Grounding Shield: Temperature Range -40°C to +90°C

Q: What is the primary function of a grounding shield in cable terminations?

To safely dissipate electrostatic charges and leakage currents to ground, preventing insulation failure and surface tracking.

Q: Can grounding shields be used on all types of high-voltage cables?

No, they must be matched to the cable's voltage rating, diameter, and insulation material for proper performance.

Component Specifications

Definition

A metallic or conductive component installed in high-voltage insulated cable terminations to create an equipotential surface, safely channeling leakage currents and capacitive discharge to ground, thereby preventing dangerous voltage gradients, corona discharge, and insulation breakdown at the termination interface.

Working Principle

Operates by establishing a controlled conductive path between the cable's outer semiconductor layer or metallic sheath and the grounding system. It equalizes electrical potential across the termination surface, suppresses partial discharges, and directs any surface currents safely to earth, maintaining the integrity of the insulation system.

Materials

Typically made from conductive materials such as copper, aluminum, or tin-plated copper alloys, often with a corrosion-resistant coating. May include conductive elastomers or polymers for specific applications. Must have low electrical resistance and good mechanical durability.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Resistance	< 0.1 ohm
Compatibility	Designed for specific cable diameters and insulation types
Voltage Rating	Up to 36 kV or higher as per design
Temperature Range	-40°C to +90°C
Installation Method	Slip-on, clamp, or adhesive-based

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

IEC 60502-2, IEEE 48, DIN VDE 0278-629

Parent Products

This component is used in the following industrial products

High-Voltage Insulated Cable Termination

Electrical termination component for high-voltage cable systems providing insulation and connection.

View Product Details

Engineering Analysis

Risks & Mitigation

Improper installation leading to inadequate grounding
Material degradation over time reducing conductivity
Incompatibility with cable causing electrical stress points

FMEA Triads

Trigger: Corrosion or physical damage to the shield
Failure: Increased resistance leading to overheating or arcing
Mitigation: Use corrosion-resistant materials and regular inspection

Trigger: Incorrect sizing or installation
Failure: Poor contact causing partial discharges
Mitigation: Follow manufacturer specifications and use proper tools

Industrial Ecosystem

Compatible With

High-voltage cable terminations, switchgear, transformers

Typical Suppliers & Equivalents

3M, Raychem, Pfisterer, Nexans

Compliance & Inspection

Tolerance

Dimensional tolerance ±0.5 mm, resistance tolerance ±10%

Test Method

High-potential test, resistance measurement, thermal cycling test per IEC 60502-2

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Grounding Shield

Manufacturer profiles associated with Grounding Shield.

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Frequently Asked Questions

What is the primary function of a grounding shield in cable terminations?