TR-CU Ex Certificate

As of 15.02.2013, all equipment secured against explosions (electric (electrical devices), including Ex components and non-electrical devices for use in areas at risk of explosion) are to demonstrate compliance with the technical stipulations for the Customs Union.    

Proof is the TR CU Ex Certificate in accordance with Technical Regulations 012/2011 'Regarding the safety if equipment for operation in an environment at risk of explosion', (resolution of the Customs Union's Commission of 18 October 2011, no. 825).

The  TR CU Ex Certificate is laid out as a TR CU Certificate with the extra feature of additional details regarding explosion protection being listed in further appendices.

There are two kinds of  TR CU Ex Certificate:

1. Contractual  TR CU Ex certificate 
This is issued for a contract and remains valid until the contract has been performed in full, i.e. the entire specifications of the contract have been implemented in the target country and all customs-related matters have been settled.

2.  TR CU Ex Certificate with a validity of 1-5 years, series production

This series certificate allows exporters to export the product stated on the certificate as often as it wants within the validity period (period of 1-5 years). The legislator requires audits to be carried out with a TR CU series certificate. These are generally carried out prior to actual certification.

Please note that in accordance with the Customs Union's new regulations, EAC certification must be applied for by a legal entity registered in the custom union's territory. The manufacturer continues to be shown as such on the certificate. 


Procedure for  TR CU Ex certification:

1.    Gathering of all required documentation for  TR CU certification
2.    Auditing of the manufacturer
3.    Taking of product samples from the manufacturer 
4.    Production of draft  TR CU Ex Certificate
5.    Agreement of draft
6.    Issuing of  TR CU Ex Certificate
7.    Registration of the products in the Custom Union's State State Register


Required documents for  TR CU Ex certification:

1.    Contract with a legal entity in the Customs Union  
2.    Legal entity's registration document (of the applicant)

- Trade and Commercial Register extract
- Registration with State authorities
- Statistics Office certificate

3.    Operating instruction in Russian
4.    Technical passport
5.    Previously issued certificates and records for equipment protected against explosions (both domestic and foreign certification systems).
6.    Certificates and documentation are required for all components in the event of certification of a complex product.
7.    CE Declaration of Conformity
8.    Internal and external test records 
9.    ISO 9001 (if available)
10.    Other documents directly or indirectly confirming the conformity of the machinery and plant with the technical regulations with regard to safety in place (where available)
11.    Circuit diagrams – mandatory for the following types of explosion protection:

ia, ib, ic – intrinsically safe electric devices
nA – non-sparking electric devices
o – enclosure filled with oil (a process for automatically monitoring the oil level is required)
pv, px, py, pz – enclosure filled or purged under pressure (process to automatically maintain constant pressure is required)
s – special type of explosion protection
op is, op pr, op sh - devices and transfer systems using optical radiation

12.    Assembly board drawings – mandatory for the following types of explosion protection:

е – increased 'e' type safety
ia, ib, ic – intrinsic devices
ma, mb, mc – encapsulation
nA – non-sparking electrical devices
s – special type of explosion protection
op is, op pr, op sh - devices and transfer systems using optical radiation

13.    Assembly drawings with details of the materials and parameters of the explosion protection.
14.    Information for selecting the sample
15.    Address of the storage area where the sample is to be selected.
16.    Photos of the product to be certified (at least five pictures, including one overall view and one photo of the rating plate as mandatory)
17.    Completed chain
18.    Draft product plate

Experience has shown that between one and four weeks are required for a  TR CU Ex certificate to be issued.

Once certified the products certified under the technical regulations are to be labelled with the mark (EAC) as confirmation of certification.


Requirements of the EAC mark



The following basic requirements apply to attaching the EAC mark to products:

•    The mark must be placed on every product unit, packaging or accompanying document. 
•    The mark must be clearly visible. 
•    The mark must be clearly readable. 
•    The mark must be displayed in one colour. 
•    The mark must be in contrast to the background colour. 
•    The mark must be permanently attached. 
•    The mark must be at least 5 mm high. 

The exact size and method of attachment is a matter for the manufacturer. 

Technical Regulations (TR) stipulate where the logo is to be placed on the product, packaging and accompanying documents.

Where it is apparent that these conditions have not been complied with, a penalty will apply.

The brand stands for Ех explosion protection (flameproof).

The size is defined by the manufacturer of the brand Ex-for use in explosive atmospheres.
The size of coordination of the rectangle must be not less than 10 mm.

The exact size and the type of application are chosen by the manufacturer. The Technical Regulations (TR) regulate the position of the logo on the product, on the packaging and accompanying documentation.

Failure to comply with this rule involves fines!