Ex Equipment Repair, overhaul and reclamation

Ex certified Electrical and ex certified non-electrical equipment can be repaired, overhauled, reclaimed so as to remove the deficiencies in its intended state (the state in which it is required to perform) developed during the operation, discovered and identified during the inspection and maintenance.

The first and foremost service procedure is to maintain compliance of the equipment with the provisions of the Ex-Equipment Certificate.

No change in the Ex-Protection Parameters

Let us check our local repair shop , before we submit any repair work, for the following parameters and their respective evaluation . The guide lines are provided by IECEx by:-

The certified service facility scheme

The certified service facilities scheme assesses and certifies that organizations and workshops that provide Ex equipment selection, design, installation, inspection, maintenance, repair, overhaul and reclamation services to the Ex industry, do so in accordance with the requirements of the following IEC International Standards: (IEC 60079-19)

These standards deal with specific aspects:

IEC 60079-10-1 and IEC 60079-10-2: area classification
IEC 60079-14: installation design and selection of equipment
IEC 60079-14: installation and erection (on site)
IEC 60079-14: initial inspection
IEC 60079-17: visual, close, detailed inspection and maintenance
IEC 60079-19: repair, overhaul and reclamation

We may find a Repair Shop around the corner of our street but its better to search the the following IECEx Data base and listing:-

https://www.iecex-certs.com/#/search

The services provided by the Repair Shops :-

The overall services for Ex equipment include (IECEx Operational Document IECEx OD 316-5):-

Reair
Overhaul
Reclamation

The procedures followed by the certified service facility ( The Repair Shop) for repairs , overhauls or reclmation processes depend upon the implemented engineering practices and management policies but each procedure have to follow the road map and protocals, as per IEC60079-19 , at the minimum.

There are general procedures covering common aspects of all Ex equipment regarding repair, overhaul, reclamation, alteration, and modification and then there are special and additional requirements relevant to specific Type(s) of Protection as given in dedicated sections of IEC60079-19:-

Additional requirements for the repair and overhaul of equipment with Type of Protection “d”

Additional requirements for the repair and overhaul of equipment with Type of Protection “i”

Additional requirements for the repair and overhaul of equipment with Typeof Protection “p”

Additional requirements for the repair and overhaul of equipment with Type of Protection “e” or Level of Protection “eb”

Additional requirements for the repair and overhaul of equipment with Type of Protection “nA” or Level of Protection “ec”

Additional requirements for the repair and overhaul of equipment with Type of Protection “t” (formerly “tD” or DIP)

Requirements for the repair and overhaul of equipment with Type of Protection “o”

Requirements for the repair and overhaul of equipment with Type of Protection “q”

Requirements for the repair and overhaul of equipment with Type of Protection “s”

Requirements for the overhaul and repair of non-equipment with Type of Protection “h”

Ex “m”: Functional and visual inspection of Ex “m” equipment is the only option to validate the ongoing use of Ex “m”, if the Ex“m” equipment is damaged or defective it can only be replaced.

After Repairs

The first and formost requirement is to INDICATE its new status by MARKING.

Repaired and overhauled Ex Equipment shall be marked on the main part in a visible place. This marking shall be legible and durable taking into account all relevant environmental conditions. The marking shall include: (IEC60079-19)