Seo Koatsu kogyo Co.,Ltd

certification

Home > Information on Our Business Establishments > Consumer Product Accreditation Standard on the Welded Sections of Electrical Facilities

Consumer Product Accreditation Standard on the Welded Sections of Electrical Facilities

In 2004, Seo Koatsu Kogyo (specifically its Mikkaichi Plant) was accredited under the Consumer Product Accreditation Standard on the Welded Sections of Electrical Facilities, which represents an accreditation system on the welding control process. We have continuously renewed this accreditation by subjecting ourselves to regular surveillance.

We are pleased to report that on August 1, 2012, we were updated to the 2011 version of the accreditation standard (TNS-S3101-2011).

Under the above-mentioned accreditation, an external product accreditation organization evaluates the welding control process as well as the welded sections of products of each plant, and issues a certificate. Under the 2011 version of accreditation, the use of the consumer product accreditation system is mandatory in the inspection of businesses performing welding under Article 52 of the Electric Utility Industry Law.

Accreditation standard: a standard based on JIS Z 3400

General Scope of Accreditation
(1)Welded sections of pipes for boilers, heat exchangers, and liquefied gas equipment [thermal power plants (including fuel cell power plants)]【ICS code: 27.010】
(2)Welded sections of heat exchangers [equipment in gas and steam turbines and steam engines for thermal power plants other than fuel cell power plants]【ICS code: 27.040】
(3)Welded sections of vessels for boilers, heat exchangers, and liquefied gas equipment [except equipment in gas and steam turbines and steam engines for thermal power plants other than fuel cell power plants] 【ICS code: 27.060.30】
(4)Welded sections of vessels for boilers, heat exchangers, and liquefied gas equipment [equipment for fuel cell power plants] 【ICS code: 27.070】

* Use Scope and Advantages of the Consumer Product Accreditation
Under Article 52 of the Electric Utility Industry Law, inspection of a business performing welding needs to be conducted mainly by the customer (or the provider, i.e., a power plant).
For the customer, however, this inspection has conventionally been time- and labor-intensive because of complexities in the selection and management of a plant performing welding to which the inspection is to be entrusted.

Using the consumer product accreditation, however, the inspection items shown below can be cleared by subjecting them to the relevant certificate of inspection. (Source: “Guide on the Inspection of Businesses Performing Welding for Thermal Power Plants” (March 2012) issued by the Thermal and Nuclear Power Engineering Society of Japan)

(1)Management of a cooperating business in a first-party inspection
 [1] Requirements of an external consignee
 [2] Selection of an external consignee, and relevant evaluation criteria and results
 [3] Outline of the inspection of business consigned to an external business
 [4] Results of the inspection of an external consignee (documentation)
(2)Inspection of matters to be carried out in advance
(3)Management of testing and inspection equipment, etc. of a plant performing welding
(4)Management of education and training in a plant performing welding
電気工作物の溶接部に関する民間製品認証規格