Bs locks

[kendale]

If I fit a Bs lock to a door it is only Bs as long as I fit the correct keep that came with the lock, If I alter the spec and fit a Bs lock with a rebate kit I know longer have a Bs lock nor do I have the kite mark for bs on the new faceplate that came with the rebate kit, the lock is only Bs if i fit exactly what is in the packet exactly as it was tested, If I change the screws that hold the lock to say 13mm screws instead of 25mm for example do I still have a Bs lock?? yours views on this im sure would be interesting.
Regards

[Rockford]

Good points Ken, particularly on the keeps. Lately, when I've been replacing a mortice lock, I've also replaced the keep (to get the practice). Prior to this, I didn't bother if the keep was a full box variety.

[pinky]

this link from era states what a lock must be to attain bs rating for those not familiar with what a bs rating is;
www.era-security.com/acrobat_files/mort ... d%20locks'

i emailed era last week to enquire about this for a trainee, there answer was that if an era invincible rebate kit and invincible lock was ordered, then as long as original era product is used , it would retain the bs rating.
its worth looking into this fully for your own peace of mind.

[jason]

My feelings on this would be that the lock (not the screws) would remain as a BS lock, if the rebate kit is the same as the manufacturer then I "think" that you have done everything "reasonable" to ensure the integrity of the locking system.

I think that you'd be really unlucky to get someone that bloody minded looking at your work though.

[kendale]

Once you fit any rebate kit to a Bs lock you lose the Bs which is why you dont find a kitemark on a rebate kit, if you are fitting a rebate kit the keep is going into a second door which means the second door is closed by bolts or whatever and is not secured as tested, the rebated keep has been changed also now which is why you lose the Bs rating, I was simply wondering how you get bs rating on a rebated door.

[pinky]

ive emailed chubb to ask them for a diffinitive answer on this.

[oldlock]

The lock test is complete with the screws. if you read the standard it is invalid if you change anything. technically if you key alike more that 6 locks it loses the standard - does that make sense ?

Paul

[jason]

Very few things in English law make sense - taking this to the Nth degree the lock would fail the BS rating if you used larger/longer screws than those supplied.

Don't forget the firearms legislation here - an associate from many years ago was a bank manager, his Chubb safe would not be accepted as a firearms locker as the hinges were external, yet a "cheap" sheet steel box was acceptable!

[pinky]

a definitive answer on the bs lock direct from chubb and from bsi, this is fact and direct from those that set the standard and from chubb.

No british standard currently exists for a rebated door , therefore if a rebate is fitted to a door then the lock loses the kitemark and is no longer a bs3621 lock.

so if an insurance company insist on bs3621 locks, and you have rebates then you must change doors to comply as no bs rateing can be given to a rebate.

so as ken says , as soon as you alter the original, ie fit a rebate, the locking system is no longer bs3621.

[toomush2drink]

Maybe we need to fit a bs lock at the top and bottoms of the doors in to the frames to keep it bs rated for the insurance. Just think 4 keyed alike locks means more profit but just a nightmare to fit as you have to remove the door to cut in the locks