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Why would you have the alarm set whilst at home playing home theatre ?? The reviews I found seemed generally good, but thanks for feedback.

Oh. Are they unreliable ?

I know they seem to be despised on here, but I have yet to see any valid reasons or explanations why ? Anyone tried/had problems/any feedback on the Visionic Powermax system ?

Alteration or addition ? Is the circuit protected by an RCD?

Wow, obviously mr unpopular then, 33 views and no replies ! Sorthed it, it was a faulty external siren.

Hi, I've wired one of these, dead simple (should have been) just two PIRs and an internal speaker. Couple of problems: 1) When putting the battery jumper to "ON" on the bell box, the siren sounds, but remains on even with cover back on. Stays on even if hold tamper switch closed manually...

Stilll waiting chri5 ....

SS, Yes, table 41.5 is in the section for TT systems. However, as pointed out earlier it is referenced to from the TN systems section (411.4.9). BS7671 isn't telling you enter the value in table 41.5 as the maximum permited, niether does it say anywhere that the value in any other table or...

Many of the figures given in tabulated form are not exactly the same as the calculated value. Consideration will have been given by the authors (I assume) to this figure and deemed acceptable given that it is 0.01V above the calculated value. As the content and values of BS7671 are not...

Garymo/Spark123 you seem to have completey missed the point. My OP relates to the entry on the EIC for a maximum value, not what you measure, what is wrong, what you expect, what you would be happy with, what is acceptable or whatever. What's it matter ? I think it matters that an EIC is...

No not having a dig at you. My facts are right. I said you were entering incorrect data on the EIC for maximum Zs permitted. This is because you were not entering 1667, you were entering some other value, which is not the maximum. You were then applying a correction factor to this value for...

Sounds better ? why ? Its written in black and white in the regs so how can it be wrong ? Because its .01 V above V=IR <50V ? It may be contradictory, but that is the MAXIMUM value. in the book. Funny but a few days ago you were entering incorrect data and then also reducing that by 20% because...

In my opinion when completing an EIC, and I have to fill in a value that asks me to enter data from current BS7671 wiring regs, I generally tend to enter the data as published. i.e. if table 41.5 dictates that the maximum value os Zs in this instance is 1667, then I feel inclined to enter the...

Garymo: I think 1667 took less space than 1666.66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666....etc :D podooser: Yes, sounds correct to me. other than the measured Zs needs...

erm, try table 41.5 !

Chri5, if you are to make such personal comments then have the decency to respond to my reply or apoligise if you have subsequently discovered you were wrong ! :lol: ] always suggesting what ?? when have I suggested anyone shouldn't be in the industry, ever ????? I gave helpful...

:? On what basis/evidence/fact can you possibly disagree having read the appropriate regulations ?

In the ECA quote, it does mention testing for continuity. Typically when testing for continuity in say an R1+R2 fashion, 1667 Ohm may be deemed too high or raise alarm bells ! Thing is that the above ECA artical is not to be read as being the Regs. The regs, as I have demonstrated are quite...

Cant help but fell short changed from this post. Full of promise and intrigue...Stop teasing, what was the question ???

Surely not my interpretaion, just fact. (backed by the NICEIC) The thing is, one section of the regs is referring to data in a table in another section of the regs. I assume its to prevent duplication. If you divorce yourself from the issue of where the table is, thens its not really that...