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    Moodle is an open-source Learning Management System (LMS) that provides educators with the tools and features to create and manage online courses. It allows educators to organize course materials, create quizzes and assignments, host discussion forums, and track student progress. Moodle is highly flexible and can be customized to meet the specific needs of different institutions and learning environments.

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PVC shathed cable system Installation level 3

Installing a PVC-sheathed cable system involves several steps, including safety preparation, planning the layout, installing conduit, pulling the cable, terminating connections, and testing the system. Key considerations include identifying the correct cables and accessories, protecting the cable from environmental factors and sharp edges, and ensuring the installation complies with all relevant electrical standards and regulations. 

1. Safety and planning
  • Prioritize safety: Adhere to all safety standards and regulations, such as those from OSHA, and apply lockout/tagout procedures before starting work.
  • Identify components: Verify that all cables, accessories, and fittings are the correct size and type for the job, following standards like IEC.
  • Interpret diagrams: Review wiring diagrams to understand the required layout and ensure all components are correctly identified.
  • Choose a path: Select the shortest and most direct path for the conduit, ensuring it doesn't run through or near incompatible materials like bituminized papers or certain aromatic polymers.
    This video demonstrates a common method to pull wires through PVC conduit using a vacuum cleaner and a drawstring:
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    2. Conduit installation
    • Mark the path: Mark the locations for mounting hardware and conduit bends.
    • Mount hardware: Securely attach base clips or mounting saddles to the wall at regular intervals.
    • Install conduits: Cut and bend the conduits as needed to create the pathway. Connect the conduits using appropriate fittings and secure them to the mounting hardware.
    • Use protection: Where conduits might come into contact with sharp edges, use protective sleeves or guards. 
     
    3. Cable pulling and termination
    • Pull the cable: Use a draw-string or "mouse" to pull the cable through the conduit.
    • Make connections: Carefully strip the PVC sheathing and insulation, prepare the cable joints according to IEC standards, and terminate the conductors to switches, sockets, and light fittings as per the wiring diagram.
    • Use proper accessories: Ensure all accessories, like single-phase intake points, are installed correctly according to regulations like IET. 
     
    4. Final checks and maintenance
    • Inspect for damage: Before and after installation, check the cable for any damage, such as cuts or abrasions.
    • Provide support: If the cable run is long, add adequate support at regular intervals with hangers or brackets to prevent sagging.
    • Test the system: Perform tests like a continuity test to ensure the system is wired correctly and safely.
    • Protect from environment: If the cable is in a harsh environment, consider additional protective jackets or coatings.
    • Regular maintenance: Periodically inspect the entire system for damage or wear to ensure continued performance and saftey