1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relev...1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relevant systems; to organize the implementation of laws, rules and systems on standardization：展开更多
International Electrotechnical Commission (IEC), one of the currently worlswide largest and most authoritative international standardization organizations,is specialized in developing and promulgating internationa... International Electrotechnical Commission (IEC), one of the currently worlswide largest and most authoritative international standardization organizations,is specialized in developing and promulgating international standards for the electric and electronic fields, which are widespread adopted through out the world and play an important role in the international trade of electric and electronic products. Moreover, according to the 2005 statistics by the World Bank, the population of countries participating in the IEC activities accounts for 92% of the world total and their trade volume accounts for 95% of the global total. ……展开更多
Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC). IEC is mainly engaged in the international standardization for electrical and electronic tech... Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC). IEC is mainly engaged in the international standardization for electrical and electronic technology field aiming at promoting international trade and technology cooperation and exchange, improving product and service quality, upgrading productivity and protecting the environment as well as human health and safety. Most countries worldwide adopt standards developed and promulgated by IEC, providing a platform to international trade and technical exchange. China has being a member since 1957. Electronic and IT are the most developed and energetic filed in recent decades. Number of IEC TC/SC specialized in electronic and IT amounts up to 52.……展开更多
Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufa... Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufactures for nearly 100 years. As an integral part of electrical and electronic product portfolio, Household electrical product development has also been directly influenced by IEC.……展开更多
Chinese electrotechnical industry includes power generation equipment, power transmission and distribution equipment, multi-purpose equipment, and basic electrical material. The industry has 46 national technical ... Chinese electrotechnical industry includes power generation equipment, power transmission and distribution equipment, multi-purpose equipment, and basic electrical material. The industry has 46 national technical committees (TC) and sub-committees (SC), which mirrors to 70 TCs and SCs of International Electrotechnical Commission (IEC). During the past five years, leaded by Standardization Administration of China (SAC),China Electrical Equipment Industry Association (CEEIA) obtained many great achievements in promoting participation of international standardization activities by improving unified management and concentrating industrial strength:……展开更多
The induction motor,which converts electrical energy into mechanical energy,has been recognized as the cornerstone of industrialization.The rotor of an induction motor can be either a squirrel cage rotor or a wound-ty...The induction motor,which converts electrical energy into mechanical energy,has been recognized as the cornerstone of industrialization.The rotor of an induction motor can be either a squirrel cage rotor or a wound-type rotor,both existing as magnetless topologies.Three-phase squirrel cage induction motors are frequently utilized in industrial drives because they are dependable,have high starting torque,are selfstarting and affordable.Single-phase induction motors,on the other hand,are commonly used for small loads such as domestic appliances in form of modest fans,pumps and electric power tools.In South Africa,there have been reports of fires and explosions resulting in live and property loss because of induction motors that have not been thoroughly tested or are incorrectly labelled in terms of ratings,electrical safety and performance.The goal of this study is targeted at preventing end-user injuries and failures caused by non-compliant induction motors,by evaluating locally manufactured/imported induction motors based on tests and evaluation from standards(IEC and SANS).The study is conducted using experimental procedures at the Explosion Prevention Technology and Rotating Machines(EPT and RM)laboratory,South African Bureau of Standards(SABS),South Africa.The main finding from the study shows differences in the nameplate characteristics of various induction motors which could have detrimental effects such as production and operational downtime in their end-use industries,at later stages.展开更多
文摘1. To draft and revise the state laws and regulations on standardization, to formulate and implement the policies on standardization; to formulate the national administrative rules on standardization and develop relevant systems; to organize the implementation of laws, rules and systems on standardization：
文摘 International Electrotechnical Commission (IEC), one of the currently worlswide largest and most authoritative international standardization organizations,is specialized in developing and promulgating international standards for the electric and electronic fields, which are widespread adopted through out the world and play an important role in the international trade of electric and electronic products. Moreover, according to the 2005 statistics by the World Bank, the population of countries participating in the IEC activities accounts for 92% of the world total and their trade volume accounts for 95% of the global total. ……
文摘 Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC). IEC is mainly engaged in the international standardization for electrical and electronic technology field aiming at promoting international trade and technology cooperation and exchange, improving product and service quality, upgrading productivity and protecting the environment as well as human health and safety. Most countries worldwide adopt standards developed and promulgated by IEC, providing a platform to international trade and technical exchange. China has being a member since 1957. Electronic and IT are the most developed and energetic filed in recent decades. Number of IEC TC/SC specialized in electronic and IT amounts up to 52.……
文摘 Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufactures for nearly 100 years. As an integral part of electrical and electronic product portfolio, Household electrical product development has also been directly influenced by IEC.……
文摘 Chinese electrotechnical industry includes power generation equipment, power transmission and distribution equipment, multi-purpose equipment, and basic electrical material. The industry has 46 national technical committees (TC) and sub-committees (SC), which mirrors to 70 TCs and SCs of International Electrotechnical Commission (IEC). During the past five years, leaded by Standardization Administration of China (SAC),China Electrical Equipment Industry Association (CEEIA) obtained many great achievements in promoting participation of international standardization activities by improving unified management and concentrating industrial strength:……
基金supported in part by Explosion Prevention Technology and Rotating Machines(EPT&RM)laboratory,South African Bureau of Standards(SABS),Pretoria,South Africa.
文摘The induction motor,which converts electrical energy into mechanical energy,has been recognized as the cornerstone of industrialization.The rotor of an induction motor can be either a squirrel cage rotor or a wound-type rotor,both existing as magnetless topologies.Three-phase squirrel cage induction motors are frequently utilized in industrial drives because they are dependable,have high starting torque,are selfstarting and affordable.Single-phase induction motors,on the other hand,are commonly used for small loads such as domestic appliances in form of modest fans,pumps and electric power tools.In South Africa,there have been reports of fires and explosions resulting in live and property loss because of induction motors that have not been thoroughly tested or are incorrectly labelled in terms of ratings,electrical safety and performance.The goal of this study is targeted at preventing end-user injuries and failures caused by non-compliant induction motors,by evaluating locally manufactured/imported induction motors based on tests and evaluation from standards(IEC and SANS).The study is conducted using experimental procedures at the Explosion Prevention Technology and Rotating Machines(EPT and RM)laboratory,South African Bureau of Standards(SABS),South Africa.The main finding from the study shows differences in the nameplate characteristics of various induction motors which could have detrimental effects such as production and operational downtime in their end-use industries,at later stages.
