Singlelayer Shielded Test Cable

Most singlelayer shielded test cables follow a practical formula: stranded copper conductors for flexibility, polyethylene or polypropylene insulation for stable capacitance, a tinned copper braid shield with 85–95% coverage, and a tough PVC or polyurethane jacket. The single shield layer blocks electrostatic interference, which is typically enough for strain gauge bridges, vibrating wire sensors, and potentiometric instruments in moderate EMI areas. If the cable runs next to power lines or large motors, a second foil layer might be considered, but for the majority of structural health and geotechnical projects, single shielding hits the right balance. Kingmach supplies these cables in common 4-conductor (full bridge), 6-conductor, and twisted-pair configurations, usually with 22 to 24 AWG conductors. Outer diameters stay under 6 mm, making them easy to route through stuffing boxes and cable glands. Because standard stock rarely fits every project, Kingmach offers cut-to-length orders and can install popular connectors from binder, Hirose, or LEMO. The company’s strength is not in running millions of meters of generic cable; it is in knowing which shielding coverage works with a 0.1 Hz vibrating wire readout versus a 50 kHz dynamic strain measurement. This practical experience means the cable arriving on site has the right conductor resistance, shield bond, and jacket print for the job.