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Chinese Institute of Electronics (CIE)

CIE is voluntarily constituted by the electronic information technology workers and related enterprises, legally registered academic, non-profit national legal associations, national Society, is the component of China Association for Science and Technology, anchored and accepted the direct leadership of the Ministry of Information Industry. Since its inception in 1962, CIE has always been an important force to promote the development of China’s electronic information of science and technology. As a unique platform for the integration and promotion of resources, it has extensive far-reaching impact of electronic information science and technology.

Council of the Institute has a total of 199 directors, including 52 executive directors, in which 10 vice president. Institute consists of 43 professional chapters, nine working committees and an office with one hundred people, and has local Society organizations in the country’s 30 provinces, autonomous regions and municipalities. Work covering various categories of the semiconductor, computer, communications, radar, navigation, microwave, radio, television, electronic measurement, signal processing, electromagnetic compatibility, electronic components, electronic materials and all regions.

Institute has more than 100 thousand professional members, including more than 10 thousand senior members. Institute host more than 20 kinds of journals of electronic information, held annually more than 200 large-scale conferences, exhibitions, publishing dozens of industry research reports, publishing a variety of books and series.

The institute is the member of the International Federation for Information Processing Society (IFIP), the International Union of Radio Science (URSI), the International Committee of Contamination Control Societies (ICCCS), International Pharmaceutical Federation for Information Processing (IMIA), and established membership relations with the American Institute of Electrical and Electronics Engineers (IEEE) , Institute of Electrical Engineers (IEE), Japan Society of Applied Physics (ISAP), Korea Electronics and Electrical Institute (KlTE), co-sponsorship of a series of more than ten international conferences, and build a unique platform for introduction, export, international exchanges of electronic information science and technology and product.

Basic selection principles of Electrical insulation materials

1. The premise of selecting an electrical insulation material

You should be clear before selection an insulating material: ① the structure of electrical equipment which use this material, the location and fixation of materials in the device.② working status of this equipment and the effect of the material in this state. ③how the insulating material is processed in this electrical equipment.④ how many insulating material in the device and which kind of insulation systems are they composed

2 Basic selection principles

(1) the force field the materials in. In addition to ensuring the safe operation of electrical insulating materials, insulating material may also be affected by centrifugal force, extrusion, compression, tension, stretch, shear, bending, or other force of repeated bending, some of these forces are stationary on the structure of the present device, others are generated when devices rotated, heated and other working conditions.

(2) the temperature field the materials in. Most electrical devices generate heat during operation the temperature rises, and some electrical equipment is to work for the purpose of heating, these will make the insulating material inside a specific temperature field. Selection of materials should calculate the temperature distribution of the device while operating, clear at what temperature insulating materials (including start-up, long-term and abnormal heat shock), combined with the life of the equipment, refer to Table 1 – 2, then consider the special case, select the appropriate heat-resistant grade of the material. It should also be noted here that the life of the device itself, such as general electrical equipment’s life is 15 years of continuous operation, but some devices may only work a few weeks or even a few hours, some work intermittently. All factors should be taken into account.

(3) the electromagnetic field material in. Electric and magnetic fields of different electrical equipment vary considerably, consequences resulting in electrical aging is also very different, such as voltage, current, AC, DC, low frequency, high frequency, frequency, electromagnetic waves of different shape, sine wave, square wave, steep waves, steep wave pulse, even within the insulating material has the electric field distribution. In addition, under high or special high voltage corona field, leakage, and the resulting partial discharge ozone and ionized particles impact, cracking, etc. Furthermore, in different power states, such as large current or no electric current, the electromagnetic field (electrostatic), etc. These all made for a very different requirements on insulating materials, must be selected.

