance, oil immersion, and structural support. The core is to provide insulation isolation and structural support for high-voltage/strong electric field scenarios.

1、 Power equipment industry (core and largest application)

Oil immersed transformer (distribution/power/ultra-high voltage)

      High voltage lead/tap insulation sleeve: It is placed outside the lead to isolate the iron core/winding and guide the flow of insulation oil for heat dissipation.

      Winding skeleton: supports the coil, maintains its shape, and isolates inter turn/interlayer electric fields.

       Tap changer insulation: isolates contacts, suppresses arcing, and reduces partial discharge.

Transformer (Voltage/Current Transformer)

       The insulation skeleton of the primary/secondary winding improves insulation resistance and reduces partial discharge.

       Reactor, arc suppression coil, high voltage switch: insulation isolation between internal leads and windings.

2、 New energy industry

       Wind power/photovoltaic: High voltage insulation and lead protection for wind power converters, photovoltaic inverters, and box type transformers.

       Energy storage system: Insulation support for energy storage inverters (PCS) and high-voltage battery packs.

       New energy vehicles: charging stations, on-board OBC, insulation sleeves for high-voltage wiring harnesses.

3、 Rail Transit Industry

       High speed rail/subway traction transformers, traction converters, high-voltage cabinets: insulation supports that are resistant to vibration and low temperatures (-40 ℃).

4、 Electronic and Electrical Equipment Industry

       Motor/coil: Insulation skeleton for special motors, solenoid valves, and sensor coils.

       Electronic components: Micro wrinkled paper tubes (inner diameter ≤ 5mm) are used for circuit board wiring and chip packaging insulation protection.

Cable/harness: insulation and protection of high-voltage cable joints and special harnesses.

5、 Aerospace and Special Equipment

       Aircraft onboard power supply and spacecraft power supply system: high temperature resistance (200 ℃+), lightweight insulation support.

       Military special power supply and radar equipment: high reliability, radiation resistant insulation components.

6、 Other industrial sectors

       Insulation structural components for electrical equipment, testing instruments, and high-voltage testing devices.