The automotive connector industry standard QCT 1067.1 has enjoyed a certain degree of recognition within the industry. However, in practice, many industry experts have questioned some of its content, believing it to be insufficient. Below, we will delve into these shortcomings.
1. Confusion over Sealing Level Testing
During the conversion of the SAE/USCAR-2 standard to QCT 1067.1, some industry concerns arose regarding the sealing level testing of sealed connectors. The standard clearly states that sealing levels are categorized as S2 and S3. However, in practice, there is a requirement to choose one of four. This requirement is significantly inconsistent with the relevant provisions of the USCAR-2 standard.
The USCAR-2 standard explicitly stipulates that both S2 and S3 sealing level connectors must undergo detailed airtightness and watertightness testing. In particular, S3 level connectors must also withstand the severe challenge of high-pressure water jets.
QCT 1067.1 Standard
: Regarding high-pressure water jet testing, the standard explicitly limits its application to S3-rated connectors. However, for airtightness and watertightness testing, the standard does not specify the applicable levels. This, combined with the "one out of four" testing requirement, adds a degree of uncertainty to the testing process.
This "one out of four" requirement appears to divide the nominally two sealing levels into four, clearly contradicting the original intent of the USCAR-2 standard and creating significant challenges in practical testing.
II. Difficulties in the Standard Conversion Process
The QCT 1067 standard is primarily based on the SAE/USCAR-2 standard, but this process inevitably leads to misinterpretations and misunderstandings. In addition to the aforementioned issues regarding sealing level testing, other logical or structural issues may also arise. These difficulties may be attributed to oversights or misunderstandings during the conversion process, leading to inconsistencies and ambiguities in practical applications.
III. Impact on the Industry
The QCT 1067.1 standard is widely used in the connector industry. However, various issues that may arise during the standardization process, such as misinterpretation of content, unclear logic, or ambiguity in structure, can have profound impacts on the industry. Specifically, these issues may lead to:
Increased testing costs: Due to the lack of clear testing requirements, companies may need to conduct repeated testing to meet the needs of different customers or standards, significantly increasing testing costs.
Increased product quality risks: Ambiguous testing standards can put product quality at risk. If companies conduct testing based on misunderstandings, this may lead to product problems in actual use.
Hindered industry standardization: Issues or inconsistencies within the standard itself may hinder the industry's standardization process, making it difficult to reach unified technical specifications and testing standards.
IV. Recommendations
Regarding the issues with the QCT 1067.1 standard regarding sealing level testing, we offer the following recommendations:
First, the standard should be revised to clarify testing requirements and level classifications to eliminate ambiguity and misunderstanding.
Second, training and education should be strengthened for industry personnel to enhance their understanding and application of the standard.
Finally, we recommend establishing a standard feedback mechanism to encourage industry professionals to actively raise questions and suggestions, thereby continuously improving and optimizing the standard.
In summary, through these measures, we can effectively address the issues with the QCT 1067.1 standard regarding sealing level testing and promote the healthy development of the connector industry.