International Standards and Conformity Assessment for all electrical, electronic and related technologies
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Electrical Energy

IEC helps keep the power on

 

Trasmission & Distribution logo

Power transmission and distribution is another key link in the energy chain. Many IEC TCs prepare International Standards that cover specifications, design and test requirements.

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Systems approach to electrical energy supply

 

 

 

 

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White Paper

 

 

 

 

 

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Overhead lines

 

 

 

 

 

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Cables

 

 

 

 

 

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Overhead electrical conductors

 

 

 

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Ultra High Voltage Transmission

 

 

 

 

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Power transformers

 

 

 

 

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Insulators

 

 

 

 

 

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Switchgear and control gear

 

 

 

 

 

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Other links in the energy chain

 

 

 

 

 

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Interview

 

 

 

 

 

 

Transmission and Distribution

 

Power transmission and distribution is another key link in the energy chain. Many IEC TCs prepare International Standards that cover specifications, design and test requirements.

 

 

Systems approach to electrical energy supply

 

TC 8: System aspects for electrical energy supply fosters a systems approach covering the whole electricity supply chain from production to utilization at the customer level. This includes terminology, electrical system reliability, connection practices, operation, operational safety, security, metering, and characteristics of energy supply.

 

 

Grid integration of large-capacity Renewable Energy sources and use of large-capacity Electrical Energy Storage

 

This IEC White Paper provides an overview on the state of the art and future directions for grid integration of large-capacity RE (Renewable Energy) sources and the application of large-capacity EES (Electrical Energy Storage).

 

 

Overhead Lines

 

New overhead lines and the refurbishment, upgrading, or uprating of existing lines on a worldwide basis represents a multi-billion USD market.
TC 11: Overhead lines, prepares International Standards for the design and testing of overhead line components (towers, foundations, fittings) not covered by other TCs.

 

 

Cables

 

Electric cables are used throughout the whole chain from supertension transmission cables rated up to 500 kV all the way down to domestic installation wiring and appliance cables.
IEC TC 20: Electric cables, prepares International cable Standards for all of these and for the accessories and systems above 1 kV.

 

 

Overhead electrical conductors

 

TC 7: Overhead electrical conductors, prepares International Standards for a wide variety of conductor types, materials and sizes, as well as test methods for performance and other characteristics.

 

 

 

Ultra High Voltage Transmission

 

UHVDC (Ultra High Voltage Direct Current) transmission for DC voltages above 800 kV offers important benefits – flexibility, control, cost, and environmental. It brings major advantages for large-capacity power transmission over long distances and for the interconnection of power systems.

The development of a roadmap for standardization of UHVAC (Ultra High Voltage Alternating Current) has been accomplished in the IEC Strategic Group 2: UHV. TC 115: High Voltage Direct Current (HVDC) transmission for DC voltages above 100 kV, prepares International Standards for HVDC transmission and provides guidelines for the design, operation and maintenance of the HVDC transmission system.

 

 

Power transformers

 

As power transformers are produced and procured across frontiers this trade relies entirely on International Standards. TC 14: Power transformers, prepares International transformer Standards which are adopted as national standards in many countries and used globally by utilities, consultants and project management companies as the basis for the specification, manufacture and testing of power and phase shifting transformers and similar equipment.

 

 

 

Insulators

 

Insulators are essential for high voltage systems and equipment including overhead lines and substations and their couplings.
TC 36: Insulators, prepares International Standards for the components that are used by utilities, electrical equipment manufacturers (e.g. power and instrument transformers, circuit breakers, cables, etc).

 

 

 

Switchgear and control gear

 

High-voltage switchgear (circuit-breakers, switches, contactors, starters, disconnectors and any switchgear assemblies) often serves as the ultimate safety device in T&D networks.
IEC SC 17A: High-voltage switchgear and control gear and SC 17C: High-voltage switchgear and controlgear assemblies, prepare International switchgear and control gear Standards.
TC 99: System engineering and erection of electrical power installations in systems with nominal voltages above 1 kV AC. and 1.5 kV DC, works to ensure the safety of HV installations.
TC 99 works in particular on safety aspects for system engineering and erection of electrical power installations in systems with nominal voltages above 1 kV AC and 1.5 kV DC.

 

 

Other links in the energy chain

 

Many more IEC Technical Committees prepare International power generation, transmission and distribution Standards for systems and equipment. TC 10: Fluids for electrotechnical applications, covers liquids used, for instance, as insulators in transformers and lubricants in other equipment;TC 57: Power systems management and associated information exchange, works on Standards that are needed in the planning, operation and maintenance of power systems.
TC 28: Insulation co-ordination for power systems with nominal voltages above 1000 V AC and 1500 V DC;
TC 42: High-voltage and high-current test techniques;
TC 78: Live working, prepares International Standards for the tools, equipment and devices used in live working on power lines, substations and other installations. Other IEC TCs cover work for systems and installations in residential and other buildings including:
TC 23: Electrical accessories such as cable management systems, plugs, sockets, switches;
TC 32: Fuses;
TC 34: Lamps and related equipment;
TC 47: Semiconductor devices used in integrated circuits and sensors.
These IEC TCs and others work on additional essential aspects found across different systems and devices, such as terminology, safety, interoperability and EMC, which is covered by TC 77: Electromagnetic compatibility

 

 

Watch the video

From products to solutions – Ensuring compatibility

Thomas S. Gross, Chief Operating Officer, Eaton

 

Thomas Gross, Chief Operating Officer of Eaton, one of the largest power management companies globally, explains why most of the major global challenges, and the markets that emerge around them, depend directly on the ability to connect solutions from different suppliers. The transition from products to total solutions requires interoperability and other standards. Eaton wants to be a leader in these transformations. That’s why Eaton and, for that matter hundreds of other companies work in the IEC and sit at the table where the rules for global trade are written. They understand that leaving this up to the competition would jeopardize their company’s future.