ᐅ Second Escape Route Problem Due to Electric Roller Shutters

Steffen80 schrieb:

Yes, that's true of course. In our case, ALL shutters go up IMMEDIATELY as soon as a smoke detector alarm sounds. Of course, that doesn’t solve the power outage issue... no question about it.

When I think about it... maybe the shutter motor for the second emergency exit could be connected to the backup power supply (from the BUS). BUS, smoke detectors, etc., are already connected there anyway... such a motor (for a standard window) shouldn’t consume that much power.

Steffen80 schrieb:

A standard window motor shouldn't consume that much power.

Around 100 watts (order of magnitude)

Maria16 schrieb:

Is it really preferable for you to not get out at all because the first and only escape route is filled with smoke? Feel free to explain to me why it’s better to use the first escape route only with assistance rather than relying on the second escape route.

My point is simply that the current requirements are, in my opinion, not fully thought through. I agree that the second escape route is necessary and important, but with the current regulations, it feels only half-complete. If I stand at a window on the upper floor (say a sill height of 1.1 m (43 inches)), I would have to accept a drop of about 3.5 m (11.5 feet) without a ladder to quickly get out of the building. Or I would have to wait until someone brings a ladder. A more reasonable requirement would be, for example, that a second escape route on the upper floor must always be equipped with a foldable escape ladder (under 150 euros). Then the issue would be properly addressed.

We installed an Indexa emergency escape ladder with climbing fixings in the attic. The problem was solved not because of regulations, but by briefly thinking about how to get down from the very top in case of an emergency.

Strahleman schrieb:

My concern is that certain requirements here seem incomplete to me. I think having a second escape route is correct and important, but with the current standards, it feels only partially thought through. For example, if I am standing at a window on the upper floor (say a sill height of 1.1m (3.6 feet)), I would have to risk a fall from about 3.5m (11.5 feet) without a ladder to get out of the building quickly. Or I have to wait for someone to bring a ladder. A more practical requirement would be that a second escape route on the upper floor must always be equipped with a foldable escape ladder (costing under 150 euros) to make it a complete solution.

How great it is to complain about regulations for not going far enough... As Steffen already said, no one is stopping you from installing an escape ladder or similar (but I guess people would complain even more if it were mandatory, about government interference and forcing people to spend money).

That's correct, it actually requires a crank handle. Even with Venetian blinds (good luck with that ).
But in practice, you rarely see crank handles. We don't have any either, despite having Venetian blinds in front of the affected window.

@Steffen80
You can't power anything with backup power using the bus system — 30V DC vs. 230V AC. A motor requires much more power than what the bus voltage supply can provide.