IEC60695-11-5 Needle Flame Test Instrument: A Crucial Tool for Product Safety Testing

Issuing time:2025-01-09 10:56Author:Pego Electronics

In today's world, where consumer safety is of paramount importance, the needle flame test instrument has emerged as a vital piece of equipment in ensuring the safety and reliability of a wide range of products. This specialized testing device plays a significant role across multiple industries, safeguarding lives and property by meticulously evaluating the flammability characteristics of materials and components.


Pego NF-1 and NF-1H Needle Flame Test Apparatus, plays a pivotal role in evaluating the flammability of materials. It uses a precise gas control system and a special needle burner to stably generate high-temperature flames required by the standard, and can perform precise burning tests on samples. From precision components of electronic appliances to automotive parts, wires and cables, etc., it can simulate potential flame scenarios and effectively detect the flame retardant properties of products. The instrument has a sophisticated structure, and the burner, gas supply, flame adjustment, sample fixation and timing device work together to ensure accurate and efficient testing. It is easy to operate and has a user-friendly interface. It not only meets strict international and domestic standards such as IEC and GB, but also takes into account practicality.

I. The Working Principle and Mechanics of Needle Flame Test Instrument

A: Principe: The needle flame test instrument operates based on a relatively straightforward yet highly effective principle. It generates a small, precisely controlled flame using a gas source, typically butane or propane. The gas is delivered through a fine needle-like nozzle, which helps to shape and direct the flame. This flame, which resembles the kind that might occur due to a localized electrical fault or overheating in a product, is then applied to the test specimen for a predetermined duration and under specific environmental conditions.


B: Structure of Pego Needle Flame Test Equipment:

- The overall architecture includes a test chamber, a core burner, a complete gas supply system, a precise flame height adjustment device, a stable sample fixture, and a precise timing unit.

- As the heart component, the burner shapes a concentrated and stable small flame by virtue of its unique shape and size design. The gas supply system, with the cooperation of gas cylinders, precise pressure regulators, and flow controllers, ensures that combustible gas is delivered to the burner at a stable pressure and flow rate. The flame height adjustment device is like a precision caliper, accurately adapting to different standards and test conditions. The sample fixture firmly fixes the test sample to ensure that it remains motionless under the impact of the flame. The timing device is like a faithful historian, accurately recording every second that the flame acts on the sample to guarantee the accuracy of the test results.

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C: Specification of Pego Needle Flame Tester

Control system

single chips and push buttons or LCD touch screen

Burner

Inner diameter: Φ 0.5mm ± 0.1mm

Outer diameter: ≤Φ 0.9mm

Length: 35mm,

Material: stainless steel

Burner angle

450 or 900

Application time

0-999.9s±0.1s adjustable (normally 30s)

Burning duration

0-999.9s±0.1s (auto record, manual pause)

Flame height

12mm ± 1mm (adjustable), Measuring with a steel ruler

Burn gas

≥95% butane gas or propane gas

Flame requirement

rising time from 100℃±2℃ to 700℃±3℃ should within 23.5s±1s

Thermocouple

Φ0.5mm K type thermocouple (The insulating sleeve heat resist to 1100 ℃)

Temperature sensor

Copper with Φ4mm and 0.58±0.1g weight, equip with K type thermocouple

Test space

≥ 0.5m3 , matte black background, illuminance ≤ 20Lux, exhaust hole: Φ70mm (Power on automatic work)

Test period

auto control

Pick-up tray

Yes

Gas calibration device

Built-in temperature measuring box, gas calibration can be executed before test

Accessories

Wrapping tissue, flat smooth wooden board, height gauges and etc..

Standard

IEC60695-11-5 (IEC60695-2-2), EN60695, GB/T51669.5, GB4706.1

II. Applications in Different Industries

A: Electronics and Electrical Appliances

In the electronics industry, countless components and products, from printed circuit boards to plastic casings, are potential fire risks if not properly designed and manufactured. The needle flame test instrument allows manufacturers to assess the flammability of these materials during the product development stage. By subjecting samples to the needle flame, they can identify whether a particular plastic used for a device's enclosure will resist ignition or if a circuit board coating will prevent the spread of fire in case of a short circuit. This not only helps in choosing the right materials but also in optimizing the overall product design to enhance safety. Many consumer electronics products that we use daily, such as smartphones, laptops, and televisions, have undergone needle flame testing to meet strict safety standards and gain certifications like UL or CE, ensuring that they pose minimal fire hazards to users.

B: Building Materials

When it comes to constructing buildings, the choice of materials can have a profound impact on fire safety. Walls, ceilings, and floors need to have adequate fire resistance to provide occupants with sufficient time to evacuate in case of a fire. The needle flame test instrument is used to evaluate the combustion behavior of building materials, including insulation materials, wallpapers, and flooring substrates. It helps architects and builders determine which materials are suitable for different applications within a building. For instance, in high-rise buildings where fire spread can be rapid, materials that pass stringent needle flame tests are preferred to slow down the progress of a fire and reduce the risk of a catastrophic event. This testing also encourages innovation in the building materials industry, as manufacturers strive to develop more fire-resistant products to meet the growing demand for safer construction.

C: Automotive Sector

Automobiles are complex machines with numerous flammable components, especially in the engine compartment and interior. The needle flame test instrument is crucial in assessing the safety of materials used in car interiors, such as seat fabrics, dashboard plastics, and door trims. In the event of a vehicle fire, these materials need to burn slowly or not at all to give passengers enough time to escape. Additionally, in the engine bay, wires, hoses, and plastic connectors are tested to ensure they do not contribute to the rapid spread of fire. Automotive manufacturers use the test results to make informed decisions about material selection and design modifications, ultimately enhancing the overall safety of vehicles on the road.

III. Significance for Product Quality and Market Access

Beyond the immediate safety implications, the needle flame test instrument has a far-reaching impact on product quality and marketability. For manufacturers, consistent testing using this instrument helps maintain a high standard of quality control. By identifying and rectifying potential flammability issues early in the production process, they can avoid costly recalls and reputational damage. In the global marketplace, compliance with safety standards that often require needle flame testing is essential for market access. Products that cannot demonstrate their fire safety credentials through proper testing may be barred from entry in many countries. This drives companies to invest in the necessary testing equipment and procedures, leading to a safer overall product landscape.

IV. Future Developments and Challenges

As technology advances, the needle flame test instrument is also evolving. Newer models are equipped with more advanced sensors, automated data collection and analysis capabilities, and improved precision in flame generation and control. However, challenges remain. Keeping up with rapidly changing international safety standards requires continuous updates to testing protocols and equipment. Additionally, as industries explore new materials and composites, the needle flame test instrument must adapt to accurately evaluate their unique flammability characteristics. But with ongoing research and development efforts, this crucial tool will continue to play a central role in safeguarding product safety and driving innovation across industries.


In conclusion, the needle flame test apparatus is undeniably a cornerstone of modern product safety testing. Its applications span diverse industries, and its contributions to enhancing safety, ensuring quality, and facilitating market access are invaluable. As we move forward, continued investment in its improvement and widespread use will be essential to meet the ever-increasing demands for safe and reliable products.

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PEGO ELECTRONICS (YI CHUN) CO., LTD.

ADDRESS: No. 429, Yichun South Road ( Happiness Park),   Yuanzhou District, Yichun, Jiangxi, 336000, China

E-MAIL: sales@pegotester.com, salesHK@pegotester.com

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