Installation and maintenance work involves the setup, testing, operation, and ongoing upkeep of equipment, systems, or infrastructure to ensure they function safely, efficiently, and reliably. This includes installing components according to technical specifications and standards, performing routine inspections, preventive maintenance, troubleshooting faults, and carrying out repairs or replacements as required. The work also ensures compliance with safety regulations, minimizes downtime, and extends the service life of systems through timely and proper maintenance.