Ex-Proof Maintenance and Repair Consulting

Short answer: Explosion-proof maintenance and repair consultancy ensures that maintenance and repair of explosive atmosphere equipment are carried out without compromising its protective properties. Correct practices within the framework of IEC 60079-19 (repair) and 60079-17 (inspection) are ensured through consultancy.

Explosion-proof equipment leaves the factory certified; however, improper maintenance or repair can instantly invalidate that certification. A simple repair can produce equipment that appears to work but is no longer safe.

Drilling holes without manufacturer approval, using incorrect spare parts, or improper winding will render the equipment's explosion protection ineffective. Correct maintenance is only possible with an approach that understands the specific requirements of the field.

What is included in the consultancy services?

Establishing maintenance/repair procedures suitable for Ex protection type.
Guidance on competent repair practices (IEC 60079-19)
Assessment of spare parts and material suitability.
Establishing a post-repair marking and record-keeping system.
Correction of periodic examination findings

Why does repair easily compromise the protective feature?

The safety of explosive atmosphere equipment relies on highly precise design details: flame paths measured in microns within flameproof enclosures, limited energy in intrinsically safe circuits, and special insulation distances for enhanced safety. A repair carried out without awareness of these details—for example, processing of an enclosure surface, use of incorrect gaskets, or using a different material for motor winding—will inadvertently eliminate the protective function. IEC 60079-19 therefore stipulates that repairs must be carried out by competent personnel and facilities in a way that restores the equipment to its original level of protection. Consulting ensures that the company correctly implements these requirements.

Legal Framework and Assessment

Explosion-proof maintenance and repair requires specialized expertise under IEC 60079-19 and explosive atmosphere regulations; consultancy ensures this compliance.

Frequently Asked Questions

Can I have explosion-proof equipment repaired at a regular repair shop?

No; repairs must be carried out in facilities capable of restoring the protective properties and operating in accordance with IEC 60079-19.

What should be done after the repair?

Equipment must be properly marked, registered, and verified to provide the necessary protection.

Is the repair history checked during the periodic inspection?

Yes; improper past repairs are among the most common critical findings.