As a long-standing factory with 19 years of focus on voltage protectors and surge protectors, BXST’s core strength has never been “how many products we’ve made,” but “how many customers we’ve kept at ease” — our customer complaint rate has remained steadily below 0.5%, and this achievement lies in every interlinked quality control detail.
The “safety baseline” of voltage protectors is determined the moment components enter our facility. Even a single parameter mismatch in a varistor’s current-carrying capacity or a PCB board’s insulation performance can render the product ineffective. That’s why we’ve made Incoming Quality Control (IQC) and full Bill of Materials (BOM) verification mandatory thresholds for material entry:
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Every batch of varistors and terminal blocks undergoes performance testing;
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Before components are collected by the production workshop, they must be verified item-by-item against the BOM — eliminating fatal errors like “wrong component installation” and blocking the complaint risk of “component failure” at the source.
Cold solder joints in protectors are the most common hidden faults in electrical products. We’ve set up dual checkpoints of self-inspection + IPQC in-process inspection after the assembly line:
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After completing assembly, workers first conduct a power-on continuity test;
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IPQC inspectors then spot-check solder joints and wiring firmness, letting no minor defect slip through;
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In the “sample confirmation” link before mass production, we also test products under simulated actual working conditions — ensuring process issues won’t spread in batches, and minimizing the complaint risk of “assembly defects.”
For voltage protectors, “being able to power on” ≠ “being able to protect.” In the finished product stage, our final inspection targets core performance metrics: whether the residual voltage value meets standards, and whether voltage protection is accurate; meanwhile, packaging inspection + Outgoing Quality Control (OQC) serve as the final line of defense:
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Before each batch is shipped, we re-verify product parameters against customer requirements — intercepting all potential complaint points, from “substandard performance” to “wrong item shipment.”
19 years of experience in voltage/surge protectors has taught us exactly where the “risk hotspots” of these products lie: it’s not just generic “full-process inspection,” but a quality control chain designed around the core pain point of “electrical safety” —Knowing “component parameters” are critical, we strengthen incoming material and BOM verification; knowing “cold solder joints” are a hidden hazard, we implement dual in-process checks; knowing “performance failure” is the safety baseline customers care most about, we upgrade finished product testing to “actual working condition verification.”
It’s these safety-focused quality control details that make BXST’s products more than just “shippable goods” — they’re a reliable line of defense in our customers’ electrical scenarios.
