When electrical equipment operates in a humid or contaminated environment, the surface of an insulating material can become more than just a protective layer. Moisture, dust, and other contaminants may create conditions that allow electrical current to travel across the material surface. Over time, this can lead to tracking damage, insulation failure, or other electrical safety concerns. For manufacturers working with plastic parts, electrical connectors, switches, and insulating components, understanding this risk is an important part of product development.

At Guangzhou Chuangge Automation Equipment Co., Ltd., we provide customized testing equipment for manufacturers, research laboratories, and quality inspection organizations. Our Tracking Index Tester is designed to support the evaluation of the electrical tracking resistance of solid insulating materials under defined test conditions. It helps users investigate how material surfaces respond to electrical stress and controlled exposure to a contaminating liquid, providing useful information for material comparison, quality control, and product verification.

We know that choosing a tracking index tester is not simply a matter of comparing machine prices or looking at a product photograph. Buyers need to understand the test method, sample requirements, electrical parameters, control functions, safety arrangements, and documentation supplied with the equipment. They also need to know whether the proposed configuration supports the applicable standard and their actual laboratory workflow.

That is why we approach each customization request by discussing the intended application first. We review the test requirements, sample information, and necessary functions before confirming the equipment configuration. Our goal is to provide a practical testing solution that fits the customer's requirements and supports a clear, repeatable test process.

1. What Is a Tracking Index Tester and Why Does It Matter?

Understanding electrical tracking in simple terms

Electrical insulation is used to keep current flowing along its intended path rather than through unwanted areas. Many electrical and electronic products rely on insulating materials made from plastics, resins, and other non-conductive substances. Under normal conditions, these materials help separate conductive parts and reduce the risk of electrical faults.

However, an insulating surface may be exposed to moisture, dust, residues, or other contamination during service. When electrical stress is present, these conditions can contribute to the formation of a conductive path across the surface or within the material. This process is known as electrical tracking. If the conductive path develops far enough to connect conductive parts, the insulation may fail.

A Tracking Index Tester is used to evaluate how a solid insulating material responds to a defined test involving electrical voltage and drops of a specified test liquid. During the procedure, the liquid is applied to the specimen at prescribed intervals while the electrical conditions are controlled. The test method defines how the material is assessed and what constitutes a failure.

The results help engineers compare materials and understand their behavior under the particular test conditions. This is especially useful when choosing insulating plastics for electrical components, household appliances, connectors, switches, and other products where surface insulation performance matters.

What are CTI and PTI?

Two important terms associated with tracking resistance testing are Comparative Tracking Index (CTI) and Proof Tracking Index (PTI). They are related, but they do not describe exactly the same test objective.

The Comparative Tracking Index is mainly used to characterize and compare the tracking properties of solid insulating materials. It is determined through a defined test procedure involving specified test conditions and a sequence of evaluations. The result is expressed as a voltage value under the applicable method; it should not be confused with the normal operating voltage of a finished electrical product.

The Proof Tracking Index is used to assess whether a material withstands a specified proof voltage under the defined test conditions. It can be used as an acceptance criterion and for quality control when the relevant product specification requires it.

For customers purchasing a CTI tester or PTI tracking resistance tester, this distinction is worth confirming before placing an order. The equipment configuration, test procedure, and reporting requirements should match the intended measurement. We recommend specifying whether your application requires CTI determination, PTI testing, or both.

The main international reference for these methods is IEC 60112, Method for the determination of the proof and the comparative tracking indices of solid insulating materials. The current IEC publication is IEC 60112:2025, which describes methods for determining the proof and comparative tracking indices of solid insulating materials and includes a procedure for evaluating erosion when required. The exact edition required for a particular project should be confirmed against the relevant product standard or customer specification.

Official reference: IEC 60112:2025 – International Electrotechnical Commission.

What can a tracking index test tell you?

