G/TBT/N/MEX/177/Rev.1  
 
1 March 2013  
(13-1095)  Page: 1/2  
Committee on Technical Barriers to Trade  Original: Spanish  
 
 NOTIFICATION 
Revision 
The following notification is being circulated in accordance with Article 10.6. 
 
1. Notifying Member:  MEXICO 
If applicable, name of local governme nt involved (Articles 3.2 and 7.2):   
2. Agency responsible:  Secretaría de Energía (Ministry of Energy) 
Name and address (including teleph one and fax numbers and e-mail and 
website addresses, if available) of  agency or authority designated to handle 
comments regarding the notification shall be indicated if diffe rent from above: 
 
Comité Consultivo Nacional de Normalización de Instalaciones Eléctricas (National 
Advisory Committee on Electrical Installation Standardization) / Comité Consultivo 
Nacional de Normalización para la Preservación y Uso Racional de los Recursos 
Energéticos  (National Advisory Committee on Standardization for the Conservation and 
Rational Use of Energy Resources) 
Insurgentes Sur Número 890, piso 8 
Colonia Del Valle, Delegación Benito Juárez C.P. 03100, México, Distrito Federal 
E-mail: presidencia_ccnnie@energia.gob.mx  
Website: http://www.energia.gob.mx  
3. Notified under Article 2.9.2 [X], 2. 10.1 [ ], 5.6.2 [ ],  5.7.1 [ ], other:   
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provid ed in addition, where applicable):  
Distribution transformers (HS codes: 8504.21.01, 8504.21.99, 8504.32.02, 8504.32.99, 
8504.33.01 and 8504.33.99) 
5. Title, number of pages and lang uage(s) of the notified document:  Proyecto de 
Norma Oficial Mexicana NOM-002-SEDE/ENER-20 12, Requisitos de seguridad y eficiencia 
energética para transformadores de distribución (Draft Mexican Official 
Standard NOM ‑002‑SEDE/ENER ‑2012: Safety and energy efficiency requirements for 
distribution transformers) (16 pages, in Spanish) 
6. Description of content: This draft Mexican Official Standard lays down the minimum 
safety and energy efficiency requirements fo r distribution transformers and the testing 
methods for verifying compliance with these requirements. 
The text applies to the following types of domestically manufactured or imported 
distribution transformers intended for the end consumer and marketed in Mexico: pole‑mounted, substation, pad ‑mounted and submersible (in accordance with the 
definitions set out in the text), and self ‑cooled using insulating fluid. 
It also applies to distribution transformers which are repaired, rebuilt or reinstalled with 
a view to being marketed in Mexico. G/TBT/N/MEX/177/Rev.1 
 
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  7. Objective and rationale, including the nature of urgent problems where 
applicable:  [Protection of the environment; safety and energy efficiency 
specifications.]  
8. Relevant documents:   
- G/TBT/N/MEX/177/Add.2;  
- G/TBT/N/MEX/177/Add.1; - G/TBT/N/MEX/177; 
- Mexican Official Standard NOM-008-SCFI-2002 - Sistema General de Unidades de 
Medida  (General system of units of measurement), published in the Official Journal 
on 27 November 2002; 
- Mexican Official Standard NOM-024-SCFI-1998, Información comercial para 
empaques, instructivos y garantías de los productos electrónicos, eléctricos y 
electrodomésticos (Commercial information to be displayed on the packing of and 
instructions and guarantees for electronic, electrical and home electrical appliances). 
9. Proposed date of adoption: 
Proposed date of entry 
into force:   Not applicable. 
16 months after publication of the final Mexican 
Official Standard in the Official Journal. 
10. Final date for comments:  22 April 2013 
11. Texts available from: National enquiry point [X] or address, telephone and fax 
numbers and e-mail and website addresse s, if available, of other body: 
Secretaría de Economía 
Subsecretaría de Competitividad y Normatividad 
Dirección General de Normas 
Tel.: (+52) 55 5729-9100, Ext. 43217 Fax: (+52) 55 5520-9715 E-mail: normasomc@economia.gob.mx  and/or jesus.figueroa@economia.gob.mx  
Website:" http://www.economia.gob.mx/comuni dad-negocios/competitividad-
normatividad/normalizacion/catalogo-mexicano-de-normas " 
Text available online at: 
http://www.dof.gob.mx/index.p hp?year=2013&month=02&day=20  
http://members.wto.org/crnattachments/2013/tbt/MEX/13_0829_00_s.pdf