About us

Since 1973 Miretti Group has been Leader in the Explosion Proof Protection of industrial equipment, engines and mobile vehicles destined to operate in potentially explosive atmospheres and in the Exhaust Cleaning Solutions reducing exhaust pollution.

Ex Glossary

Glossary of the most common technical terms in the world of explosion protection systems or Ex Solutions.

case history

12 March 2025
Explosion Protection Solutions for Onshore Drilling | Sets for Hydraulic Workover Unit
All Case History

News

23 May 2025
The Miretti Group has been nominated for the BtoB Awards Brianza!
13 January 2025
Miretti Group as the main reference for Atex market on Tuttocarrellielevatori.it network
more news

Ex solutions for your country

Miretti covers several industrial sectors and provides the type of
explosion proof protection
which best suits the different classified areas.

Certifications

EX Solutions
for your country
Global divisions
EX Solutions
for your country
Global divisions

Ex Glossary

Ex Standards & Regulations globally

The classification of converted industrial trucks and machines as Explosion Proof (Ex) by national and international recognized testing laboratories


Electric and Diesel Powered Industrial Equipment used in areas containing explosive or flammable materials must be protected to prevent any operation of the equipment from igniting the atmosphere. The design and construction of Miretti converted Industrial Trucks and Industrial Machines allow their classification as Explosion Proof (EX) by National and International Recognized Testing Laboratories and enable their use in explosive and hazardous atmospheres.

Miretti Company is certified ISO 9001. ISO 14001, ISO 45001. 

Miretti’s Ex products, Ex systems and Ex services are designed, manufactured and certified in according with ATEX, IECEx, NEC and worldwide standards and regulations.

Regulatory Standard for Electric Forklift Trucks in Accordance with Atex Directive

UNI EN 1755
Safety of industrial trucks – Operation in potentially explosive atmospheres

Regulatory Standard form Diesel Engines in Accordance with Atex Directive

UNI EN 1834 – 1 – 2 – 3
Reciprocating internal combustion – Safety requirements for design and construction of engines for use in potentially explosive atmospheres:

  • part 1: Group II engines for use in flammable gas and vapour atmospheres
  • part 2: Group I engines for use in underground workings susceptible to firedamp and/or combustible dusts
  • part 3: Group II engines for use in flammable dust atmospheres
Regulatory Standard for Components in Accordance with Atex Directive

CEI EN 60079-0
Electrical apparatus for potentially explosive atmospheres – General requirements

CEI EN 60079-1
Electrical apparatus for potentially explosive atmospheres protected by explosion-proof enclosures “d”

CEI EN 60079-5 / IEC 60079-5
Electrical apparatus for potentially explosive atmospheres protected by powder filling “q”

CEI EN 60079-7
Electrical apparatus for potentially explosive atmospheres protected by increased safety “e”

CEI EN 60079-11
Electrical apparatus for potentially explosive atmospheres protected by intrinsic safety “i”

CEI EN 60079-15
Electrical apparatus for potentially explosive atmospheres protection type “n”

CEI EN 60079-18
Electrical apparatus for potentially explosive atmospheres protected by encapsulation “m”

CEI EN 60079-31
Electrical apparatus for potentially explosive atmospheres protected by enclosures “t”

CNEX Standards

GB 19854
General rules of explosion-proof techniques of industrial trucks for explosive atmospheres

GB 725-91
Internal combustion engines

NFPA 70/NEC 500 Standards (North America) and CSA C22.1 / CEC Standards (Canada)

UL 583
Electric-battery powered industrial trucks

UL 558
Internal combustion engine powered industrial trucks

UL 1203
Explosive-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations

UL 1604
Electric Equipment for Use in Class I and Class II, Division 2 and Class III Hazardous (Classified) Locations

IECEX Standards

IEC 60079-0
Electrical apparatus for potentially explosive atmospheres – General requirements

IEC 60079-1
Electrical apparatus for potentially explosive atmospheres protected by explosion-proof enclosures “d”

IEC 60079-2
Electrical apparatus for potentially explosive atmospheres protected by pressurised enclosures “p”

IEC 60079-7
Electrical apparatus for potentially explosive atmospheres protected by increased safety “e”

IEC 60079-11
Electrical apparatus for potentially explosive atmospheres protected by intrinsic safety “i

IEC 60079-15
Electrical apparatus for potentially explosive atmospheres protection type “n”

IEC 60079-18
Electrical apparatus for potentially explosive atmospheres protected by encapsulation “m”

IEC 60079-31
Electrical apparatus for potentially explosive atmospheres protected by enclosures “t”
The most important keywords: explosion proof – ex trucks – flame proof convertion

EN 1755:2015

EN1755:2015 standard is name:“Safety of industrial trucks. Operation in potentially explosive atmospheres. Use in flammable gas, vapour, mist and dust”.