(4) Material compatibility with the surrounding material. In the electrical equipment and components, the insulation material must work together with other materials, such as conductors, other insulators (gas, liquid, solid) as well as other mechanical materials and chemical materials. In most cases, an insulating structure may also be composed of several insulation materials. These materials, at room temperature or lower temperature, due to the role of the electric and thermal field, each occur physical, chemical reactions, such as dissolution, swelling, surface chemical reactions, mutual penetration, ion exchange, or by the reaction of new substances. These reactions by materials working together and what kind of positive or negative consequences the selected materials working in electrical equipment will bring, must also be evaluated in the selection.

(5) The process of the material. Materials used in electrical equipment, may be processed in two ways: first, make hold of the products, second, to be processed in the manufacture of construction equipment. This should be known when design (or repair). The materials must be able to not only withstand these processes, but its performance also to adapt the technologic requirement during processing and processed by electrical equipment finally. These processes include forming, cutting, punching, cutting, winding, impregnation, compound, pressing, baking, drying, off the assembly line, the line corrosion, bonding, coating, coating, wrapping, casting, extrusion, injection molding, molding, coating, welding, fitting, impact, etc., but also an important intermediate parts should be tested prior to assembly, or even simulated working conditions or under more severe conditions for type test or evaluation test. Material must be able to adapt to these processes.

(6) special environment material in. In recent years, electrical environments work in more extreme are increasing, such as the deep cold, ultra-high temperature, humidity, vacuum, high pressure, high altitude, deep sea diving, submersible, submersible water, space, underground, super frequency, intense pulsed , strong nuclear radiation, cosmic radiation, bad weather and unprotected work, etc., special attention is needed in the election insulating material.

(7) economy, easy access and friendly environmental. Economy, easy access to any material that is environmentally friendly is universal principles of selecting any material. Economy should include the price of the material itself and the additional value during process of obtaining (such as communications, transportation, storage and other additional costs), so a small amount of material downgrade is to be frequent occurrence. Besides, modern environment-friendly is the factor of selection, such as materials solvent-free, flame retardant, conducive to environmental protection, in line with environmental laws, regulations, decrees and standard.

International Electrotechnical Commission (IEC)

IEC, founded in 1906, is the first international electrotechnical standardization institution of the world, headquartered in Geneva. After the establishment of ISO in 1947, IEC is merged into ISO as electrical department, but maintains independence technically, financially. According to the new agreement between ISO and IEC in 1976, the two organizations are legally independent organizations, IEC is responsible for the electrical and electronic fields of international standardization and work in other areas is responsible by ISO.

The purpose of IEC is to promote international cooperation on the standardization of electrical and electronic fields and enhance mutual understanding. To achieve this goal, publishing a variety of publications, including international standards, and hoped that the National Committees use these international standards when their national conditions permit. Working areas of IEC includes electrical technologies of electrical, electronic, telecommunications and nuclear energy.

The highest authority of the IEC is Council. There are currently 53 member states, known as IEC National committees, each country can only have one institution as its members. Each Member State are members of the Council, the Council meeting once a year, called the IEC annual meeting, held alternately in each member states. Executive Committee deals with the matters assigned by the Council.

IEC technical work is charged by the Executive Committee (CA), in order to improve work efficiency, CA divided into A, B, C three groups, processing simultaneously in different areas of standards development and coordinating problems. There are currently 104 IEC technical committees and 143 sub-technical committees. China became the IEC Executive Committee members in 1957, in 1990 and 2002 hosted the 54th IEC and 66th Annual Meeting.

IEC has 3 Certification committees, namely the International Electrotechnical Commission Quality Assessment System for Electronic Components (IECQ), Worldwide System for Conformity Testing and Certification of Electrotechnical Equipment and Components (IECEE), IEC Scheme for Certification to Standards for Electrical Equipment for Explosive Atmospheres (IECEX). In order to develop an unified criteria for certification, IEC also established in 1996 Conformity Assessment Board (CAB), responsible for the development, including system certification and a series of certification and accreditation guidelines.

Voice Coil Material Introduction Video from China

This is the Voice Coil (Bobbin) Material Introduction video from Dexlu Industry Co.,Ltd of China including KRLock, KSV, NSV, TSV etc, we offer the online shopping for the various of voice coil material, you can visit “” for more detail.