A tracking resistance test provides information about how a specimen behaves when electrical stress and a specified contaminating liquid act together on its surface. Depending on the procedure, the observations may include whether a conductive tracking path forms, whether an overcurrent device operates, whether a persistent flame occurs, and whether erosion affects the specimen.

These findings can help material engineers compare candidate insulating materials and investigate potential weaknesses. For example, two plastic materials may look similar and have comparable mechanical properties, yet behave differently during a tracking test. Testing provides a defined way to examine this difference rather than relying on appearance or assumptions alone.

We also encourage customers to understand the limits of the results. A CTI or PTI value is not a universal rating of every electrical property of a material. It does not replace dielectric strength testing, insulation resistance measurements, thermal evaluation, or the safety assessment of a complete electrical product. Each test answers a different question.

2. Working Principle and Typical Testing Procedure

How the tracking resistance test works

The basic principle is relatively easy to understand. A test specimen is placed in the specified position, electrodes are arranged according to the applicable method, and a defined voltage is applied. Drops of the prescribed test liquid are then delivered onto the specimen surface at controlled intervals. The electrical and surface conditions are observed throughout the test.

The liquid helps create a controlled contamination condition. As the drops contact the surface, the electrical response of the material is evaluated. Under the defined conditions, the material may withstand the test, or a conductive path may develop and cause tracking failure. The method establishes how the result is recorded and how the CTI or PTI value is determined.

For a CTI test, the evaluation involves more than a single observation at an arbitrary voltage. IEC 60112 specifies a structured procedure using test specimens and a defined number of drops. The determination considers the voltage at which the specimens withstand the specified test period without tracking failure and without a persistent flame, together with additional checks defined by the method.

The exact procedure must be taken from the applicable edition of the standard. Operators should not replace the specified drop interval, test liquid, specimen preparation, electrode arrangement, or failure criteria with convenient alternatives. Changing these conditions can affect the meaning and comparability of the results.

A typical test workflow

1. Confirm the test standard. Identify the required edition of IEC 60112 or the applicable product-specific requirement. Confirm whether the objective is CTI determination, PTI testing, or another defined assessment.

2. Prepare the specimen. Check the required dimensions, surface condition, conditioning procedure, and specimen quantity. Prepare samples according to the method rather than using arbitrary dimensions or preparation steps.

3. Set up the electrodes. Install the specified electrodes and confirm their position and condition. Electrode material, geometry, and contact arrangement must follow the relevant test procedure.

4. Prepare the test liquid. Use the specified solution and water quality. The concentration and preparation method matter because they can influence the test conditions.

5. Configure the electrical and liquid delivery functions. Set the required voltage and drop application conditions according to the test procedure and the equipment instructions.

6. Run the test. Apply the defined voltage and deliver the test liquid at the required intervals. Monitor the specimen response and the equipment throughout the procedure.

7. Record observations. Record the relevant test conditions and any tracking failure, persistent flame, or erosion behavior required by the method.

8. Determine and report the result. Apply the standard's calculation and acceptance rules. Include the relevant specimen information, test conditions, and observations in the test record.

This list is a general overview, not a substitute for the complete standard or the equipment operating instructions. The exact procedure, number of specimens, voltage sequence, test duration, and criteria depend on the applicable method and purpose of the test.

Why voltage and drop control matter

In tracking resistance testing, the voltage and liquid application conditions are important parts of the test severity. If the voltage is not correctly controlled, or the drops are delivered inconsistently, the test may no longer represent the intended procedure. A result obtained under incorrect conditions may be difficult to compare with results from another laboratory or another material batch.

For this reason, buyers should confirm the required voltage range, control method, drop application settings, and any necessary verification functions before purchasing a tracking index tester. The values needed depend on the applicable standard and the equipment configuration. We avoid assuming that one set of parameters is suitable for every customer or every test.

It is also important to distinguish the voltage used during a CTI test from the operating voltage of the final product. The IEC method evaluates a defined material response under laboratory conditions. The resulting CTI value should not be used by itself to determine safe creepage distances or to declare that a complete electrical device is safe for a particular operating voltage.

