GRADE 2 SYSTEM

[macsecurity2011]

Hi guys,

question, on a grade 2 alarm system do your junction boxes require to be tampered to comply with BS

I know this is the case on grade 3 and above systems but i did not think it was the case in grade 2 systems.

Can anyone shed any light on this?

I have posted this 3 times but for some reason it has never went on the forum so third time lucky!

Thanks

 

[oasistechnical]

as with all graded system (excluding grade 1) all connection to junction boxes, (and all other devices) must conform to EN50131 and be graded
as such,

if you fit a standard (ungraded) junction box, on a grade 2 or 3 system, the system will have a grading of 1,
as its the lowest graded item on the system.

try to bring all cabling from the device to the end station at all times.

the only time we use a junction box is for roller shutter contacts, PTS buttons (push to set) Chubb lock switches, we try not to use them to be honest, its just another path or resistance for the panel to look at.

i hope this helps

Oasis

 

[mryoung]

Its optional on grade 2

Would provide the protection anyway, you really should know this if your installing to grade 2, got a copy of EN/PD??

 

[macsecurity2011]

Hi thanks guys,

It was for a roller shutter contact as i also do not fit junction boxes. I was not 100% sure on this as mentioned i knew it was defo the case for Grade 3 and above but i did not think it was the case for garde 2.

The reason i dont like fitting them with roller shutters is they can often bring up high resistance faults at a later date as i do not think the j/b's are the best. I prefer to solder all my joins together at shutters thus eliminating any future problmes.

mr young thanks for your reply but im sure you have seen the regs book, im afraid to say you cannot know everything off by heart!

sometimes you need a hand from time to time, and for clarification if i did not knoww the answer or could not find it then i would fit the j/b to be on the safe side thus in keeping with the regs.

Thanks

 

[caretech]

Its optional on grade 2

Not optional ! like oasis says if a jb is not tampered than the complete system will be downgraded to a Grade 1 system.

 

[mryoung]

you cannot know everything off by heart!

I dont 100% agree with that, but i hear ya!

Wasn't having a dig fella, i'm sorry if i came across that way.

Now you know anyhoo

 

[mryoung]

Its optional on grade 2

Not optional ! like oasis says if a jb is not tampered than the complete system will be downgraded to a Grade 1 system.

Not what 50131 says

 

[Alarm]

G2 can be untampered if concealed IIRC.
In my book totally wrong.

 

[mryoung]

Untitled

• mryoung
• 22 Mar 2011
• 1

Wrong in my book too, for all it takes to do it, just do it

 

[Alarm]

Agreed, had the discussion with a director and he maintained a JB in a droped ceiling could be untampered.
Still fitted tampers

Last inspection I had got one A two B`s. Turned out the B`s were for the files in the office. Not my job, but still annoys.
Was simple stuff too!

Is SSAIB easier

Thats bound to cause a row

 

[mryoung]

Is SSAIB easier

errrr yeh LOL

and nsi get more work than ssaib










only messin ssaib peeps

 

[macsecurity2011]

Thanks for your help, appreciated. That clears it up.