Implementation rules for quality supervision and s

2022-08-15
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Detailed rules for the implementation of quality supervision and random inspection of cable materials in Liaoning Province

this detailed rules is applicable to the quality supervision and random inspection of cable materials in Liaoning Province. Special random inspection for special circumstances and local supervision and random inspection organized by local market supervision and administration departments above the county level in Liaoning Province can be implemented by reference. The detailed rules include product classification, terms and definitions, production scale division of enterprise products, inspection basis, sampling, inspection requirements, judgment principles, objection handling and supplementary provisions

2 product classification, terms and definitions

2.1 see Table 1 for product classification and code

Table 1 product classification and code

the detailed rules involve product categories: copper wire blank for electrician, round copper wire for electrician, soft PVC plastic for wire and cable, black polyethylene plastic for wire and cable, crosslinkable polyethylene material for wire and cable, semiconductive shielding material for extruded insulated cable with rated voltage of 35kV and below, etc

2.3 terms and definitions

the terms and definitions appearing in this detailed rules are the same as the relevant reference standards

3 division of production scale of enterprises

determine the scale of enterprises according to the relevant management measures issued by the National Bureau of statistics

4 inspection basis

for all dated documents, all subsequent amendments (excluding Corrigendum) or revisions are not applicable to these rules. For undated documents, the latest version is applicable to these rules

gb/t copper wire blank for electrical purposes

gb/t round copper wire for electrical purposes

gb/t soft polyvinyl chloride plastic for wire and cable

gb/t black polyethylene plastic for wire and cable

jb/t crosslinkable polyethylene insulating material for wire and cable

improving the energy utilization efficiency of plastic granulator process and preventing and controlling environmental pollution are complementary

jb/t semiconductive shielding material for extruded insulating cable with rated voltage of 35kV and below

Enterprise standards, group standards, local standards, and laws, regulations, department rules and specifications related to product express quality requirements

5 sampling requirements

5.1 sampling model or specification

the samples taken should be products of the same model, specification and batch. Priority should be given to enterprises' leading products

when the leading products of the sampled enterprise have multiple models and specifications in the finished product warehouse of the enterprise and meet the following sampling base requirements, the types of sampled products and the number of samples to be sampled can be randomly determined by means of random number table, dice or playing cards

5.2 sampling base, sampling quantity

5.2.1 sampling location

random samples of recently produced products with product quality inspection certificate or other forms of qualification in the finished product warehouse of the enterprise or products to be sold (in principle, within one year)

5.2.2 sampling base

electrical copper wire blank/electrical round copper wire: the sampling base is 300kg

cable material: sampling base 100kg

5.2.3 sampling quantity

copper wire blank for electrician/round copper wire for electrician: randomly select 1 plate, and the sampling quantity is not less than 9m for a whole section of sample. Among them, 4.5m is used as the inspection sample, and the remaining sample is not less than 4.5m as the standby sample

cable material: the sampling quantity is not less than 4kg, of which 2kg is used as the inspection sample, and the remaining sample is not less than 2kg as the standby sample. If the sample is silane cross-linked polyethylene material or silane cross-linked polyolefin material, the inspected enterprise shall provide extruded test pieces with a thickness of 1mm, a width of more than 25mm and a length of more than 4m, of which 2m is the inspection sample and 2m is the standby sample. In addition, not less than 2kg raw material particles (including material a and material B, if any) shall be sampled, of which 1kg is the inspection sample and not less than 1kg is the standby sample

5.2.4 matters needing attention in sampling

5.2.4.1 sampling shall be carried out by sampling personnel on site, and enterprises shall not sample by themselves. The samples taken shall be products with certificates of product quality inspection or other forms indicating that they are qualified

5.2.4.2 when sampling, the sampling personnel shall carefully verify the relevant information of the sampled enterprise such as the business license, and confirm that the enterprise does not have the situation that sampling is not allowed. In case of any of the following circumstances and valid certificates can be provided, sampling shall not be allowed:

(1) the products listed in the notice of unsupervised random inspection or copies of relevant documents of the enterprise under random inspection

(2) there is sufficient evidence to prove that the products to be sampled are not for sale

(3) the product does not involve mandatory standard requirements, and is only processed and produced according to the technical requirements agreed by both parties, and no standard is implemented

(4) there is sufficient evidence to prove that the products to be sampled are for export by the enterprise, and the export contract has other provisions on product quality

take products with length and width of 50mm*220mm (5) or products with labels, packages and instructions marked with "trial production", "treatment" or "sample"

