Southeastern Class 395 Doors

[Bungle73]

OK, why the hell do they take so long to open? I know that style of door has supposed to have been used for 100 years in Japan or something, but they are very annoying. You press the button and nothing happens for 10 seconds or so, so you're never sure if it's going to open or not; very frustrating. On every other train I've been on the doors open immediately you press the button. Is there some reason for this delay in opening on 395s?

 

[district]

When the trains picks up speed the doors seal shut, the delay is just the seal releasing.

 

[150222]

Class 158 doors take ages to open as well. However this is more due to poor design rather than safety.

 

[jon0844]

At the very least, there should be a confirmation sound when you press the button (and lights flashing on the button for the deaf) so you know they WILL open. If they don't do that (I can't remember now) then it's pretty bad design.

 

[Hydro]

The doors are pressure sealed to prevent banging when passing other trains at high closing speeds. When the button is pressed, the pressure is released. Watch the door and it moves inwards slowly before sliding open.

As the train moves off, the doors will seal again, moving outwards against their seals with a quiet hiss.

 

[HSTEd]

Shouldn't the seal release based on the speedo?
Its like Pendo doors take forever to open, I swear Mark 4s don't take that long.

 

[466.networkers]

With Pendos, they take a while for the steps to descend.

As for 395s, it is merely the seal releasing. Had some funny looks from people waiting for me to open the door as soon as the interlock is released and the light/sounds start. :P

 

[Bungle73]

At the very least, there should be a confirmation sound when you press the button (and lights flashing on the button for the deaf) so you know they WILL open. If they don't do that (I can't remember now) then it's pretty bad design.

Can't say I've noticed any of that.

There was a time I pressed the button and nothing seemed to happen; then I saw people getting on at another door, so assumed my door was faulty, and had to run to the other door.

The doors are pressure sealed to prevent banging when passing other trains at high closing speeds. When the button is pressed, the pressure is released. Watch the door and it moves inwards slowly before sliding open.

As the train moves off, the doors will seal again, moving outwards against their seals with a quiet hiss.

I see; thanks. That makes sense now. I have noticed a noise coming from the doors after the train leaves the station.

 

[MCR247]

The doors are pressure sealed to prevent banging when passing other trains at high closing speeds. When the button is pressed, the pressure is released. Watch the door and it moves inwards slowly before sliding open.

As the train moves off, the doors will seal again, moving outwards against their seals with a quiet hiss.

Is it kind of like when slowing down, just before you stop on a desiro, the doors make a sound, and the same happens when speeding up?

 

[Pumbaa]

Is it kind of like when slowing down, just before you stop on a desiro, the doors make a sound, and the same happens when speeding up?

Mechanical lock - engages at 5mph.

 

[466.networkers]

Mechanical lock - engages at 5mph.

On a 395 it happens at about 15-20mph, definitely faster than 5mph.

 

[MCR247]

He was replying to my slightly OT post about 350s and desiros

Thanks Pumbaa

 

[Yew]

I've never noticed problems with 158's. Then again, all I have to compare it to is pacers, super sprinters, and hst's.

 

[150222]

I've never noticed problems with 158's. Then again, all I have to compare it to is pacers, super sprinters, and hst's.

On a 158 they engage immediatly however take at least 5 seconds to open fully (and close too). Instead of on (example) a 150 where they fly open.

 

[Hairy Bear]

On a 158 they engage immediatly however take at least 5 seconds to open fully (and close too). Instead of on (example) a 150 where they fly open.

The swing plug doors on a 158 have a massive over centre spring which has to be overcome by the building air pressure when the door open button is pressed.Thats why they take time to open. Have patience one and all !!.

 

[michael769]

I've never noticed problems with 158's. Then again, all I have to compare it to is pacers, super sprinters, and hst's.

Never noticed the bang when the mechanical lock releases after the motor starts trying to open the door?

 

[headshot119]

Ahhhh so that's what causes the bang.

 

[mole90]

I'm sure the 395s are pressurised for running in the Thames and London tunnels - you can sometimes see the windows flex when leaving the London tunnels at Dagenham heading coast bound.

The most annoying thing is the numpties with no patience trying to open the doors - furiously tapping the open and close buttons. Subsequently the door opens and almost immediately starts to shut again on everyone trying to get off behind them!

 

[Rhydgaled]

I thought the reason 395s didn't have neater plug doors like a 377 or mark 4 coach was that the doors installed on 395s were faster ones similar to class 150 or 376 doors. Since you're all saying their doors are slow, and I've no experience of 395s, it seems I assumed wrong, and the appearance of the 395s was (very slightly) damaged for no good reason.

 

[junglejames]

The doors are pressure sealed to prevent banging when passing other trains at high closing speeds.

Shame it doesnt seem to work then!

 

[Hydro]

The doors are pressure sealed to prevent banging when passing other trains at high closing speeds.

Shame it doesnt seem to work then!

It seems to work fine every time I've been on one.

 

[ralphchadkirk]

It seems to work fine every time I've been on one.

Same here. I've didn't notice a problem with them - although have never travelled in passenger accommodation.