In the US, the Institute of Electrical and Electronics Engineers (IEEE) this week released a new version of IEEE 80, a Guide for Safety in AC Substation Grounding.
The professional association headquartered in the US said the guide presents more detailed information on the methods used to determine the current value to be used in the Guide design equations.
It also provides new equations to determine the current capabilities of bi-metallic materials that can be used in ground grids.
A new annex presents benchmarks that compare the IEEE equations with commercially available software.
The changes defined in IEEE 80-2013/Cor 1-2015, IEEE Guide for Safety in AC Substation Grounding – Corrigendum 1 have been incorporated into IEEE 80-2013.
Richard Keil, chair of the IEEE 80 Grounding Working Group, said: “The newest changes to the guide are intended to enhance the users’ overall knowledge of ground grid design and provide more detailed information to design a ground grid that applies anywhere in the world.”
IEEE 80, initially issued in 1961, proposes safe grounding practices for the design of mainly outdoor AC substations—either conventional or gas-insulated—for electric distribution or transmission and generating plants.
In some instances, IEEE 80 methods also can be applied to grounding of indoor AC substations.
With the approval of IEEE 80-2013/Cor 1-2015 and its integration with the base standard, IEEE 80 has been enhanced to help engineers more properly use IEEE 80’s equations and understand their limitations, to verify their understanding of commercially available software for ground-grid design against newly introduced standardized benchmarks and/or to better create their own software for ground-grid design.
The institute has a working group for IEEE 80 and commits to review the guide every five years.
IEEE standards for smart grid
The IEEE standards are applied globally.
Earlier this month, Metering.com reported that IEEE had signed an agreement with its Indian counterpart in a bid to broaden the export appeal of its smart grid technology.
The Bureau of Indian Standards announced it would adopt IEEE protocols alongside its existing use of the International Organization for Standardisation and International Electrotechnical Commission benchmarks.
In a joint statement, the pair said that the MoU signed this week also envisages future cooperation between the Bureau of Indian Standards and IEEE on emerging areas like smart grid systems, power quality, information and communication tools, cloud computing, and low-voltage direct current.