行业组件数据 · 2026

接地汇流排

A grounding busbar is a conductive metal bar used in high voltage test chambers to provide a common grounding point for electrical safety and equipment protection.

技术定义与适配语境
典型 接地汇流排 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。

A grounding busbar is a critical safety component in high voltage test chambers, typically made of highly conductive copper or aluminum alloy. It serves as a central connection point where all grounding conductors from the chamber's electrical system, test specimens, and safety equipment are terminated. This component ensures equipotential bonding, dissipates fault currents, and provides a low-impedance path to earth, preventing dangerous voltage buildup and protecting both equipment and personnel during high voltage testing operations.

组件规格

定义
A grounding busbar is a critical safety component in high voltage test chambers, typically made of highly conductive copper or aluminum alloy. It serves as a central connection point where all grounding conductors from the chamber's electrical system, test specimens, and safety equipment are terminated. This component ensures equipotential bonding, dissipates fault currents, and provides a low-impedance path to earth, preventing dangerous voltage buildup and protecting both equipment and personnel during high voltage testing operations.
工作原理
The grounding busbar operates on the principle of equipotential bonding and fault current dissipation. During normal operation, it maintains all connected components at the same electrical potential (typically earth potential). In the event of a fault or insulation failure, it provides a low-resistance path for fault currents to flow safely to ground, triggering protective devices like circuit breakers and preventing hazardous touch voltages. Its design ensures minimal impedance to facilitate rapid current discharge.
材料
High-conductivity copper (C11000 or equivalent99.9% purity) or aluminum alloy (6061-T6)with electro-tin or silver plating for corrosion resistance and improved conductivity. Insulating supports made of glass-reinforced epoxy or ceramic.
Mounting
Insulated standoffs with creepage distance ≥ 100mm/kV
Conductivity
≥ 98% IACS (copper)
Cross-section
Rectangular bars: 50mm x 10mm to 100mm x 20mm
Current Rating
Typically 1000A to 5000A depending on chamber size
Voltage Rating
Rated for system voltage + safety margin (e.g., 10kV for 6kV systems)
Connection Points
4 to 20 threaded holes (M8 to M12) with serrated washers
Temperature Range
-40°C to +105°C
标准
ISO 3864-1IEC 60417DIN EN 60204-1IEEE 80

行业分类与别名

接地汇流排 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

Loose connection bolts due to thermal cycling or vibration->Increased contact resistance leading to overheating and potential arcing->Use spring washers, regular torque checks (e.g., 25 Nm for M10), and apply antioxidant compound
Corrosion from humidity or chemical exposure->Reduced conductivity and increased impedance, compromising grounding effectiveness->Apply protective plating (tin/silver), use in controlled environments, and implement regular cleaning with conductive grease

工业生态与工程逻辑

0
Electrical shock due to poor connections
1
Overheating from insufficient cross-section
2
Corrosion reducing conductivity
3
Mechanical damage from vibration

合规与检测

tolerance
Resistance between any two points on busbar ≤ 0.1 mΩ, flatness tolerance ±0.5mm over 1m length
test method
Four-wire micro-ohmmeter measurement per IEEE 837, visual inspection for corrosion/damage, thermal imaging under load

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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

Why is a grounding busbar essential in high voltage test chambers?

It prevents dangerous voltage differences, ensures operator safety by dissipating fault currents, and protects sensitive test equipment from electrical damage during high voltage insulation tests.

How often should grounding busbars be inspected?

Visual inspections should be performed monthly, with detailed resistance testing (using micro-ohmmeter) and torque checks on connections annually, or per manufacturer's maintenance schedule.

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URN:CNFX:ME:UNIT:GROUNDING_BUSBAR