(6) the enterprise provides the supervision and random inspection sampling list or qualification inspection report of the product within 6 months from the superior market supervision department

5.3 disposal of samples

the test samples and spare samples shall be packed and sealed respectively, the sample protection, moisture-proof and sealing measures shall be taken, the certificate of conformity shall be attached, and the minimum bending radius of the samples shall meet the standard requirements, and the samples shall be carried or sent to the inspection institution. The packaging method should be able to prevent the samples from being damaged or contaminated during transportation, and the sealing method should be able to effectively prevent unauthorized unpacking

the sample sealing sheet shall be signed by the sampled enterprise and the sampling technician, indicate the sampling date, and confirm that the sample sealing sheet is firm

5.4 sampling form

the sampling form shall be filled in according to relevant regulations, and the relevant information of the products and enterprises to be sampled shall be recorded. At the same time, record the total sales of products produced by the sampled enterprise in the previous year, in 10000 yuan; If the enterprise did not produce in the previous year, the actual sales volume of the current year shall be recorded and noted. For information such as sample technical parameters required for product inspection, which needs to be provided by the sampled enterprise, it should be obtained at the sampling site and confirmed by the enterprise

5.5 sample purchase

shall be implemented in accordance with the relevant administrative measures of the State Administration of market supervision

6 inspection requirements

6.1 inspection items

Table 2 product inspection items and importance classification

(1) copper wire billet for electrical purposes

note 2: extremely important quality items refer to indicators directly related to human health and use safety; Important quality items refer to the indicators related to environmental protection, energy efficiency, key performance or characteristic value of products

note 3: the inspection items listed in the above table are specified by relevant laws, regulations, standards, etc. (1) whether the operation at each speed is safe and stable, with emphasis on health, safety, energy conservation, environmental protection, and important items with quality problems reported by consumers and relevant organizations

6.2 problems needing attention in inspection

if the expressed quality requirements of the tested products are higher than the standard requirements on which the inspection items are based in the detailed rules, the expressed quality requirements of the tested products shall be judged

if the expressed quality requirements of the tested product are lower than the mandatory standard requirements on which the inspection items are based in this detailed rules, it shall be determined in accordance with the mandatory standard requirements

if the expressed quality requirements of the tested product are lower than or include the recommended standard requirements on which the inspection items are based in the detailed rules, the expressed quality requirements of the tested product shall be judged

if the expressed quality requirements of the tested products lack the mandatory standard requirements on which the inspection items are based in the detailed rules, it shall be determined according to the mandatory standard requirements

if the expressed quality requirements of the tested product lack the recommended standard requirements on which the inspection items are based in the detailed rules, the items will not participate in the judgment, but should be explained in the remarks of the inspection report

7 determination principle

after inspection, all the inspection items are qualified, and it is determined that the products under random inspection are qualified; If any one or more of the inspection items is unqualified, it is determined that the product under random inspection is unqualified

conclusion words:

after sampling inspection, the inspected items meet the requirements of * * standard, and are determined to be qualified according to the implementation rules for quality supervision and random inspection of cable materials in Liaoning Province

after sampling inspection, the * * item does not meet the requirements of * * standard. According to the implementation rules for quality supervision and random inspection of cable materials in Liaoning Province, the former name of MTS displacement sensor in the United States is temposonics, which is determined as unqualified

8 objection handling

when an enterprise is judged to be unqualified, it should be handled in the following way:

8.1 check the relevant evidence of unqualified items, which can be proved by records (paper records or electronic records or image records) or other quality data associated with unqualified items

8.2 for those that need to be reinspected and meet the inspection conditions, the market supervision and administration department or the designated inspection institution that handles the enterprise's objection shall organize reinspection of the retained samples or spare samples taken according to the original implementation rules of supervision and random inspection. If there is an arbitration method for the reinspection items, the arbitration method shall be used for reinspection, and an inspection report shall be issued. The recheck conclusion is the final conclusion

8.3 tensile strength items, tensile yield stress items and fracture tensile strain items are related inspection items, tensile strength items after aging, tensile strength change rate items, fracture tensile strain items after aging and fracture tensile strain change rate items are related inspection items, and dielectric constant items and dielectric loss factor items are related inspection items. If the enterprise raises an objection to one of the related inspection items, The re inspection authority shall re inspect and determine the corresponding other related items at the same time. The recheck conclusion is the final conclusion

this detailed rules is prepared by Liaoning provincial inspection, testing and Certification Center (national wire and cable quality supervision and Inspection Center (Liaoning))

the detailed rules are managed by the product quality and safety supervision and Management Office of Liaoning provincial market supervision and Administration Bureau

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