Suggestions on the modification of the national standard for tubular heating elements
The national standard of tubular heating elements has reached the stage of having to be modified.In tubular heating elements, which are the main components of civil or industrial tubular heating elements, from the historical background of the formulation of national standards at that time and the current requirements of technology and materials, it can be said that it has been reviewed. There is a serious lag, and there are no detailed standards for its components in the international standards as a reference so far. The industry's measurement standards for product quality basically meet the needs of users. The enterprise standards formulated are many or even non-electrical component manufacturers such as thermostats. Manufacturers are also formulating so-called industry standards that mainly apply to the protection of their components.In general, they are very confusing. The revised focus of the new national standard will focus on safety and energy conservation. The general principle will not change, but the personal content of the details is as follows: Focus:
(1) Safety indicators for online working status
The safety of the tubular heating elements is not just from its normal indicators, such as the withstand voltage value, the size of the insulation value and other indicators can reflect the nature of the electric tubular heating elements, its unsafe factor is basically from the working state of the electric tubular heating elements It can be displayed, so the original national standard requires normal indicators. First, it is not necessary to set too many so-called high standards, and there is no certainty between them; the hot state is what is usually called online work. The basic requirements, whether it is content items or non-quasi-indicators, are actually too lacking in the original national standard or there are even vacancies in standard indicators. This is a big problem and the focus of this amendment. However, to implement it as a standard, it is difficult for the organizers. The focus is that there are too many types of tubular heating elements, and the second is that the scientific basis is based on a certain amount of work when qualitative. Empty the tube, but there is a large difference in power. How is the working leakage current standard determined at this time? Furthermore, although the reliability of the thermal index as a safety index of the tubular heating elements is very high, as a large-scale industrial production product, it must completely rely on it as a quality inspection. There are certain limitations in the method, that is, Practical methods and methods must have synchronization solutions to ensure the value of implementation, otherwise they will not be popularized.
(2) Enhancing testing items from the perspective of energy saving is of great significance to the reliability of quality measurement
The performance of the tubular heating elements needs to be detected through online working conditions to obtain a reliable conclusion. Due to its design and technology, as well as the quality of the material, it is impossible to draw a reliable conclusion visually. At present, low-carbon energy conservation is the main social project. In the implementation of the transition, the national standard for this vacancy considers the value of this document insufficient. The energy-saving standard is based on the level of electrical and thermal efficiency. On the one hand, it can reflect the real situation of the product, and at the same time, it can reflect the true status of a manufacturer's technical process and equipment capabilities, including integrity. For example, Shenzhen Suwaie Technology Co., Ltd. , and so on. The detection methods and methods of this part are relatively simple and easy to operate, and the determination of non-standards can be defined in a very digital manner according to the current capabilities of filling materials and equipment. In these aspects, timely adjustments can be made in terms of timeliness as technology advances In this regard, the author holds the point of view, and when testing, as long as the sampling inspection can reflect the true quality status, specific indicators are recommended to be more than 94.5% more realistic.
(3) Consistency of national standard content and international standards
The content of the national standard implemented last time has a certain gap with international standards, both in terms of dimensions and practicability. Analysis from the indicator data alone seems to be high in some contents. It does not reflect the advanced nature. Manufacturers and users are somewhat misleading. For example, the insulation index at normal conditions is set to DC500V> 10M, and the international standard has already adopted the 2M standard because their normal values are not too safe from the original work More relevance. At this time, also explain that the standards of some professional products in the industry, such as the detection methods and standards of the water pot series, if used with these thermostats, the matrix detection method has a high reference value at this time. However, if it is still unfounded to use this as a standard for a single device, the definition of component or appliance needs further investigation.
The above content is the author's proposal for the revision of the new standard. I hope that my colleagues will provide relevant content with practical value. I hope that the revised new standard will become a new and advanced new regulation to guide the healthy development of industry standards.