MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202641051100 A) filed by S G Bharathidasan; M Sankar; Ashvatha R; Abu Sathik Afridi S; and Nivetha Harshinl J on April 22, 2026, for A Versatile Automated Power Cables Insulation Specimen Preparation Unit For Standardized Testing.
Inventors include S G Bharathidasan; M Sankar; Ashvatha R; Abu Sathik Afridi S; and Nivetha Harshinl J.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: In the cable manufacturing industry, testing of the insulation in the cable for its tensile strength is an important step for ensuring its mechanical reliability and safety. It should meet the IS 10810 standards. For testing the tensile strength the preparation of the dumbbell shaped specimen is an important process which should comply to the dimensions given in IS 10810 strictly. Any dimensional en-ors and bun-s in the resultant specimen will cause in accuracies in the test. To avoid these issues a fully automated system for preparing this sample is proposed in this patent. Traditionally these processes are done using manual or semi-automated machines like the one mentioned in US2346227 where a hand operated machine is used for stripping the cable. Our proposed solution uses a linear actuated blade which will have an eddy cun-ent sensor in its tip will do incision cut to the cable then the depth of the cut is continuously monitored and controlled based on the distance from the conductor core so that the insulation is cut precisely without damaging the conductor. After the incision cut a mechanical wedge mechanism will split the insulation along the length of the cable and enables clean separation of the insulation from the core. The extracted insulation is then passed to a flattening unit where the thickness is made uniform as per IS 10810 requirements. This flattened insulation sheet is then checked for its thickness by using optical laser sensor which will fmd the thickness by subtracting the amount of time taken for the laser to reflect from a reference point. The flattened insulation is then transfen-ed to a three axis CNC like cutting system where the required dumbbell geometry is generated accurately based on predefined standard dimensions which is fed to the machine. Further, the prepared specimen is examined by an automated vision inspection system where the captured image is compared with a stored reference specimen and deviations are calculated to ensure dimensional con-ectness. Any incon-ect specimens are rejected automatically. By integrating sensing, cutting, shaping and inspection into a single closed loop system the proposed solution eliminates human dependency, improves repeatability, reduces material wastage and ensures high precision specimen preparation compared to existing methods.
Disclaimer: Curated by HT Syndication.
