How many IEC series standards are there in total?

The IEC60870-5 series (IEC101, IEC102, IEC103, IEC104), all of which have the prefix IEC. So, how many standard systems does IEC have and what are the application fields of each standard system? IEC (International Electrotechnical Commission) currently has 89 technical committees (TC) and 107 sub-technical committees (SC), and has developed thousands of international standards (covering electrical, electronic and related technologies). By the end of 2000, IEC had developed 4,885 international standards, and this number has become even larger today.

Some major technical committees of IEC and their core standards:

Power System Control and Communication (TC-57)

Core standards: IEC 61850 (Substation Communication), IEC 60870-5 series (Telecontrol Transmission)

Application fields: Smart grid, substation automation, power dispatching, telecontrol

Electromagnetic Compatibility (EMC) (TC-77)

Core standards: IEC 61000 series (EMC)

Application fields: All electronic and electrical equipment, ensuring normal operation in electromagnetic environments and not interfering with other equipment

Electrical Installations and Protection Against Electric Shock (TC-64)

Core standards: IEC 60364 (Low-voltage Electrical Installations)

Application fields: Safety of electrical installations in buildings

Lamps and Related Equipment (TC-34)

Core standards: IEC 60598 (Luminaires), IEC 62031 (LED Modules)

Application fields: General lighting, automotive lighting, special environment lighting

Safety of Household and Similar Electrical Appliances (TC-61)

Core standards: IEC 60335 series (Safety of Household Electrical Appliances)

Application fields: Safety requirements for household and commercial electrical appliances

Medical Electrical Equipment (TC-62)

Core standards: IEC 60601 series (Basic Safety and Essential Performance of Medical Electrical Equipment)

Application fields: Safety and performance of medical diagnostic, therapeutic and monitoring equipment

Solar photovoltaic power generation systems (TC-82)

Core standards: IEC 61215 (photovoltaic modules), IEC 61730 (safety of photovoltaic modules)

Application fields: Design, safety and performance of photovoltaic modules, systems and components

Wind power generation systems (TC-88)

Core standards: IEC 61400 series (wind turbines)

Application fields: Design, testing, safety and performance of wind turbine generators

Industrial process measurement, control and automation (TC-65)

Core standards: IEC 61131 (programmable controllers), IEC 61508 (functional safety), IEC 62443 (industrial network security)

Application fields: Industrial automation, functional safety, industrial control system network security

Audio, video and multimedia systems (TC-100)

Core standards: IEC 62368-1 (safety of audio, video and ICT equipment)

Application fields: Audio, video, information technology and communication technology equipment

Semiconductor devices (TC-47)

Core standards: IEC 60747 series (semiconductor devices)

Application fields: Discrete semiconductor devices and integrated circuits

Application Examples:

The commonly seen "IP protection level" is defined by IEC60529, which specifies the protection level of electrical equipment enclosures against solid foreign objects (including dust) and liquids (water). Its application fields are very wide:

Consumer electronics: such as the IP68 level of mobile phones and watches.

Industrial equipment: such as mining machinery, which needs to prevent dust, water or corrosive liquids from entering.

Outdoor facilities: outdoor lighting fixtures (often requiring IP65), which need to withstand wind, rain and sand.

Medical: some medical equipment that may be cleaned and disinfected need to prevent liquid from entering.

Understanding the IEC Standard System:

1. Direct Adoption: Some countries or regions may directly adopt IEC standards as their national standards.

2. Modified Adoption: In more cases, countries will make minor modifications to IEC standards or adopt them as equivalent, converting them into their own national standards (such as China's GB standards).

3. Conformity Assessment: IEC itself does not conduct certification, but it has established three important conformity assessment systems to support the implementation of standards:

    IECEE (CB Scheme): A mutual recognition system for safety testing and certification of electrical and electronic equipment.

    IECEx (Ex Certification System): A system for standards and certification of equipment used in explosive environments.

    IECQ (Electronic Components Quality Assessment System): A system for quality and reliability assessment of electronic components.

Enterprises usually need to contact the standardization organizations of various countries or authorized certification bodies to obtain standard texts and conduct product testing and certification.