3. Main Features and Equipment Configuration Considerations

Designed around the customer's test requirements

At Guangzhou Chuangge Automation Equipment Co., Ltd., we focus on customized testing equipment. We understand that a laboratory may have specific requirements for sample dimensions, control functions, observation, documentation, and integration into an existing testing process. These details should be considered before the equipment configuration is finalized.

For a Tracking Index Tester, the required configuration may involve the electrode assembly, specimen support, voltage control, liquid drop delivery, timing functions, test chamber, protective measures, and result recording workflow. The actual scope depends on the customer's application and the functions agreed for the order. Buyers should request a clear list of included components rather than assuming every accessory is standard.

We begin by clarifying the test method and intended use. If a customer needs to test a particular material or component, we review the available sample information and the required procedure. This helps us understand which functions need to be included and whether any project-specific fixture or arrangement should be discussed.

Important points to check before purchase

Voltage control: Confirm the required test voltage range, adjustment method, monitoring functions, and any verification requirements specified by the test method. The proposed range should be checked against the customer's intended application.

Drop application system: The liquid delivery system must support the required test liquid and application interval. Buyers should confirm the relevant adjustment range, delivery consistency, and maintenance requirements for their intended procedure.

Electrode arrangement: Electrode material, shape, dimensions, spacing, and installation can affect the test setup. Confirm that the proposed assembly supports the applicable standard and the specimens to be tested.

Specimen holder: The specimen support should allow samples to be positioned as required. If the laboratory tests different specimen sizes or material forms, provide those details during technical discussions.

Observation and safety: Electrical testing and liquid handling require suitable protective measures. The laboratory should consider access to the test area, operator protection, electrical isolation, cleaning, and the handling of used test liquid according to its safety procedures.

Documentation: Confirm which operating instructions and technical documents will be supplied. If your laboratory requires specific formats, equipment identification details, or additional project documentation, include these needs in the initial specification.

Comparison table: CTI and PTI testing

CTI and PTI are closely related tracking resistance measurements, but their objectives differ. This distinction is useful when specifying a tracking index tester and planning the test report.

Source: IEC 60112:2025, Method for the determination of the proof and the comparative tracking indices of solid insulating materials. The standard describes the purpose and method for both indices. Official reference: IEC Webstore – IEC 60112:2025.

Customization without changing the test method

Customization should make the equipment better suited to the laboratory, not undermine the validity of the test. A sample holder may need to suit a particular specimen format, for example, but the final arrangement must still comply with the relevant procedure. Similarly, an operator interface may be adapted to the agreed workflow, but the essential test conditions and result criteria must remain aligned with the selected standard.

We encourage customers to share sample drawings, photographs, specimen dimensions, and the relevant standard before requesting a quotation. These details help us understand the intended application and discuss the equipment scope more clearly. If the testing requirement is still being finalized, we can identify the information that needs to be confirmed before manufacturing begins.

4. Technical Advantages and Material Selection Applications

Supporting informed material selection

Material selection for electrical products is rarely based on one property alone. Engineers may need to consider electrical insulation, heat resistance, mechanical strength, environmental conditions, processing requirements, cost, and long-term stability. Tracking resistance is one factor in this broader decision.

A tracking index test helps engineers compare candidate insulating materials using a defined method. If two materials are intended for a similar application, the test results can provide additional information about their response to surface contamination and electrical stress. This information can support material screening, supplier evaluation, and design review.

However, a higher CTI value does not automatically mean a material is better for every application. A material with good tracking resistance may have other limitations, such as unsuitable thermal behavior or mechanical properties. Engineers should evaluate the full set of requirements for the product rather than selecting a material based on CTI alone.

Supporting quality control

For manufacturers, quality control is not just about checking whether a product looks correct. Material properties can affect product behavior even when two batches appear identical. Where tracking resistance is a specified requirement, a defined testing procedure can help compare incoming materials, investigate variation, and verify whether selected samples meet the relevant acceptance criteria.

