110kV High Voltage Tail Pipe & Flange Assemblies

FEV-110kV High-Voltage Copper Tail Pipe Assembly | Precision Spun T2 Copper Component with 20kN Tensile Validation

Attributes

MaterialT2 High-Purity Copper
Thickness≥1.8mm
CoatingChemical Polishing
SizeØ 130×140

Core Process

Manufactured through precision metal spinning and controlled thick-wall copper forming, this component is engineered to maintain a minimum wall thickness of ≥1.8mm across critical sections.

For T2 copper’s high thermal conductivity and rapid material flow characteristics, forming parameters are optimized to ensure uniform wall distribution, dense grain structure, and defect-free geometry.

The process effectively eliminates common casting-related issues such as shrinkage cavities and gas porosity, making it ideal for high-voltage structural applications.

Precision Control

Dimensional requirements are executed in accordance with GB/T 1804-m general tolerance standards.

For the 12 × Φ14 mounting holes, 100% plug-gauge verification is implemented to ensure accurate positioning and seamless integration with high-voltage bushing assemblies.

Critical concentricity between the Φ200 flange outer diameter and Φ150 cylindrical bore is verified through coordinate measuring systems, maintaining alignment within 0.05mm.

Surface Treatment

A dual-stage finishing process combining chemical polishing and manual surface refinement ensures a smooth, burr-free exterior with R0.5 edge chamfering on all sharp transitions.

The surface is free from scratches, oxidation marks, and visible tool traces, providing an optimal substrate for secondary treatments such as silver plating or protective coating applications.

Material Adaptability

Manufactured from ≥99.9% purity T2 oxygen-free copper, the component delivers exceptionally low electrical resistivity and high thermal conductivity.

This material selection is specifically suited for high-voltage electrical equipment requiring superior current-carrying capacity, heat dissipation efficiency, and long-term operational stability under demanding load conditions.

Technical Specifications

Parameter	Specification
Product Name	FEV-110kV High-Voltage Copper Tail Pipe Assembly
Material	T2 High-Purity Copper (≥99.9% Purity Oxygen-Free Copper)
Application	110kV High-Voltage Electrical Equipment
Forming Process	Precision Metal Spinning & Controlled Thick-Wall Copper Forming
Minimum Wall Thickness	≥1.8mm
General Tolerance Standard	GB/T 1804-m
Dimensional Tolerance	±0.05mm
Concentricity Control	Φ200 Flange OD to Φ150 Bore ≤0.05mm
Mounting Hole Specification	12 × Φ14 Mounting Holes
Inspection Method	100% Plug-Gauge Verification & Coordinate Measurement Inspection
Surface Treatment	Chemical Polishing + Manual Surface Refinement
Edge Treatment	R0.5 Edge Chamfering
Surface Quality	Burr-Free, No Scratches, No Oxidation Marks, No Visible Tool Traces
Secondary Finish Compatibility	Suitable for Silver Plating & Protective Coatings
Tensile Validation	20kN
Key Material Characteristics	High Electrical Conductivity, High Thermal Conductivity, Low Electrical Resistivity
Key Advantages	Defect-Free Structure, Uniform Wall Thickness, Dense Grain Structure
Typical Application	High-Voltage Bushing & Electrical Conductor Assemblies