Automated Cable Specimen Preparation System for IS 10810 and IS 7098 Compliance.
“Testing electrical cables requires cutting precise plastic or rubber layers and shaping tiny test pieces. Right now, workers do this manually or with basic tools, causing human errors and inconsistent test results. You need to build a smart automated machine that feeds, measures, cuts, and strips these cables accurately according to Indian Standards.”
Deconstructed Problem Blueprint
WHAT TO BUILD?
An automated hardware-software prototype system comprising a mechanical feeding/clamping unit, a precision blade-cutting and stripping module, an automated diameter sensor, and a PLC/HMI microcontroller-based control dashboard.
WHO IS IT FOR?
Cable manufacturing units, quality control (QC) labs, and testing inspection agencies operating under the Department of Consumer Affairs (DoCA) and Bureau of Indian Standards (BIS).
WHY DOES IT EXIST?
Manual sample preparation introduces human error, varies in dimensional thickness and cut lengths, takes too much time, and compromises the compliance and safety verification of critical power and industrial cables.
INPUT → PROCESS → OUTPUT ARCHITECTURE PIPELINE
Raw electrical cable samples (PVC, XLPE, HDPE of varying diameters), selected test method parameters from user interface (e.g., IS 10810 part numbers), and real-time sensor measurements.
Motor-driven rollers straighten and feed the cable, diameter sensors auto-detect gauge size, and the microcontroller computes precise blade depth and travel distance to perform circumferential cuts, stripping, and dumbbell cutting.
Exact cable test specimens conforming to IS standards, automated waste ejection, and a digital logging dashboard tracking batch metrics and test parameters.
CONSTRAINTS
- Must adhere strictly to dimensions specified in IS 10810 and IS 7098 standards.
- Mechanical tolerances for cutting depth must be within sub-millimeter precision.
- Safe operation requiring physical enclosures, emergency stop buttons, and interlocks.
- Low latency real-time control loop for motor steps and actuator responses.
JURY METRICS
- Dimensional accuracy and repeatability of the cut specimens compared to manual baseline.
- Processing speed (time taken to prep a single specimen batch).
- Robustness and reliability of sensor-driven auto-adjustment for various cable thicknesses.
- User interface simplicity and clarity on the HMI control panel.
CORE BOTTLENECK
Integrating real-time mechanical feedback loops with accurate blade depth control across varying cable sheath hardness (PVC vs XLPE) without damaging the internal copper/aluminum conductors.
Why You Should Choose This PS (Pros)
- High national priority problem under consumer affairs and manufacturing quality control.
- Clear, tangible hardware deliverables that create a massive visual 'wow' factor during evaluation.
- Direct commercial utility for Indian industries seeking BIS certifications.
Challenges & Risks to Watch (Cons)
- Hardware prototyping can be expensive and logistically challenging during a 36-hour hackathon.
- Mechanical calibration issues (slippage, blade wear) can cause demo failures if not thoroughly tested.
Recommended Tech Stack & Grand Finale Features
Killer Features to Impress the SIH Jury
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Accurate and consistent preparation of cable specimens is vital for reliable testing according to Indian Standards like IS 10810 (Parts 2, 7, 33) and IS 7098 (Parts 1 & 2). These tests, including conductor resistance, insulation/sheath thickness, and flame retardance, are crucial for ensuring cable safety and quality. Existing Problem: Currently, cable sample preparation involves significant manual intervention. The cable sample is manually cut by the operator and then straightened manually.Subsequently, these straightened PVC/XLPE/HDPE cable samples are cut into slices using electrically/pneumatically operated machines. Further, the samples are shaped as dumbbells by a dumbbell cutting machine. These manual and semi-automated steps are time-consuming,prone to human error, and introduce inconsistencies that compromise the accuracy and repeatability of critical test results.
Detailed
This project develops an automated machine designed to precisely cut insulation and outer sheaths from cables, preparing specimens that strictly adhere to the aforementioned IS standards. Key features include an Automated Cable Feeding and Clamping System utilizing motor-driven rollers and adjustable clamps for secure, straightened cable handling. The Cutting and Stripping Module employs precision blades with programmable depths for clean, circumferential cuts and linear stripping, fulfilling specific length requirements for various tests. An integrated diameter sensor will auto-adjust settings. A Control System (PLC/HMI) manages operations, allows test method selection, monitors status, and provides closed-loop feedback. Automated specimen ejection and waste management further streamline workflow. Robust safety features like enclosed areas and interlocks will protect operators.
The automated machine will eliminate human error, guaranteeing consistent and repeatable specimen quality while significantly reducing preparation time and costs. By ensuring strict adherence to IS standards, the solution will yield more reliable test results and simplify product certification. This advancement will markedly improve accuracy,efficiency, and safety in cable testing, supporting high-quality control in the cable manufacturing industry.