INDUSTRY COMPONENT

Insulation/Isolation Layer

Electrical insulation layer for current sensing elements that prevents leakage currents and ensures measurement accuracy.

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Component Specifications

Definition
A specialized dielectric component in current sensing devices that electrically isolates the sensing element from surrounding conductive parts, preventing stray currents, reducing electromagnetic interference, and maintaining signal integrity in measurement circuits.
Working Principle
Works by providing high electrical resistance and dielectric strength between the current-carrying conductor and the sensing element, blocking unwanted current flow while allowing magnetic or electric fields to pass for accurate current measurement.
Materials
Polyimide film, epoxy resin composites, ceramic substrates, silicone rubber, or PTFE-based materials with dielectric strength >5kV/mm, thermal conductivity 0.2-1.5 W/m·K, and operating temperature range -40°C to 200°C.
Technical Parameters
  • CTI >600 V
  • Dielectric Strength >5 kV/mm
  • Thickness Tolerance ±0.05 mm
  • Thermal Conductivity 0.2-1.5 W/m·K
  • Insulation Resistance >10^12 Ω
  • Operating Temperature -40°C to 200°C
Standards
IEC 60664-1, UL 94, ISO 6722

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Insulation/Isolation Layer.

electrical insulation current sensor isolation dielectric layer sensing element protection EMI shielding Insulation/Isolation Layer Insulation/Isolation Layer in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Current Sensing Element

A component that detects and converts electrical current into a measurable signal within a current sensor circuit.

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Engineering Analysis

Risks & Mitigation
  • Dielectric breakdown under high voltage
  • Thermal degradation at elevated temperatures
  • Moisture absorption reducing insulation resistance
FMEA Triads
Trigger: Material contamination during manufacturing
Failure: Reduced dielectric strength leading to electrical shorts
Mitigation: Implement cleanroom assembly and material purity testing
Trigger: Thermal cycling stress
Failure: Cracking/delamination causing insulation failure
Mitigation: Use materials with matched CTE and thermal stress testing

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm thickness, ±5% dielectric constant
Test Method
Hi-pot testing per IEC 60664-1, insulation resistance measurement per ASTM D257

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of an insulation layer in current sensing?

To prevent electrical leakage between the current conductor and sensing circuitry, ensuring accurate current measurement and operator safety.

How does insulation material affect current sensor performance?

Material properties determine dielectric strength, thermal stability, and EMI resistance, directly impacting measurement accuracy and long-term reliability.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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