International Organization for Standardization (ISO)

ISO, established in February 23, 1947, is the largest international standardization organizations in the world. Its predecessor was the International Standards Association (ISA), founded in 1928. October 14, 1946, representatives from 25 countries met in London, decided to establish a new international organization to promote international cooperation and unification of industrial standards.。 Accordingly, October 14 was designated as World Standards Day. World Standards Day first celebrated on October 14, 1970, by President of ISO Mr. Faruk Sunter (Turkey) of the time.

ISO is responsible for all other areas of standardization activities except electrical and electronic fields. Its purpose is “to promote the worldwide development of standardization and related activities in order to facilitate the international exchange of goods and services in the fields of intellectual, scientific, technological and economic cooperation. ISO’s highest authority is the annual “General Assembly”, the daily offices is the Central Secretariat, based in Geneva, Switzerland. China applied in 1978 to re-join the International Organization for Standardization.

ISO carry out technical activities through its 2856 technical institutions, of which, 185 Technical Committee (TC), 611 Sub-Technical Committee (SC) total, 2022 Working Group (WG), 38 special working groups. International standards is formed by the TC and SC through six stages: ① the application stage; ② preparatory phase; ③ committee stage; ④ review stage; ⑤ approval stage; ⑥ release phase. If the documents acquire at the beginning more mature, some stages can be omitted.

The technical activities fruits of 2856 ISO technical institutions is “international standards.” ISO has developed more than 10,300 international standards, mainly related to the technical specifications of various products industries. ISO international standard number format is: ISO + standard number + colon + release year, for example: IS08402: 1987, IS09000-1: 1994, etc., are a certain number of criteria.

The professional insulation material online store from China

On May 26, 2013, Suzhou Dexlu Material & Tech Co.,Ltd has launched the online business of insulation material, this online shop is the first online store of insulation material from China, mainly sell the insulation adhesive tape, insulation film, voice coil related material. It is very easy to order from this online store, you just need sign in the store and choose the the product with the size and quantity, add them to your shopping cart and check out. The system will calculate the best price with discount you will have. Also, we support the freight quotation on your order if your order weight will exceed 21kg.

This store now mainly sells the good including the insulation tape like Kapton adhesive tape, Mylar adhesive tape, ESD tape, polyimide film(HN type), polyimide FEP film(FN type), high temp. print labels, voice coil related material like KSV, TSV, KrLock etc. We will add more goods on the online store in future.

Why we need to launch the online business store? Frankly speaking, this online store is specially for the customer that not has too much quantity, they can order on the store more conveniently and fast. The normal business need the manual quotation, that is not convenient for this customers, this is all self service.

Suzhou Dexlu Material & Tech Co.,Ltd will make further convenient shopping experience, we hope to hear more suggestions from you.

American Institute of Electrical and Electronics Engineers (IEEE)

IEEE, be combined on January 1, 1963 by the AIEE (American Institute of Electrical Engineers) and the IRE (Institute of Radio Engineers U.S.) is the largest U.S. professional societies. IEEE is a non-profit Institute of Technology, has nearly 175 countries, more than 360,000 members all over the world. Through multiple members, this organization is in a position of authority in the field of space, computers, telecommunications, biomedicine, electric power and consumer electronics products. In the field of electrical and electronic engineering, computer and control technology, IEEE published literature about 30% of the world. IEEE sponsored or co-organized every year more than 300 technical sessions.

Since its beginning of foundation, IEEE has been committed to promoting the theoretical aspects of electrical technology in the development and application progress. As a catalyst for technological innovation, IEEE supports its members’ needs by planning and service in extensive field. Promoting science and technology and information exchange on technical areas from the computer engineering, biomedical, communications to electric power, aerospace, consumer electronics and so on, education training, development and recommendation of electrical, electronic technical standards, rewards membership with scientific and technological achievements.