A useful quality program also needs consistent sample preparation, suitable equipment operation, clear records, and traceability. The test result should be associated with the correct material identification, batch information, specimen preparation, and test conditions. If an unexpected result appears, these records help the team investigate whether the cause may be related to the material, preparation, test setup, or another factor.

We design our equipment proposals around the customer's stated application and testing workflow. During the technical discussion, we can review the required functions and documentation so that the proposed configuration supports the intended quality inspection process.

Comparison table: tracking resistance and other electrical material tests

Different electrical tests assess different material properties. The following table provides a practical comparison to help buyers identify whether a tracking index tester is the right equipment for their testing objective.

Sources: IEC 60112:2025 for tracking index testing; IEC 60243-1 for electrical strength of insulating materials. The appropriate method depends on the material, product, and test objective. Official IEC reference for tracking resistance: IEC 60112:2025.

Why test conditions need to be documented

A test result is much more useful when the conditions behind it are clear. The material grade, specimen preparation, test liquid, electrode arrangement, applied voltage, and other relevant conditions can influence the outcome. When comparing data from different laboratories or different dates, it is important to establish that the methods and conditions are sufficiently comparable.

We recommend that customers define the reporting requirements before testing begins. At a minimum, the laboratory should follow the applicable standard's requirements for recording the specimen, procedure, observations, and result. If the test supports a customer audit, material qualification, or product verification project, the required traceability information should be included in the agreed documentation process.

5. Industries and Products That May Require a Tracking Index Tester

Electrical switches, connectors, and terminals

Electrical switches, connectors, terminal blocks, and related components often use insulating parts to separate conductive elements. Depending on the product design and applicable requirements, manufacturers may need to assess the tracking resistance of these insulating materials. Testing can provide useful data when comparing materials or verifying specified requirements.

For these applications, buyers should identify the actual component material and the relevant product standard. A complete connector or switch may have multiple material types, and not every part necessarily requires the same test. Clear sample identification helps ensure that the selected specimen represents the intended material or component.

Household appliances and consumer electronics

Household appliances and electronic devices contain housings, internal supports, connectors, circuit-related parts, and other insulating components. These parts can differ in size, thickness, and operating environment. Where the applicable standard calls for tracking resistance evaluation, a tracking index tester can support material qualification and product development.

For a product engineering team, the test is most useful when it is tied to a specific design question. The team may be comparing alternative plastics, checking a new material supplier, or investigating a change in a component specification. The test result should be considered alongside other required electrical, thermal, and mechanical evaluations.

Electrical engineering and industrial equipment

Industrial electrical equipment may include insulating barriers, supports, housings, and other components exposed to electrical stress. In some applications, the material's resistance to tracking is one consideration in the overall insulation design. Testing helps provide material information under a defined laboratory method.

It is important not to use the CTI value as the only basis for electrical clearance or creepage distance design. Those design decisions depend on the applicable equipment standard and other factors, including the working voltage, environment, insulation system, and product construction. The tracking index test provides material data, not a complete design approval.

Plastic material manufacturers and compound suppliers

Plastic compound producers may need to characterize materials intended for electrical applications. Tracking resistance data can be useful when comparing formulations, supporting technical data sheets, or responding to customer material requirements. A consistent test procedure helps make the results more meaningful for internal comparisons and customer discussions.

For material suppliers, specimen preparation and material identification are especially important. Test results should be linked to the correct formulation and batch. If a material changes due to a new additive, filler, pigment, or manufacturing process, the supplier may need to determine whether additional evaluation is appropriate under its quality plan or customer requirements.

Research laboratories and third-party inspection organizations

Research laboratories may use tracking resistance testing to study material behavior, compare candidate formulations, or support product development. Third-party inspection organizations may perform tests according to customer requirements and relevant standards. These users often need a clearly defined testing workflow and reliable records.

