Withstand Voltage Testers, Electronic Loads, and AC Power Supplies Through Comics

Episode 2: Withstanding Voltage Testers (Hipot Testers) – Part 2
How to Verify Safety

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Episode 2 Column

Episode 2 focuses on the underlying framework of quality assurance, rather than practical knowledge of testing equipment. When manufacturing companies grow to a certain size, it’s common to organize work based on different functions (so-called “division of labor”) to improve productivity and efficiency. For example, departments such as sales, development, production, and general affairs are established. Some theories suggest that, in companies with many multi-skilled employees capable of handling end-to-end tasks, the division of labour may be unnecessary. However, in reality, everyone has their own strengths, weaknesses, and preferences for what they want to do. Therefore, unless the company exclusively hires superheroes, clear job definitions and the division of labor are needed for smooth operations.

In the story appeares Mr. Kamiji, who is a section chief at the Quality Assurance Department. Company operations are broadly divided into “line (direct operations)” and “staff (indirect operations).” The Quality Assurance Department functions as staff, carrying out responsibilities with a comprehensive view of the entire organization. Quality Assurance, as the name implies, makes sure that products are free of defects. Although departments like Development and Production understand the importance of quality, they tend to focus more on new technologies or improving processes, which, in itself, is not a bad thing. Unfortunately, sometimes, this comes at the expense of quality. Therefore, the primary role of Quality Assurance is to establish various operational rules, systems, and environments, monitor daily operations, and guide line departments to ensure they stay on track.

Quality Assurance is very important, yet often misunderstood by other departments and sometimes even perceived negatively. Its role can be seen as overly strict or authoritative, which may lead to resistance or frustration among production line staff. This is a story from way back when I was a new hire. I had a meeting with the Quality Assurance manager at Kikusui to discuss a customer complaint. I knew absolutely nothing, so he was completely flabbergasted and treated me quite harshly. Personally, I thought my lack of knowledge was understandable considering I was inexperienced, but that excuse didn’t fly with a stubborn old-school guy… Nowadays, that would probably be considered power harassment. This experience has left me thinking that Quality Assurance is scary. Surprisingly, the manager actually started taking a liking to me (probably thinking I was such a clueless person he needed to help me out) and taught me quality assurance basics. He seemed intimidating at first, but after talking to him more, I realized this impression just came from his serious attitude towards work. Mr. Uechi, the section chief, is probably that kind of person as well. On the other hand, he says harsh things, so it’s hard to let your guard down. He also got angry over the “maximum current value,” but we’ll talk more about that in the next episode.

Coffee is a recurring side theme in this story, and it’ll continue to appear from time to time. You might wonder why a personal hobby is discussed in a professional context, but it often happens in real life. Nowadays, the line between work and personal life is often blurred. Sometimes, personal interests may benefit our work in unexpected ways. I hope the examples shown in this manga prove both useful and inspiring.