Batteries for emergency lighting

Batteries for emergency lights

Power failures and blackouts happen more often than you think. An emergency light, or safety light can help in case of an emergency to quickly and safely leave a building as well as to end a work process securely.

If the mains voltage of the general power supply falls below the value of 75% over a period of 0.5s, the battery must take over the supply independently.

Safety lighting is divided into the following areas:

• Lighting for emergency escape routes
• Anti-panic lighting
• Lighting for working areas with increased risks or hazards
• Escape sign luminaires

In the case that the general power supply fails, a substitute power source is necessary to provide electrical energy to ensure the functioning of safety equipment for a certain amount of time (typically 1-8 hours). With safety lighting, single battery luminaires, group battery systems or central battery systems are primarily used.

Single-battery luminaires

With single-battery luminaires, the lighting is controlled through a maintenance-free battery. This battery is usually integrated in the light and has its own charging and control device. The single battery lights, installation is simple and cost-effective, however the maintenance costs are higher as batteries must be replaced at regular intervals. Additionally, to internal testing facilities, there is a central monitoring system, that provide a fault report if one or more lights fail.