Zone or group-based lighting control is a method of managing outdoor lighting through a centrally located control cabinet, which administers the operation of multiple lighting groups.

This system's key components include a central control unit, magnetic starters, electric energy meters, and protective devices. Lighting is regulated by programmed on-and-off sequences of magnetic starters that are connected to various lighting groups. The system's diagnostics involve monitoring the electrical circuitry for voltage and current, using an energy meter that continuously measures power consumption.

Advantages

The benefits of this approach are its cost-effectiveness and the simplicity of maintenance. All control components are housed within electrical cabinets, offering easy accessibility for maintenance personnel without requiring aerial work platforms.

One downside to this system is the inability to pinpoint the exact location of lighting faults. Moreover, this approach is not suitable if the lighting grid lacks centralized power points.

This control solution is ideal for projects with limited funds and where precise fault localization is not a priority. It is best suited for managing lighting in small communities, lightly trafficked roads, and the peripheral areas of major cities.

Cost Analysis

The zone/group-based lighting control solution is economical, demanding minimal initial investment. By adjusting the lighting schedules and incorporating the partial shutdown of lights during certain intervals, energy savings of up to 50 percent can be achieved, thereby reducing electricity costs.

In conclusion, zone/group-based lighting control systems offer an efficient and budget-friendly option for outdoor lighting management, particularly suited for areas where sophisticated fault localization is not critical. With its centralized control mechanism and simple maintenance provisions, it provides a viable solution for small communities, lesser-trafficked roads, and city outskirts—where investment funds may be limited. While it may not offer the pinpoint diagnostic capabilities of more advanced systems, it compensates with significant potential for energy savings and reduced operational costs. Overall, this control strategy can be a smart choice for municipalities and organizations looking to implement cost-effective lighting solutions without compromising on basic control and energy efficiency.