1. Product Name and Purpose

2. Product Features

• Robust and Insulated Chamber Structure
  • The chamber is constructed with heavy-duty, heat-resistant materials that can endure the intense thermal stresses. The walls are made of high-strength steel alloy, combined with advanced thermal insulation layers to minimize heat transfer between the hot and cold zones. The door is engineered with a reliable sealing mechanism and a viewing window, allowing operators to monitor the testing process without compromising the chamber's integrity. The interior is designed with adjustable racks and fixtures, enabling the accommodation of variously sized and shaped electrical components and ensuring uniform exposure to the thermal shock conditions.
• Precision Temperature Control System
  • Temperature Range and Cycling: Capable of achieving a wide temperature range, typically from -50°C to +150°C. The system can execute rapid temperature cycling between the hot and cold zones, with a transition time as short as a few seconds. This is essential for mimicking the abrupt temperature changes that electrical equipment may experience, such as during power surges or in harsh environmental conditions. The temperature control is accurate to within ±0.3°C, providing reliable and repeatable test results.
• Intuitive Control Panel and Data Acquisition Interface
  • The control panel is designed for user-friendliness, allowing operators to easily set and adjust test parameters such as temperature levels, dwell times in each zone, and the number of thermal shock cycles. It provides real-time displays of the current temperature in both zones, the status of the testing process, and any alarms or warnings. The chamber is integrated with a comprehensive data acquisition system that records all relevant test data. This includes temperature histories, cycle times, and any observable changes in the electrical, physical, or mechanical properties of the components. The data can be stored in a built-in memory or exported to external storage devices for further analysis. The system can also generate detailed test reports in various formats.
• Safety Features and Alarms
  • To ensure the safety of operators and the protection of the test samples and the chamber itself, a range of safety features is incorporated. These include over-temperature and over-current protection systems, emergency stop buttons, and alarms for abnormal temperature fluctuations, equipment malfunctions, or any other safety-related issues. The chamber is also equipped with proper ventilation and exhaust systems to handle any potentially harmful gases or vapors that may be generated during the testing process. Additionally, it complies with the safety requirements of NFPA 79:2015 and EN 61010-1, such as protection against electrical shock and fire hazards.

3. Specific Parameters

• Temperature Range and Accuracy
  • The -50°C to +150°C temperature range with ±0.3°C accuracy offers a comprehensive testing spectrum. Different electrical components have different temperature tolerances and performance characteristics. For example, semiconductor components in a power supply may have different electrical conductivity at extreme temperatures, and accurate temperature control is essential for evaluating their stability. The wide temperature range allows for the assessment of equipment under both extremely cold and hot conditions, ensuring compliance with the relevant standards.
• Thermal Shock Cycle Parameters
  • The chamber can be programmed to perform a specific number of thermal shock cycles, typically ranging from 10 to 500, depending on the requirements of the standards and the nature of the electrical equipment. The dwell time in each temperature zone can also be adjusted, from a few minutes to several hours. This flexibility enables manufacturers to simulate a wide variety of real-world scenarios and evaluate the long-term durability of components under different thermal shock conditions.
• Testing Volume and Payload Capacity
  • The chamber offers a customizable testing volume, usually ranging from 2 m³ to 10 m³, to accommodate a significant number of electrical components. The payload capacity is designed to handle heavy and bulky components, with a maximum capacity of up to several tons. This allows for the testing of both individual components and small assemblies.
• Data Sampling Frequency and Resolution
  • The data acquisition system samples data at a frequency of up to 600 Hz. The temperature data has a resolution of 0.1°C. This high-resolution and frequent sampling enable the detection of even the slightest temperature changes and trends, providing valuable insights into the behavior of the components during thermal shock testing.

