The expensive mistakes in cable manufacturing usually happen after the cable is engineered. In our Q1 2024 audit at Nexans, 72% of field-returned cable assemblies were traced to workmanship issues, not material defects. That gap convinced me that quality is more about consistency in the last five feet of the process than anything else.
I'm a quality/compliance manager at Nexans. Every year, I review roughly 200 unique items before they reach customers: factory test reports, lot samples, accessory kits, returned components, and more than a few connectors that arrived with the wrong colour code. Most of my work sits inside Nexans AmerCable Incorporated and the Nexans Charleston quality group, so my perspective is shaped by industrial power cable and field installation practices.
The 117 Multimeter Is a Better First Check Than a Big Test Set
When people hear cable manufacturing quality, they think of high-voltage test bays and partial discharge rigs. Those belong in the process, but they are not where most field problems begin. The failures I see are often continuity problems: a shield that isn't terminated, a drain wire tucked under a connector, a phase lead swapped by an installer working from a blurry photo. A Fluke 117 multimeter is faster at finding those issues than any high-voltage tester.
The feature that sold me is the low-impedance mode. A cable running beside an energized circuit can pick up induced voltage and make a normal meter show a live reading. The 117 multimeter's LoZ mode drains that phantom voltage, so the reading tells you whether power is actually present. For a quality inspector, that is the difference between chasing a ghost and finding a real defect.
Here is a concrete example. In Q3 2024, a customer returned an assembly labelled 'no power.' The factory test record showed the product had passed its final hipot test. When we opened the joint, we found the shield braid was not captured by the connector. A visual check did not reveal it because the braid looked symmetrical from the outside. A quick continuity measurement on the 117 multimeter caught it in under two minutes. The high-voltage test had not created the failure; the loose braid did.
I still use a calibrated high-voltage tester for dielectric proof testing. A handheld meter doesn't replace a test laboratory. Put another way: the 117 multimeter is not the last check, but it often should be the first.
The Best Shaver for Cable Prep Is a Tool, Not a Bathroom Product
If the phrase 'best shaver' sounds out of place in a cable manufacturing article, I understand. In this industry, the best shaver is an adjustable cutter used to remove the semi-conductive layer from medium-voltage cable before terminating. The tool matters because every score in the insulation can become a stress point once the cable is energised.
We tested three removal methods in 2022: a utility knife, a fixed-depth blade, and a proper adjustable cable shaver. The utility knife was the quickest, and it was also the cause of our most expensive mistake that year. An installer left a thin score in the insulation. It passed visual inspection and the initial test, then failed after installation. The rework, logistics, and customer downtime added up to a $22,000 bill. The fixed-depth blade was better but still left a slight variation on curved cable. The adjustable cable shaver produced a clean, uniform surface without cutting into the insulation. For our operators, that makes it the best shaver for this work.
That experience changed our specification. Now every medium-voltage termination procedure in our group includes a designated cable shaver, a calibrated depth setting, and a photograph of the prepared end before the joint is closed. It sounds like overkill until the photo record settles a dispute that would otherwise cost thousands of dollars. Quality people do not rely on memory or good intentions; they keep the evidence.
What Has Changed in Cable Manufacturing and What Has Not
I have been doing this work for four years, and the biggest shift I see is not in copper or insulation technology. It is in traceability. Customers used to ask for a certificate of conformance after an incident. Now they ask for evidence before they place the order. At Nexans AmerCable Incorporated, lot traceability covers everything from raw material lots to operator initials. The Nexans Charleston quality group follows the same discipline on finished assemblies.
The fundamentals have not changed. Copper still needs to be the right grade. Insulation still has to be clean. Shielding still has to be continuous. But the execution around those fundamentals has transformed. What was considered a best practice in 2020, such as a single quality stamp at the end of the line, is often not enough in 2025. Buyers want to know exactly how we verified each lot. That is a good thing.
Where This Advice Reaches Its Limit
I should be honest about the limits of my experience. My conclusions are based on roughly 500 quality reviews and interventions over four years, mostly within Nexans AmerCable Incorporated, the Nexans Charleston operation, and their supplier sites. If you work on submarine cable, aerospace wire, or rubber-insulated mining cable, your failure modes will be different. A 117 multimeter cannot tell you much about the dielectric condition of a long high-voltage cable, and the best cable shaver for semicon removal does not exist in every product family.
I also want to admit something that quality professionals rarely say: I second-guess decisions even after the data looks good. When we rolled out 117 multimeter kits, I worried that we were spending money on tools we already had. Then a field technician used one to catch an open shield in a panel that was about to be energised. The rework cost would have been far more than the meter. The reliable parts of our process have developed through exactly this kind of trial-and-error. They are not perfect, but they are better than the old assumption that all quality problems can be caught with a final test.