Miretti Group is in compliance with EN1755 standard. Miretti Group has been in compliance with EN1755:2015 standard since April 2017. From April 2017, all Miretti’s customers received their Ex forklifts/trucks/mobile vehicles fully compliant to the new EN1755.

Our Group have a specific know-how and an important expertise on this strategic new standard in order to let the Ex trucks working in safety in hazardous Zone 1 2G, Zone 2 3G, Zone 21 2D, Zone 22 3D.

EN1755 is mandatory from November 2017. All Ex trucks on the markets must be in compliance with the ATEX 2014/34/EU regulation in order to be safe. The new EN1755 groups the latest solutions and indicates which type of security level will be asked for the future into the market of mobile vehicles Explosion Proof Protected.

Ex conversions for North America US market

UNI EN 1755
Safety of industrial trucks – Operation in potentially explosive atmospheres

UNI EN 1834 – 1 – 2 – 3
Reciprocating internal combustion – Safety requirements for design and construction of engines for use in potentially explosive atmospheres:

  • part 1: Group II engines for use in flammable gas and vapour atmospheres
  • part 2: Group I engines for use in underground workings susceptible to firedamp and/or combustible dusts
  • part 3: Group II engines for use in flammable dust atmospheres

CEI EN 60079-0
Electrical apparatus for potentially explosive atmospheres – General requirements

CEI EN 60079-1
Electrical apparatus for potentially explosive atmospheres protected by explosion-proof enclosures “d”

CEI EN 60079-5 / IEC 60079-5
Electrical apparatus for potentially explosive atmospheres protected by powder filling “q”

CEI EN 60079-7
Electrical apparatus for potentially explosive atmospheres protected by increased safety “e”

CEI EN 60079-11
Electrical apparatus for potentially explosive atmospheres protected by intrinsic safety “i”

CEI EN 60079-15
Electrical apparatus for potentially explosive atmospheres protection type “n”

CEI EN 60079-18
Electrical apparatus for potentially explosive atmospheres protected by encapsulation “m”

CEI EN 60079-31
Electrical apparatus for potentially explosive atmospheres protected by enclosures “t”

GB 19854
General rules of explosion-proof techniques of industrial trucks for explosive atmospheres

GB 725-91
Internal combustion engines

UL 583
Electric-battery powered industrial trucks

UL 558
Internal combustion engine powered industrial trucks

UL 1203
Explosive-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations

UL 1604
Electric Equipment for Use in Class I and Class II, Division 2 and Class III Hazardous (Classified) Locations

IEC 60079-0
Electrical apparatus for potentially explosive atmospheres – General requirements

IEC 60079-1
Electrical apparatus for potentially explosive atmospheres protected by explosion-proof enclosures “d”

IEC 60079-2
Electrical apparatus for potentially explosive atmospheres protected by pressurised enclosures “p”

IEC 60079-7
Electrical apparatus for potentially explosive atmospheres protected by increased safety “e”

IEC 60079-11
Electrical apparatus for potentially explosive atmospheres protected by intrinsic safety “i

IEC 60079-15
Electrical apparatus for potentially explosive atmospheres protection type “n”

IEC 60079-18
Electrical apparatus for potentially explosive atmospheres protected by encapsulation “m”

IEC 60079-31
Electrical apparatus for potentially explosive atmospheres protected by enclosures “t”
The most important keywords: explosion proof – ex trucks – flame proof convertion

EN1755:2015 standard is name:“Safety of industrial trucks. Operation in potentially explosive atmospheres. Use in flammable gas, vapour, mist and dust”.

Miretti Group is in compliance with EN1755 standard. Miretti Group has been in compliance with EN1755:2015 standard since April 2017. From April 2017, all Miretti’s customers received their Ex forklifts/trucks/mobile vehicles fully compliant to the new EN1755.

Our Group have a specific know-how and an important expertise on this strategic new standard in order to let the Ex trucks working in safety in hazardous Zone 1 2G, Zone 2 3G, Zone 21 2D, Zone 22 3D.

EN1755 is mandatory from November 2017. All Ex trucks on the markets must be in compliance with the ATEX 2014/34/EU regulation in order to be safe. The new EN1755 groups the latest solutions and indicates which type of security level will be asked for the future into the market of mobile vehicles Explosion Proof Protected.

Descrizione

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Gallery of

Ex Standards & Regulations globally

  • Gallery of

    Ex Standards & Regulations globally

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    Miretti Ex Solutions for Mobile Vehicles
    Miretti UK Regional Workshop
    Miretti Ex Engines conversions
    technical-support-2
    technical-support-1
    technical-support-3
    Miretti UK
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    Categories of Conversion
    Type of protection Ex I
    Type of protection Ex D
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