Institute is leaded by the Chairman and the Executive Committee jointly. The council and congress make decisions on important matters of institute and the executive committee is responsible for daily affairs. Institute consists of superconducting, intelligent transportation system, neural networks and sensor 4 sub committees and 38 professional societies, such as power engineering, aerospace and electronic systems, computers, communications, broadcasting, circuits and systems, control systems, electronic devices, electromagnetic compatibility, industrial electronics, credit systems theory, project management, Microwave Theory and Techniques, nuclear and plasma ion science, marine engineering, power electronics, and electrical insulating dielectric reliability. Institute is also divided to 10 regions, and a total of more than 300 local branches. Congress is consisted of representatives from 10 regional braches and 10 technical braches. IEEE Beijing Branch was established in 1985.

IEEE members can enjoy the following preferential: members communicate with each other, sharing information; exclusive special cost savings and value-added benefits; recognizing and giving awards to members’ technical and professional achievements; participate, lead or voluntary assist IEEE opportunities; make e-commerce through network services and IEEE.

IEEE Standards include electrical and electronic equipment, test methods, components, symbols, definitions and test methods.

What is insulating paint?

Insulation used paint (or insulating paint) is electrically insulating paint for short. Modern insulating paint is a liquid resin system contain solvent or not, the main role of the insulating paint is insulation, so a higher requirement on its dielectric properties is needed.

The basic composition of the insulating paint are binder, solvents and diluents and auxiliary materials.

Generally, binder is made up of oil, resins and desiccant. Binder is an essential component of the paint.

Most binder of early paint contains oil, so called oil paint. Now, a lot of paint contains no oil, oil paint is only part of all.

Auxiliary materials including desiccant pigments, plasticizers or emulsifiers. Adding binder, flexible material and plasticizers to increase the softness of the film; adding emulsifier to produce latex paints; adding polymerization inhibitor to extend the storage period of paint; also add pigment to lacker.

Solvents and diluents are generally inert, i.e. evaporated when film drying, not participate in reaction. If participate in reaction, it is called “reactive diluents”, this paint is called “solvent-free paint.” Desiccant is not necessary in some resin varnish.

Insulating paint afford electrical components electrical, mechanical and environmental protection.

Brief of Electricl Insulatin Material

What is insulation material? Today we are talking only electrical insulation Material.

In China,according to the defination of China GB standard(GB 2900.5), insulation material is material which used to keeping the electrical parts insulative from the power. That means the material is used to prevent electric current pass the electrical parts. Usually this kind of material has very high electrcial resistance about 10^6~10^19Ω•m. For example, the insulation material can prevent the loops on the rotor from the slot that it can make the motor working safely.

Simply we say, we use the insulation material to compart the electriferous part from the non-electriferous part or another electriferous part to making the electric current follow the people’s willing and work.

Is insulation material importane in the modern insustry?

Is insulation material importane in the modern insustry?

If fact, insulation material is the necessary in the modern industrial product. For example, we will use about 10 tone of insulation lacquer, 8 tones of mica product, 5 tone of insulation laminated sheets and 1 tones of varnished glass cloth and film on a 300MW turbogenerator; the electrcial insulation material will take the 34% of the total weight in one 3200kW transformer and 18% of the total weight of one 10kV high voltage switch. According to the capacity generator and its accessories in China, the everage wastage of insulation material is about 65 tones per 10MW, so we can say, insulation material has taking a very big proportions in the electrical equipments.

There will be conductive material, magnet material, insulation material and structure material in most of motors and other electrical equipments. Beside the insulation material, most of the other material is metal. Durring the runing period of the equipments, the insulation material is special effected by temperature, eletricity, strength caused by shaking, bad gas, chemical material, wet, dust and radiation than other material in the equipment. Esay to say, the electrical insulation material is more easy to be aging and damaged that will cause the broken of the total equipment. So the insulation material is the key material that can guarantee the equipment working steady. It will decide the working life the motors and electrical equipments.