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Third-party inspection and expediting on an equipment order: what each one is, and what an accreditation claim actually means
On a transformer, switchgear or battery order, two services get bought together and confused constantly: third-party inspection, which says whether the equipment conforms, and expediting, which says whether it will arrive on time. They answer different questions, they are held to different standards, and only one of them is accredited at all. Getting the distinction right is what turns an inspection report into something a lender, an insurer or a grid operator will accept, rather than a PDF with a logo on it.
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- An inspection body is accredited to ISO/IEC 17020; a test laboratory to ISO/IEC 17025. ISO 9001 certification is a management-system claim and says nothing about either.
- Accreditation is granted by a body operating to ISO/IEC 17011, and the ILAC Mutual Recognition Arrangement is what makes a report issued in one economy acceptable in another.
- A claimed accreditation is checkable against the accreditation body's own register. A logo on a supplier's website is not evidence.
- Expediting is not accredited, is not inspection, and buying both from one party puts the two jobs in conflict.
Inspection and testing are accredited to different standards
ILAC, the international organisation these accreditations run through, describes its own scope precisely: it is "the international organisation for accreditation bodies operating in accordance with ISO/IEC 17011 and involved in the accreditation of conformity assessment bodies including calibration laboratories (using ISO/IEC 17025), testing laboratories (using ISO/IEC 17025), medical testing laboratories (using ISO 15189), inspection bodies (using ISO/IEC 17020), proficiency testing providers (using ISO/IEC 17043) and reference material producers (using ISO 17034)".
Read the two that matter on an equipment order. An INSPECTION BODY, the party that witnesses a factory acceptance test or checks a shipment before release, is accredited under ISO/IEC 17020. A TESTING LABORATORY, the party that puts a sample on a rig and produces a measurement, is accredited under ISO/IEC 17025. They are separate accreditations with separate scopes, and a company may hold one, both, or neither.
ISO 9001 is in neither list, and that is the single most common substitution in this market. ISO 9001 is a certification of a management system: it says an organisation documents and follows its own processes. It is not an evaluation of technical competence to inspect a busbar or measure a winding resistance, and it is not accreditation. A supplier answering "are you accredited?" with an ISO 9001 certificate has answered a different question.
What accreditation is, and who grants it
ILAC's definition is worth quoting because it names the two properties being tested: "Accreditation is the independent evaluation of conformity assessment bodies against recognised standards to carry out specific activities to ensure their impartiality and competence."
Impartiality and competence, and both are scoped to SPECIFIC ACTIVITIES. That last phrase is where most due diligence stops too early. An inspection body accredited under ISO/IEC 17020 is accredited for a defined scope of inspection activities, not for inspection in general. An accreditation that covers pressure equipment does not cover high-voltage switchgear, and the scope document is the thing to read, not the certificate.
Accreditation is granted by national accreditation bodies, which themselves operate to ISO/IEC 17011. There is one layer above that, and it is what makes any of this useful across a border.
The ILAC MRA is why a report travels
ILAC operates a Mutual Recognition Arrangement, which it describes as providing "significant technical underpinning to the calibration, testing, medical testing and inspection results, provision of proficiency testing programs and production of the reference materials of the accredited conformity assessment bodies that in turn delivers confidence in the acceptance of services and results".
The trade consequence is stated plainly on ILAC's own benefits page: "The MRA supports international trade by promoting international confidence and acceptance of accredited testing and inspection reports, proficiency testing program provisions and reference material producers. Technical barriers to trade, such as the retesting of products each time they enter a new economy is reduced. In this way, the free-trade goal of 'accredited once, accepted everywhere' becomes a closer reality."
"Accredited once, accepted everywhere" is ILAC's phrase and ILAC calls it a goal that is becoming a closer reality, not a description of today. Treat it that way. It is the reason to prefer an inspection body accredited by an MRA signatory over one accredited by a body outside the arrangement, and it is not a guarantee that a specific destination regulator or a specific grid operator will accept a specific report. Ask the party who has to accept it.
How to check a claim in about ten minutes
A logo on a website is not evidence, and this is checkable, so check it. ILAC publishes an MRA signatory search and a route to accredited conformity assessment bodies, which is enough to establish whether the accreditation body a supplier names is actually an MRA signatory.
Then go to that accreditation body's own register, not the supplier's, and find the supplier's entry. What you are looking for is three things: that the entry exists, that it is current rather than suspended or withdrawn, and that its SCOPE covers the equipment and the activity you are buying. A certificate number with no matching register entry is the answer to your question.
Do this before the purchase order, not before the shipment. An inspection body discovered to be out of scope after the factory acceptance test is a re-test at your cost and a delay measured in factory slots.
Expediting is a different job, and the conflict is real
Expediting is progress chasing: confirming that a sub-supplier has actually placed the order for the core steel, that the winding is on the schedule it was promised on, that the test slot is booked. It is a schedule service, not a conformity service, and there is no accreditation standard for it in the list above because it is not a conformity assessment activity.
That is not a criticism of expediting. On a long-lead item it is often the more valuable of the two services, because the failure it prevents is the one that moves your energisation date.
The thing to be deliberate about is buying them from the same party. The two roles pull in opposite directions at exactly the moment they matter: the expediter's job is to get the equipment released and moving, and the inspector's job may be to hold it. Where they sit with one supplier, and especially where that supplier is paid on a milestone the shipment triggers, the incentive is against you. Separating them costs a second contract and removes the question.
What to put in the purchase order
Name the standard, not the service. "Third-party inspection" is a shopping category; "inspection by a body accredited to ISO/IEC 17020 by an ILAC MRA signatory, with a scope covering [the equipment], evidenced by a current register entry" is a requirement someone can be held to.
Name the hold points. An inspection that happens when the equipment is already crated is a document review. The points worth witnessing on electrical plant are typically the factory acceptance test and the pre-shipment check, and they need to be in the order before the manufacturer builds a schedule around not having them.
Name who accepts the report. If a grid operator, a lender or an insurer has to accept it, they are the party whose requirements decide what accreditation is sufficient, and asking them first is cheaper than arguing afterwards.