Testing emergency lighting.
Duty, interval, evidence.

Who has to test the emergency lighting?

The duty normally falls to the Operator of the building – for workplaces, the employer. They have to make sure the emergency escape lighting stays serviceable, that it is tested, and that the tests are documented in a way others can follow. Once the installation is handed over, the installer is out of that responsibility.

The basis for this sits in several places: the German workplace ordinance with its risk assessment, the industrial safety ordinance covering work equipment and installations, the state building codes and rules for special buildings, and the technical standards DIN EN 50172 and DIN VDE V 0108-100-1. Which of them are binding for your building depends on its use, its size and the building permit.

The work itself can be contracted out. The responsibility for making sure testing happensstays with the operator. That is the point most often lost when staff or responsibilities change.

Which test, and when?

The intervals from DIN EN 50172 and DIN VDE V 0108-100-1 at a glance:

Scale that up: with 120 luminaires and signs, the monthly function test alone comes to 1,440 individual checks a year, plus 120 from the annual duration test. That is 1,560 actions someone has to carry out and record.

The test log: no evidence, no test

Documentation is not an end in itself. The test log is the evidence that the system was operational – at the moment that matters. Each entry typically contains:

• Date of the test
• Type of test: visual check, function test or duration test
• Result, including the luminaires that were not in order
• Remedial action: what was fixed and when
• Who carried out the test

Exactly which details are required, and how long they have to be kept, depends on the rules that apply to your building. A paper test log meets the requirement just as a digital record does – as long as it is complete and can be followed.

Why testing slips in day-to-day life

On site visits we keep seeing the same picture: the system is installed and signed off, but the ongoing testing has quietly stopped. The reasons are rarely bad will:

• The effort comes round monthly. Trigger every luminaire, look, write it down – in a larger building that is half a working day, every month.
• The business keeps running. In production, storage or retail the lights cannot simply be switched off; tests move to the edges of the day and then get dropped.
• The luminaires are high up. Anything that needs a ladder or an access platform gets touched less often.
• Responsibilities change. Whoever kept the test log has left – and nobody takes it over.
• Paper disappears. Folders get mislaid, entries are missing, and the gap only shows up at the next inspection.

The result is a system that may well work – but nobody can prove it.

Why the evidence matters legally

If something happens, the decisive question is not whether emergency escape lighting was installed, but whether it was demonstrably operational . Only the documentation provides that proof. Without it there is no basis for showing that the operator's duties were met – to the authorities, to insurers and, in case of doubt, to the courts.

The same applies to inspections by authorities, fire safety offices or experts: it is not only the installation that is examined, but its documentation too. A working installation without a test log is a defect.

This guide is not a substitute for legal advice. Which duties apply to your building in detail is settled by the risk assessment, the building permit and, in case of doubt, a competent person.

Self-testing luminaires: the walk-round becomes a log

Modern emergency luminaires test themselves. Function and duration tests run automatically to EN 50172 and EN 62034, the result is stored and can be read out as a log. The monthly walk-round becomes a glance at the app.

• The test actually happens – even when nobody has the time.
• The log is created automatically and can be exported as evidence.
• Faults show up immediately, instead of at the next walk-round.
• The effort shifts from walking the building to reading the log.

The Emergency lighting Series 19 from TRiALED works exactly like this: battery in the housing, either 1.5 or 3 hours of emergency operation, testing and logging through the app. An overview of the rules, the technology and the testing duties, with a calculator, is on our page Emergency lighting.

One limitation belongs here: automatic testing covers the electrical function and duration tests. Visual checks for damage, obscured exit signs or escape routes changed by building work remain the operator's job.

Making existing installations testable

Older installations often bring several problems at once: fluorescent lamps that are getting hard to replace, batteries at the end of their life and documentation with gaps. Converting to LED with self-contained batteries and self-testing solves all three at once.

• No battery room, no dedicated circuits: The battery sits in the housing and the luminaire runs off the normal supply.
• No fire-resistant wiring: In an existing building that saves the largest part of the work.
• Documentation from day one: The new installation produces its own logs.

Which duration your building needs, and how many luminaires go where, comes out of the design to DIN EN 1838. More on the basics in the guide Emergency and safety lighting.