Explosion protected drive solutions by NORD

Australia and New Zealand IECEx

IECEx approval can be helpful for the approval of explosion protected electrical equipment according to national standards.

Scope of Application
Australia and New Zealand

Basis
Technical standards based on IEC standards (International Electrotechnical Commission)

Based on ...

• IECEx 01 IEC Scheme for the Certification to Standards for Electrical Equipment for "Explosive Atmospheres (IECEx Scheme) - Basic Rules" and
• IECEx 02 IEC Scheme for the Certification to Standards for Electrical Equipment for "Explosive Atmospheres (IECEx Scheme) - Rules of Procedure"

Ex standards

• for motors
  • IEC 60079-0 Explosive atmospheres - Part 0: Equipment - General requirements
  • IEC 60079-31 Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
• for gear units
  • ISO 80079-36 Non-electrical equipment for explosive - Part 36: atmospheres - Basic method and requirements
  • ISO 80079-37 Non-electrical equipment for explosive - Part 37: atmospheres - Non electrical type of protection constructional safety "c", control of ignition source "b", liquid immersion "k"

Documents

• Official bodies involved: DEKRA EXAM and PTB

Audits: IECEx audits by Ex- testing laboratories and (Ex-certification bodies) are mandatory.Performed by the PTB as the notified body.

Energy efficient motors
Energy efficiency requirements for motors:

From the point of view of the IECEx there are neither requirements nor restrictions with regard to energy efficiency classes. NORD supplies motors with efficiency classes IE1 and IE2 with IECx approval.

Currently, Getriebebau NORD does not offer EX gear units according to IECEx. A combination of an IECEx motor and a gear unit, complying with EU standard, is possible.

EurAsian EAC EX

EAC (abbreviation for EurAsian Conformity) is a label which states that a product complies with the specifi cations of the Eurasian Economic Union regarding to technical specifi cation, labelling and documentation.

EAC Ex indicated conformity with the standard TR CU 012/2011 1) "On safety of equipment intended for use in explosive atmospheres". This contains technical specifi cations which are largely based on the IEC Ex as well as standards which are used in the EU.

Certififed NORD products
The conformity certifi cation is completed in the form of a declaration and certifi cation. NORD products, their production and quality management have been accepted and approved by the certifying body NANIO CCVE. The corresponding certifi cates can be found under www.nord.com Documentation / Certififcates

UPDATE: The certifications of NORD products (gear units, motors and electronics) have expired on 30.06.2023 and will not be extended. All products already on the market are certified and can continue to be operated.

Scope of Application
Russia, Belarus, Armenia, Kazakhstan and Kyrgyzstan

Basis
TR CU 012/2011 "On safety of equipment intended for use in explosive atmospheres". Technical standards based on IEC (International Electrotechnical Commission) standards. In particular IEC 60079 and IEC 80079.

Products from NORD DRIVESYSTEMS compliant with EAC Ex are tested and produced in a similar manner to products according to Directive 2014/34/EU ATEX.

The technical data of the motors correspond to that of ATEX motors used in Europe - see page C1-2 and C5 as well as E1-2.

Standards for NORD EX motors
Applied standards for NORD EX motors

• ГОСТ Standard
  • ГОСТ 31610.0-2014
  • ГОСТ P MЭЌ 60079-31-2013
  • ГОСТ P MЭЌ 60079-7-2012
  • ГОСТ 31610.15-2014
• IEC Standard
  • IEC 60079-0:2011
  • IEC 60079-31:2013
  • IEC 60079-7:2006
  • IEC 60079-15:2010

Canada CEC

With the 2015 version of the Canadian Electrical Code (CEC) the IEC concept based on zones was adopted:

• Repairs and extensions of existing systems may continue to be carried out in accordance with the requirements of the division system.
  • Article 18-000, (see also NEC 500)

CEC - Canadian Electrical Code
CEC in Canada – with CEC 2015 several articles have been completely revised or deleted entirely!
Article:

• 18-000: Description of scope of application
• 18-002: Definition of hazard areas
• 18-004: Classification of gases and dusts
• 18-006: Classification of gases – Zone 0, 1 and 2
• 18-008: Classification of dusts – Zone 20, 21 and 22
• 18 -Annex J: Classification according to the division system for existing plants

The zone system according to IEC Ex protection is mandatory for all new installations as of 2015!

Hazloc - Explosion protection in North America

Unlike in many other parts of the world, the explosion protection in the US is not based on IEC specifications.

With a similarly high safety level, this results in specific technical solutions as well as a separate categorisation of technical devices with regard to the corresponding explosive environment and the explosive mixture.

Safety standard NEC
The specifications for electrical equipment originate from the NEC The National Electrical Code (NEC) is a safety standard of the United States of America. This formulates the specifications for the design of electrical installations.

HazLoc
Unlike e.g. in Europe, devices are not categorised according to their use, but rather into "Classes" and "Divisions". In the USA the term "Hazloc" is used in a similar manner to "ATEX" in Europe.

Scope of Application
USA (and Canada for existing plants)

Basis
USA: NEC National Electrical Code (Canada: CEC Canadian Electrical Code)

In 1996, the IEC classification system (categorisation according to zones) was also introduced for Class I. This change was made by Article 505 of the NEC, which gives the user the opportunity to choose the system that is technically and economically optimal for their purposes. In 2005 Zones 20, 21 and 22 for areas with flammable dust (Article 506) were introduced.

NEC - National Electrical Code
Article

• 500: General requirements for Class I, II and III Divisions
• 501: Requirements for Class I Divisions
• 502: Requirements for Class II Divisions
• 503: Requirements for Class III Divisions
• 504: Requirements for Class I, II and III Divisions with regard to intrinsic safety (IS)
• 505: General and specific requirements for Zone 0, 1 and 2
• 506: General and specific requirements for Zone 20, 21 and 22