This Indian Standard (Part 21/Sec 1) which is identical with IEC 61851-21-1: 2017 ‘Electric vehicle conductive charging system — Part 21-1: Electric vehicle on-board charger EMC requirements for conductive connection to an AC/DC supply’ issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 1) which is identical with ISO 15118-1: 2013 ‘Road vehicles - Vehicle to grid communication interface - Part 1: General information and use-case definition’ issued by the International Organization for Standardization(ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 2) which is identical with ISO 15118-2: 2014 ‘Road vehicles - Vehicle-to-grid communication interface - Part 2: Network and application protocol requirements’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 3) which is identical with ISO 15118-3: 2015 ‘Road vehicles — Vehicle to grid communication interface — Part 3: Physical and data link layer requirements’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 4) which is identical with ISO 15118-4: 2018 ‘Road vehicles — Vehicle to grid communication interface — Part 4: Network and application protocol conformance test’ issued by the International Organization for Standardization(ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 5) which is identical with ISO 15118-5: 2018 ‘Road vehicles — Vehicle to grid communication interface — Part 5: Physical layer and data link layer conformance test’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This Indian Standard (Part 8) which is identical with ISO 15118-8: 2018 ‘Road Vehicles — Vehicle to grid communication interface — Part 8: Physical layer and data link layer requirements for wireless communication’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Electrotechnology in Mobility Sectional Committee and approval of the Electrotechnical Division Council.

This standard provides guidelines for construction, functional safety and test methods for battery operated automotive vehicles.

This standard (Part 1) specifies the method for measurement of electrical energy consumption expressed, in Wh/ km for L, M and N categories of electric power train vehicles.

This standard (Part 2) specifies the method for measurement of a range expressed, in km for L, M and N categories of electric power train vehicles.