行业组件数据 · 2026

不锈钢端盖

Stainless steel end caps for vacuum circuit breaker arc chutes providing electrical insulation and mechanical protection.

技术定义与适配语境
典型 不锈钢端盖 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

Precision-engineered stainless steel end caps designed specifically for medium voltage vacuum circuit breaker arc chute assemblies. These components serve as terminal enclosures that provide critical electrical insulation between arc chute components and the breaker housing, while also offering mechanical protection against arc byproducts and environmental contaminants. They maintain dielectric integrity under high voltage conditions and thermal cycling.

组件规格

定义
Precision-engineered stainless steel end caps designed specifically for medium voltage vacuum circuit breaker arc chute assemblies. These components serve as terminal enclosures that provide critical electrical insulation between arc chute components and the breaker housing, while also offering mechanical protection against arc byproducts and environmental contaminants. They maintain dielectric integrity under high voltage conditions and thermal cycling.
工作原理
The end caps function as insulating barriers that prevent electrical arcing between the arc chute assembly and grounded components. During circuit breaker operation, they contain arc byproducts within the chute assembly while maintaining proper creepage and clearance distances to prevent flashover. Their design ensures uniform electric field distribution and thermal dissipation.
材料
Austenitic stainless steel (typically 304 or 316 grade)with dielectric coating or ceramic inserts for enhanced insulation properties. Material specifications include: corrosion resistance >1000 hours salt spray testdielectric strength >15 kV/mmthermal conductivity 16-21 W/m·Koperating temperature range -40°C to +200°C.
Weight
0.2-1.5 kg
Diameter
50-150 mm (depending on breaker rating)
IP Rating
IP54 minimum
Thickness
2-5 mm
Surface Finish
Ra ≤ 0.8 μm
Creepage Distance
≥ 25 mm/kV
Clearance Distance
≥ 15 mm/kV
Dielectric Strength
≥ 20 kV
标准
ISO 14617-2DIN EN 62271-100IEC 62271-1ASTM A240

行业分类与别名

不锈钢端盖 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Surface contamination accumulation->Reduced dielectric strength leading to flashover->Regular cleaning schedules, hydrophobic coatings, proper sealing
Thermal cycling stress->Micro-cracking in dielectric coatings->Thermal stress analysis in design, use of flexible coatings, controlled expansion materials
Galvanic corrosion->Material degradation and loss of mechanical integrity->Proper material selection, isolation from dissimilar metals, protective coatings

工业生态与工程逻辑

0
Electrical flashover due to contamination
1
Corrosion in harsh environments
2
Thermal stress cracking
3
Improper installation causing insulation failure
4
Compatibility issues with non-standard components

合规与检测

tolerance
±0.1 mm dimensional tolerance, ±0.05 mm flatness, surface roughness Ra ≤ 0.8 μm
test method
Dielectric withstand test per IEC 62271-1, salt spray corrosion test per ISO 9227, thermal cycling test per IEC 60068-2-14, dimensional verification with CMM

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the primary function of stainless steel end caps in vacuum circuit breakers?

The primary function is to provide electrical insulation between the arc chute assembly and the breaker housing while containing arc byproducts and protecting internal components from environmental contaminants.

Can these end caps be used with different vacuum circuit breaker models?

End caps are typically designed for specific breaker models and ratings due to dimensional and electrical requirements. Always verify compatibility with manufacturer specifications before substitution.

What maintenance is required for stainless steel end caps?

Regular visual inspection for corrosion, coating damage, or contamination. Cleaning with non-abrasive methods and dielectric testing during routine maintenance intervals.

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CNFX Industrial Component Index · 电气设备制造

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初步技术归类
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请求制造能力信息: 不锈钢端盖

说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

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URN:CNFX:ME:UNIT:STAINLESS_STEEL_END_CAPS