CSA Group CSA/ANSI C22.2 No. 343:25 National Standard of Canada American National Standard Electric vehicle energy management systems

Preface

This is the first edition of CSA/ANSI C22.2 No. 343, Electric vehicle energy management systems, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code.

This Standard covers the design, manufacture, and testing of electrical equipment that comprises or forms a part of an electric vehicle energy management system. This Standard covers only the aspects of an EVEMS and electric vehicle power transfer system equipment (EVPTSE) which are defined in the Canadian Electrical Code, Part I (CE Code, Part I) and National Electrical Code, NFPA 70.

This Standard is considered suitable for conformity assessment with the stated scope of the Standard.

The Standard was prepared by the Subcommittee on Electrical Vehicle Energy Management Systems, under the jurisdiction of the Technical Committee on Industrial Products and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.

The Standard has been developed in compliance with the Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.

This Standard has been approved by the American National Standards Institute (ANSI) as an American National Standard.

Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided the following direction for the interpretation of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard. When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant CSA committee interpretation has not already been published, CSA Group’s procedures for interpretation shall be followed to determine the intended safety principle.

Application of Standard

Where reference is made to a specific number of samples to be tested, the specified number is to be considered a minimum quantity.

Notes:

1)  Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2)  Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3)  This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.

4)  A request for interpretation can be submitted to clarify the meaning of a provision in this Standard. To submit a request for interpretation, please refer to www.csagroup.org/request-for-interpretation. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are available on the Standards Activities page at standardsactivities.csagroup.org.

5)  This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to [email protected] and include Proposal for change” in the subject line:

a) Standard designation (number);

b) relevant clause, table, and/or figure number;

c) wording of the proposed change; and

d) rationale for the change.

Scope

1.1

This Standard applies to electric vehicle energy management system(s) (EVEMS) product, sub-assemblies of matched assembly systems, and associated software, that provide functional safety control of electrical parameters intended to permit a demand factor to be applied to a calculated load for electric vehicle power transfer system equipment (EVPTSE), rated 1000 Volts ac or 1500 Volts dc or less, installed in accordance with the Canadian Electrical Code, Part I, CSA C22.1, and, the National Electrical Code, NFPA 70. An EVEMS may be equipped with other functionalities including non-safety control and communication.

1.2

The equipment to which the requirements of this Standard apply is intended for use in indoor and outdoor nonhazardous locations.

1.3

This Standard also includes a verification protocol, to validate the conditions listed in Electric Vehicle Energy Management Systems requirements of the Canadian Electrical Code, Part I, or the National Electrical Code are met, when EVEMS is implemented in accordance with the Electrical Code requirements for Canada and the USA. Refer to Clause 0, Introduction.

1.4

The requirements of this Standard do not apply to

a) equipment, sub-assemblies, or portions of software of EVEMS that do not perform load functional safety control if they are already covered by existing electrical equipment standards;

b) electric vehicle supply equipment (EVSE) contained in

CSA C22.2 No. 280/UL 2594/NMX-J-677-ANCE (which does not contain EVEMS functionality);

c) personnel protection systems for electric vehicle supply circuits as covered in CSA C22.2 No. 281.1/ UL 2231-1/NMX-J-668/1-ANCE and CSA C22.2 No. 281.2/UL 2231-2/NMX-J-668/2-ANCE;

d) battery chargers as covered by CSA C22.2 No. 346;

e) electric vehicle power export equipment (EVPE) equipment contained in CSA C22.2 No. 348/UL 9741 (which does not contain EVEMS functionality);

f) wireless power transfer equipment contained in CSA C22.2 No. 61980-1 (which does not contain EVEMS functionality);

g) wireless power transfer equipment is contained in UL 2750; and

h) DC charging equipment for electric vehicles contained in ANCE NMX-J-817/CSA C22.2 No. 346/UL 2202 (which does not contain EVEMS functionality)."

1.5

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that "within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

1.6

The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.