When laboratories handle multiple sample types, equipment selection should consider the specimen range, control requirements, test frequency, safety arrangements, and documentation process. We discuss these factors with customers before confirming the proposed configuration, helping them focus on functions that support their actual work.

6. Manufacturing, Quality Inspection, and Delivery Process

Technical review before manufacturing

At Guangzhou Chuangge Automation Equipment Co., Ltd., we start customized equipment projects by understanding the customer's application. For a Tracking Index Tester, this means identifying the intended test method, required electrical parameters, sample format, control functions, and any project-specific requirements.

We then review the proposed configuration and clarify the supply scope. This stage is important because buyers may have different expectations regarding accessories, control functions, technical documents, or acceptance checks. Confirming these details in advance helps reduce misunderstandings during manufacturing and delivery.

Where a customer provides a technical drawing, sample photograph, or test procedure, we can use that information to better understand the application. If a key requirement remains unclear, it should be resolved before the design and manufacturing plan are finalized.

Production schedule

Our typical production cycle for testing equipment is approximately 30 to 60 days, depending on the equipment specifications and customization requirements. The actual lead time should be confirmed after the technical scope and order details have been reviewed.

Customized testing equipment may require different components, control arrangements, fixtures, and documentation depending on the project. For this reason, we avoid promising the same lead time for every configuration. A clear specification and timely confirmation of project details help us establish a more realistic schedule.

Functional inspection and performance verification

Before delivery, each unit undergoes functional inspection and performance verification. These checks are intended to confirm that the equipment operates according to the agreed configuration and to identify issues that should be addressed before shipment.

The exact inspection items depend on the supplied equipment and the technical requirements confirmed for the project. For a tracking index tester, buyers should clarify which functions and acceptance checks are included. If the project requires particular verification records or additional checks, these should be agreed before production rather than assumed to be part of every order.

We provide operating instructions and technical documentation as agreed. These documents help the customer understand the supplied equipment and support setup and routine operation. If a laboratory requires additional documentation or specific formats for internal quality procedures, the requirement should be discussed during the quotation stage.

Packaging and transportation

Testing equipment may contain electrical components, precision assemblies, control elements, and accessories that need protection during transportation. We use suitable protective materials and sturdy wooden cases according to the equipment and shipping requirements. Packaging details are considered with the destination, shipping method, and handling conditions in mind.

We can discuss sea, air, or land transportation depending on the destination and delivery schedule. The appropriate method depends on the shipment's size, weight, cost, urgency, and local import arrangements. International buyers should confirm the delivery address, consignee information, customs documentation, and any special handling requirements before shipment.

Payment and order coordination

Payment terms are negotiable and should be confirmed in the quotation or sales agreement. For customized equipment, the commercial agreement should clearly state the technical configuration, included accessories, production lead time, inspection requirements, documentation, packaging, and shipping responsibilities.

We encourage buyers to review the final specification carefully before confirming the order. Clear communication at this stage helps both sides understand what will be supplied and how the finished equipment will be checked. It also gives the project team a shared reference for manufacturing, inspection, and delivery.

7. Why Choose Guangzhou Chuangge Automation Equipment Co., Ltd.?

Customization based on real testing needs

Our company specializes in customized testing equipment for a range of industrial applications. We understand that laboratories and manufacturers may have different test methods, sample formats, and workflow requirements. Rather than assuming one configuration fits every project, we discuss the intended application and clarify the required functions before confirming a proposal.

For a tracking index tester, this approach helps buyers focus on the parts of the specification that matter most: the applicable test method, electrical control requirements, liquid delivery arrangement, electrode setup, sample positioning, safety measures, and documentation. It also helps identify any optional components that should be considered before production.

Understanding relevant standards

Testing equipment must be selected in relation to the procedure it is intended to support. IEC 60112 provides the method for determining proof and comparative tracking indices of solid insulating materials. However, a product-specific standard or customer specification may add requirements that need to be considered when selecting and configuring the equipment.

