What is Dielectric Strength?

Dielectric strength refers back to the most voltage an insulating fabric can undergo earlier than it breaks down and lets in electrical cutting-edge to pass via. It is measured in kilovolts according to millimeter (kV/mm) and is a crucial property for materials utilized in electrical and electronic packages.

Key Formula

Dielectric Strength=Breakdown VoltageMaterial ThicknessDielectric Strength = fracBreakdown VoltageMaterial ThicknessDielectric Strength=Material ThicknessBreakdown Voltage​

Where:

• Breakdown Voltage (V): The voltage at which the fabric fails
• Material Thickness (mm): The thickness of the insulating sample

A better dielectric energy shows a better insulating fabric able to withstanding higher voltages without failure.

Why is Dielectric Strength Testing Important?

1. Electrical Safety & Compliance

• Prevents electrical screw ups, quick circuits, and breakdowns
• Ensures compliance with IEC, ASTM, IS, and UL protection standards

2. Quality Control & Product Certification

• Confirms the insulation overall performance of substances like plastics, rubber, and coatings
• Guarantees excessive-voltage patience for customer electronics, transformers, and switchgear

3. Industrial Applications & Reliability

• Essential for industries together with power era, electronics, automobile, aerospace, and scientific gadgets
• Helps manufacturers pick the nice insulating materials for excessive-voltage packages

How is Dielectric Strength Testing Performed?

At KIYO R&D Center & Laboratory in Chennai, we conduct dielectric electricity tests the use of superior checking out equipment to ensure specific and accurate consequences.

Step-by using-Step Testing Process

Sample Preparation

• The insulating fabric is reduce into standardized take a look at samples.

Test Setup in Dielectric Testing Equipment

• The sample is placed among electrodes in a managed environment.

Voltage Application

• A gradually growing AC or DC voltage is applied to the material.

Breakdown Detection

• The check continues until the cloth breaks down, allowing modern to skip.

Recording & Analysis

• The breakdown voltage is recorded, and the dielectric energy is calculated.

International Standards for Dielectric Strength Testing

Our tests observe enterprise-identified standards together with:

✔ ASTM D149 – Dielectric breakdown voltage checking out for electrical insulation substances

✔ IEC 60243 – Standard for trying out the dielectric electricity of strong insulating substances

✔ UL 746A – Testing polymeric substances utilized in electrical programs

Industries That Require Dielectric Strength Testing

1. Electrical & Electronics Industry

• Ensuring insulation integrity for cables, wires, PCB coatings, and transformers

2. Automotive & Aerospace Sector

• Testing high-voltage EV batteries, ignition systems, and plane wiring

3. Power & Energy Industry

• Ensuring the sturdiness of circuit breakers, insulators, and switchgear

4. Plastics & Polymer Manufacturing

• Evaluating the insulating houses of PVC, rubber, and composite materials

5. Medical & Consumer Electronics

• Verifying insulation protection in clinical-grade plastics, chargers, and electricity adapters

Where to Get Dielectric Strength Testing in Chennai?

If you’re seeking out a depended on dielectric energy trying out provider in Chennai, KIYO R&D Center & Laboratory gives:

✅ State-of-the-artwork trying out system

✅ ISO-licensed and enterprise-widespread checking out tactics

✅ Detailed check reports for compliance & certification

✅ Expert analysis for cloth improvement

We offer dielectric energy trying out for plastics, rubber, coatings, electrical components, and insulating materials, making sure compliance with global protection standards.