Apprentice with a tape measure problem

My communal front door has a "push to exit" button to release the maglock, but the actual door is a pull-to-exit.

Owain

(manual) Sliding doors are particularly troublesome in public areas.

That's the problem it confuses some students who stand and pull a door that should be pushed, it can take until the second year until the figure it out ;-)

My cat worked out which doors were pull and which were push (he could do the push ones by hanging from the handle, but couldn't pull).

So now undergraduates are thicker than my cat?

Owain

I'd blame the staff. ;-)

Not sure, but how did your cat push a door by hanging on to the handle ?

Students do learn though after 3-4 years of being here.

He jumped up and caught the handle, and forward momentum was sufficient to open the door.

We still had to get up and close it after him, of course.

Owain

Well of course, he expects nothing less of his staff.

Well there's another story. Different apprentice watching me get out of certain building to get the the van. Now the trick is to either drop the door exit break glass or if it's a plastic one to just press it. You just reset the BG when you come back into the building.

He got confused between the green door exit BG and the red fire alarm call point. And the fire alarm was linked to the fire station:-(

Red-green colour blindness is surprisingly common in men... Lots of online tests.

Andy

In some places here they have them right next to each other which is pretty stupid thing to do.

Not ideal for a sparks, I'd say?

Wasn't that one of the reasons the live/neutral wire colours changed.

Yes - but more for the general public.

I worked with a guy who while checking instrumentation on the exhaust of an industrial, flexographic, print machine (the sort of thing that prints a million crips packets or more a day), pushed the emergency stop to ensure that no-one attempted to restart it (only for his readings, he didn't need to access the machine itself) - only he pushed the green one, instead of the red one and filled the machine with dry powder from the extinguisher system. It took days to clear up.

SteveW

But wasn't the yellow stripe added to the green for the benefit of the colour blind, whether they be electricians or customers?

If there aren't any color blind electricians, why is there a yellow stripe on the earth wire sleeving?

In message snipped-for-privacy@news.eternal-september.org>, Terry Casey snipped-for-privacy@example.invalid writes

First activity after being accepted as an electrical engineering apprentice was a session with the company doctor and the Ishihara colour vision test.

Yes, again.

As opposed to flex? Why have two standards? The whole idea was to have just one.

He is not colour blind, he is a thick bastard.