We encourage customers to identify the applicable standard and edition before ordering. If the equipment is intended for a particular qualification program, the buyer should also confirm the required acceptance criteria and documentation. This helps ensure that the equipment proposal is based on the actual test objective rather than a general description of tracking resistance testing.

Management system certifications

Guangzhou Chuangge Automation Equipment Co., Ltd. has obtained ISO 9001 certification for its quality management system, ISO 14001 certification for its environmental management system, and ISO 45001 certification for its occupational health and safety management system.

These certifications relate to the company's management systems in their respective areas. They should not be interpreted as automatic certification of every individual testing machine or as a substitute for verifying a particular equipment configuration against the customer's technical requirements.

Intellectual property and equipment development

Our intellectual property portfolio includes more than 20 patents, including invention patents, utility model patents, and software patents. This portfolio reflects our involvement in testing equipment development and related technical work.

When a customer needs a tailored configuration, we review the application and discuss a practical solution within the agreed project scope. We focus on understanding the required functions, clarifying the supply details, and confirming the checks and documents that will accompany the finished equipment.

Support from inquiry to delivery

We believe that good equipment procurement starts with clear technical communication. Customers should understand what the machine is designed to do, which components are included, how the equipment will be inspected before delivery, and which documents will be provided. We work to clarify these points before manufacturing begins.

For overseas buyers, we also discuss production schedules, negotiable payment terms, protective packaging, and transportation options. This practical approach helps customers coordinate their equipment purchase with laboratory planning, internal approval, and delivery arrangements.

Information to include in your quotation request

To help us assess your requirements for a Tracking Index Tester, please provide as much of the following information as possible:

• The material or component you intend to test.

• The applicable standard and edition, such as IEC 60112:2025, if required by your project.

• Whether you need CTI testing, PTI testing, or both.

• Specimen dimensions, material type, and preparation requirements.

• Required test voltage range and any specified control or reporting functions.

• Accessory, safety, and documentation requirements.

• Your delivery destination and preferred shipping method.

If you do not have every detail yet, you can still contact us with the basic application information. We can discuss the missing points and identify what needs to be confirmed before the final technical configuration is agreed.

8. Frequently Asked Questions About Tracking Index Testers

Q1. What is a Tracking Index Tester used for?

A Tracking Index Tester evaluates the tracking resistance of solid insulating materials under defined electrical and liquid application conditions. It supports the determination of CTI or PTI where required by the applicable test method. The results can help manufacturers compare insulating materials, support quality control, and investigate material performance for electrical applications.

Q2. What is the difference between CTI and PTI?

CTI is mainly used to characterize and compare the tracking properties of insulating materials. PTI is used to determine whether a specimen withstands a specified proof voltage under the defined test conditions. Both are covered by IEC 60112, but their purposes and test procedures differ. Buyers should confirm which result their product standard or customer specification requires.

Q3. Which standard is commonly used for tracking index testing?

IEC 60112 is the main international reference for determining proof and comparative tracking indices of solid insulating materials. IEC 60112:2025 is the current IEC edition identified in the IEC Webstore. The applicable edition for an individual project should be confirmed against the relevant product standard, customer specification, and laboratory requirements.

Q4. Can the tester be customized for different insulating materials?

Customization can be discussed according to the material, specimen dimensions, intended test method, required control functions, and laboratory workflow. To evaluate a request, we recommend providing the sample details and applicable standard. Any customization must remain consistent with the required test procedure and should be confirmed in the final technical specification.

Q5. Does a higher CTI value mean a material is always better?

No. A higher CTI value indicates better performance in the specific comparative tracking test, but it does not automatically mean the material is better for every application. Mechanical strength, thermal behavior, dielectric properties, environmental resistance, cost, and other product requirements must also be considered when selecting a material.

Q6. Can CTI results be used directly to determine creepage distances?

No. A CTI result should not be used by itself to determine safe creepage distances for electrical equipment. Creepage distance design depends on the applicable product standard and other factors, including the electrical and environmental conditions. The tracking test provides material information that may be considered as part of a broader insulation design process.