4. Product Functions

• Accurate Simulation of NFPA 79:2015 and EN 61010-1 Test Conditions
  • The chamber replicates the exact thermal shock conditions specified in both NFPA 79:2015 and EN 61010-1 standards. This is crucial as electrical equipment must meet these requirements to ensure its compliance and safety. By subjecting the equipment to these precise simulations, manufacturers can be confident that their products will perform as expected in real-world applications.
• Product Design Optimization and Quality Control
  • Through a series of tests on different equipment prototypes, the data obtained from the chamber can be used to optimize product designs. Engineers can analyze the performance of various materials, circuitry layouts, and manufacturing techniques under thermal shock stress. The chamber also serves as a vital tool for quality control, ensuring that each production batch of equipment meets the required standards. For example, if a particular relay shows signs of contact failure after a certain number of thermal shock cycles, the design or manufacturing process can be adjusted to correct the issue.
• Research and Development Support
  • In the field of electrical equipment research and development, the Custom Thermal Shock Chambers offer valuable insights. Researchers can use them to study the fundamental properties of new materials and their interactions with thermal shock. They can explore innovative designs and technologies that result in more resilient electrical components. For instance, materials scientists can test the performance of novel insulating materials or advanced heat sinks under NFPA 79:2015 and EN 61010-1 test conditions, using the chamber to evaluate their potential for future electrical applications.
• Compliance Testing and Certification
  • The equipment is essential for conducting compliance testing to meet NFPA 79:2015 and EN 61010-1. The electrical industry has strict regulations regarding equipment performance and safety, and the test results obtained from the chamber can be used to certify that the equipment meets these standards. This is crucial for market acceptance and for ensuring the overall safety and reliability of electrical systems.

5. Production and Quality Assurance

• Stringent Manufacturing Process
  • The Custom Thermal Shock Chambers for NFPA 79:2015 and EN 61010-1 are manufactured under strict quality control procedures. Each component, from the chamber structure and insulation materials to the temperature control unit and safety features, is sourced from reliable suppliers and undergoes thorough inspection and testing. The assembly process is carried out by highly trained technicians in a clean and controlled environment. The chamber is calibrated and verified at multiple stages during production to ensure its accuracy and performance.
• Quality Certification and Validation
  Our chamber has obtained relevant quality certifications and has been validated by independent testing laboratories. It has been proven to provide accurate and reliable test results, conforming to NFPA 79:2015 and EN 61010-1 and other international and national electrical testing standards. We also continuously update and improve our product based on the latest technological advancements and customer feedback from the electrical industry to ensure its long-term performance and compliance.

6. Application Areas and Success Stories

• Control Panel Testing
  • An electrical equipment manufacturer used the chamber to test a new control panel design. The panel was subjected to a series of thermal shock cycles, simulating the temperature changes that occur during normal operation and in case of power failures or surges. The testing revealed a potential issue with the wiring connections, which tended to loosen after repeated thermal shock. By improving the connection method and using more heat-resistant wire insulation, the manufacturer was able to enhance the control panel's reliability and safety.
• Motor Component Evaluation
  • A motor manufacturer evaluated the performance of motor windings and bearings in the chamber. The components were exposed to extreme temperature changes, replicating the conditions that motors may face in different operating environments. The results showed that the insulation of the windings had a weakness in withstanding thermal shock. By using a more heat-resistant insulation material and optimizing the winding design, the manufacturer was able to improve the motor's performance and durability.
• Power Supply Durability Testing
  • A power supply manufacturer tested their products in the chamber. The power supplies were subjected to thermal shock cycles to assess their stability and performance. The testing identified a design flaw in the heat dissipation system, which caused overheating and potential failure after repeated thermal shock. By redesigning the heat sink and improving the ventilation, the manufacturer was able to increase the power supply's reliability and lifespan.

7. Service and Support

• Pre-Sales Technical Consultation
  Our team of electrical testing experts provides in-depth technical consultations to help customers understand the capabilities and suitability of the chamber for their specific testing needs. We offer demonstrations and training, tailored to the electrical industry, to familiarize their engineers and technicians with the operation and functionality of the chamber before purchase. We also assist in selecting the appropriate test parameters and accessories based on the electrical equipment to be tested.
• After-Sales Service and Maintenance
  We offer comprehensive after-sales service, including on-site installation and commissioning. Our technicians are available for regular maintenance, calibration, and emergency repairs. We provide spare parts and upgrades to keep the chamber operating at peak performance. We also offer service contracts that include preventive maintenance and priority technical support, ensuring the long-term reliability and availability of the tester for NFPA 79:2015 and EN 61010-1 thermal shock testing of electrical equipment.
• Training and Technical Support
  We conduct training programs for new users to ensure they can effectively operate the Custom Thermal Shock Chambers and interpret the test results. Our technical support team is available 24/7 to answer questions, provide troubleshooting assistance, and offer guidance on test method optimization and compliance with NFPA 79:2015 and EN 61010-1 and other electrical testing standards. We also provide software updates and support for the data acquisition and analysis systems, enabling customers to take full advantage of the latest features and technologies in testing.