Electrical Maintenance Questions and Answers for Viva

Answer-1: Electrical maintenance is the process of ensuring that electrical equipment is kept in good working order. It includes inspecting, testing, and repairing electrical equipment as necessary to prevent problems that could lead to a loss of power or an electrical fire.

Answer-2: Electrical installation and maintenance is the process of installing and maintaining electrical systems and equipment. It may include tasks such as installing wiring, repairing or replacing damaged equipment, and inspecting electrical systems for safety.

Answer-3: Electrical maintenance is crucial for preventing equipment failure, ensuring safety, minimizing downtime, and optimizing the performance and lifespan of electrical systems.

Answer-4: The primary objectives of electrical maintenance include ensuring electrical safety, maximizing equipment reliability, reducing downtime, improving energy efficiency, and complying with regulatory requirements.

Answer-5: Common electrical maintenance tasks include visual inspection, cleaning, lubrication, tightening connections, testing electrical parameters, replacing worn-out components, and conducting preventive maintenance activities.

Answer-6: The frequency of electrical maintenance depends on factors such as equipment type, usage, environmental conditions, and manufacturer recommendations. It can range from daily checks to annual inspections. Regular inspection of electrical systems allows you to find and fix any potential problems before they turn into bigger, more expensive issues.

Answer-7: Neglecting electrical maintenance can lead to equipment failure, electrical fires, safety hazards, production downtime, increased energy consumption, and regulatory non-compliance.

Answer-8: Safety precautions during electrical maintenance include de-energizing equipment, using appropriate personal protective equipment (PPE), following lockout/tagout procedures, and adhering to electrical safety standards and guidelines.

Answer-9: Thermal imaging is used to detect overheating in electrical components, connections, and systems, which could indicate potential faults or impending failures.

Answer-10: Power quality analysis helps identify issues such as voltage fluctuations, harmonics, and power factor problems, which can impact equipment performance and reliability. Addressing these issues through maintenance can improve overall system efficiency and longevity.

Answer-11: proper grounding is essential for electrical safety, equipment protection, and effective operation of electrical systems. It helps prevent electric shock, reduces electromagnetic interference, and provides a path for fault currents to safely dissipate.

Answer-12: A CMMS helps streamline maintenance workflows, track equipment history, schedule preventive maintenance tasks, manage spare parts inventory, and optimize maintenance resources, leading to improved efficiency and cost-effectiveness.

Answer-13: Insulation resistance testing helps assess the condition of insulation in electrical equipment and cables, identifying potential issues such as moisture ingress, degradation, or contamination that could lead to insulation breakdown and electrical faults.

Answer-14: Electrical maintenance can identify and address issues such as voltage imbalances, power factor correction, inefficient equipment operation, and energy losses, leading to reduced energy consumption and lower utility costs.

Answer-15: Steps in developing an electrical maintenance plan include conducting a thorough assessment of equipment and systems, identifying maintenance tasks and intervals, establishing priorities, assigning responsibilities, and implementing monitoring and tracking mechanisms.