Substation Lighting System Designing

Abstract

Substation lighting system design is a critical component of power distribution infrastructure, as continuous, safe, and efficient lighting is essential to the overall reliability of the electrical grid. Among the various factors that support safe substation operation, proper lighting plays a vital role—particularly for nighttime maintenance, fault detection, emergency response, and general operational visibility. This thesis presents a comprehensive study on the analysis and design of an outdoor electrical power substation lighting system such as fence, main gate, internal road, parking, transformer and switchayrd area lighting, with a primary focus on compliance with lighting standards, safety considerations, and maintenance requirements. The research identifies key lighting zones within a substation—such as the perimeter fence, main gate, internal roads, parking areas, transformers, and switchyards—and analyzes their specific illumination needs. This analysis is based on guidelines from EN 12464-2: Light and Lighting – Lighting of Work Places – Part 2: Outdoor Work Places and TN 59 - 2023, which recommends appropriate lux levels for various substation areas. These standards are integrated into the overall design methodology. To validate the design approach, a detailed case study is conducted on the Bezděčín Substation (Rozvodna Bezděčín). Lighting simulations and calculations are carried out using DIALux software to verify compliance with recommended lux levels, uniformity, and lighting quality. The design process includes the selection of suitable LED luminaires, determination of pole height and spacing, and execution of precise illumination calculations to ensure proper light distribution. Safety measures, such as glare control and high color rendering index CRI ratings, are considered to enhance durability in outdoor conditions. Maintenance factors, including ease of access and luminaries longevity, are also thoroughly addressed. The outcome is a structured, standards-compliant lighting design framework that ensures optimal lux levels, enhances operational safety, improves visual clarity, and minimizes energy consumption. The proposed design serves as a practical and reliable reference for implementing energy-efficient and safe lighting systems in both existing and future substation projects.