Ground Electrode: Temperature Range -40°C to 200°C

Component Specifications

Definition

A ground electrode is an essential safety component in electrical systems, specifically within igniters, designed to establish a low-resistance connection to the earth. It functions by providing a controlled path for fault currents, static electricity, or transient voltages to safely discharge into the ground, thereby protecting equipment and personnel from electric shock, fire hazards, and electromagnetic interference. In igniters, it ensures stable operation by preventing voltage buildup that could disrupt spark generation.

Working Principle

The ground electrode operates on the principle of electrical grounding, where it creates a conductive path between the electrical system and the earth. When excess current or voltage occurs, it flows through this low-resistance path to the ground, neutralizing potential differences and maintaining system safety. In igniters, it works in conjunction with the spark electrode to complete the circuit for spark generation, ensuring reliable ignition by dissipating any residual charge.

Materials

Typically made from corrosion-resistant, high-conductivity materials such as copper alloys (e.g., brass or bronze), stainless steel (e.g., 304 or 316 grades), or nickel-plated steel. Materials are selected based on durability, electrical conductivity, and environmental resistance to factors like moisture and heat.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	50-200 mm
Diameter	2-10 mm
Resistance	< 25 ohms
Conductivity	> 58 MS/m for copper alloys
Temperature Range	-40°C to 200°C

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

Standards

ISO 3864, DIN 18014

Parent Products

This component is used in the following industrial products

Igniter

A device that initiates combustion in a gas turbine combustion chamber by generating a high-energy spark or flame.

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Engineering Analysis

Risks & Mitigation

Electrical shock due to poor grounding
Corrosion leading to increased resistance
Mechanical damage from impact or vibration

FMEA Triads

Trigger: Corrosion from moisture or chemicals
Failure: Increased electrical resistance, leading to ineffective grounding and potential system failure
Mitigation: Use corrosion-resistant materials like stainless steel, apply protective coatings, and conduct regular maintenance checks

Trigger: Loose connections or improper installation
Failure: Intermittent grounding, causing electrical hazards or igniter malfunction
Mitigation: Follow torque specifications during installation, use secure fasteners, and perform periodic inspections

Industrial Ecosystem

Compatible With

Igniters in combustion systems, gas appliances, industrial burners

Typical Suppliers & Equivalents

Bosch, NGK, Denso, Champion

Compliance & Inspection

Tolerance

Resistance tolerance within ±10% of specified value, dimensional tolerance per ISO 2768-m

Test Method

Resistance testing using a ground resistance tester, visual inspection for defects, and continuity checks with a multimeter

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 Ground Electrode

Manufacturer profiles associated with Ground Electrode.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a ground electrode in an igniter?

The ground electrode provides a safe path for electrical current to discharge into the earth, preventing electric shock, fire risks, and ensuring reliable spark generation by stabilizing the electrical circuit.

How often should ground electrodes be inspected or replaced?

Inspect ground electrodes annually for corrosion, damage, or wear; replace if resistance exceeds 25 ohms or if physical degradation is observed, typically every 2-5 years depending on environmental conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Ground Electrode