Q7. What affects the reliability of a tracking resistance test?

Important factors include specimen preparation, surface condition, test liquid, electrode arrangement, applied voltage, liquid drop delivery, and adherence to the applicable procedure. Equipment setup and operator practices also matter. Following the relevant standard and maintaining clear test records help make results more consistent and easier to interpret.

Q8. How long is the production cycle?

Our typical production cycle for testing equipment is approximately 30 to 60 days, depending on equipment specifications and customization requirements. The actual schedule is confirmed after reviewing the technical scope and order details.

Q9. What checks are completed before shipment?

Each unit undergoes functional inspection and performance verification before delivery. The specific checks depend on the supplied configuration and agreed technical requirements. If your project needs particular acceptance checks or supporting records, please specify them during the quotation stage so they can be reviewed in advance.

Q10. What documents are supplied with the equipment?

Operating instructions and technical documentation are provided as agreed for the project. If your laboratory requires additional documentation or specific formats, please explain these needs before the order is confirmed. The final document list should be recorded in the technical agreement or order documents.

Q11. Can you ship tracking index testing equipment internationally?

Yes, we can discuss sea, air, or land transportation according to the destination and delivery requirements. Protective materials and sturdy wooden cases are used as appropriate to protect the equipment during transport. The shipping method, packaging details, and commercial responsibilities should be confirmed before dispatch.

Q12. How can I request a quotation?

Contact Guangzhou Chuangge Automation Equipment Co., Ltd. with your material details, applicable standard, CTI or PTI testing requirements, specimen dimensions, required functions, and delivery destination. Drawings, photographs, or a test procedure can help us understand your application. We will review the available information and discuss the proposed configuration, production schedule, inspection scope, documentation, payment terms, and shipping arrangements.

Conclusion: Find the Right Tracking Index Tester for Your Application

Tracking resistance testing provides useful information about the behavior of solid insulating materials under defined electrical stress and liquid contamination conditions. For manufacturers and laboratories, a suitable Tracking Index Tester can support material comparison, product development, quality control, and verification against specified requirements.

The key is to match the equipment to the intended procedure. CTI and PTI have different purposes, and the required test conditions must come from the applicable standard and product specification. A well-planned testing process also depends on suitable specimen preparation, correct test setup, operator training, clear records, and careful interpretation of the results.

At Guangzhou Chuangge Automation Equipment Co., Ltd., we provide customized testing equipment for electrical, electronic, material, and other industrial applications. Our company holds ISO 9001, ISO 14001, and ISO 45001 management system certifications, and our intellectual property portfolio includes more than 20 patents. We review customer requirements before confirming equipment configuration, perform functional inspection and performance verification before delivery, and provide operating instructions and technical documentation as agreed.

Our typical production cycle is 30 to 60 days, depending on the specification and level of customization. We can discuss negotiable payment terms, protective packaging, and sea, air, or land transportation according to your project requirements.

If you are looking for a Tracking Index Tester for CTI testing, PTI testing, or electrical insulation material evaluation, send us your test standard, sample details, and required functions. We will review your application and discuss a suitable configuration based on the agreed testing requirements.

Technical References

• International Electrotechnical Commission (IEC), IEC 60112:2025 – Method for the determination of the proof and the comparative tracking indices of solid insulating materials. Official publication information: IEC Webstore.

• International Electrotechnical Commission (IEC), IEC 60243-1 – Electric strength of insulating materials – Test methods. Refer to the applicable edition for dielectric strength test requirements: IEC official website.

• UL Solutions, electrical testing services for plastics, including comparative tracking index testing under IEC 60112 and ASTM D3638: UL Solutions – Electrical Testing for Plastics.

Important note: This page provides general product and test-method information. It does not replace the complete applicable standard, product-specific requirements, laboratory safety procedures, or the agreed equipment specification. Actual equipment functions, accessories, verification items, and delivery arrangements should be confirmed in the final technical and commercial documents.