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Voltage drop

Hi guys I wonder if someone can give me a bit of their advice. I have a customer who owns a medium size factory, he wants me to install a two sounders 230volt in an area so it warns people that there is a heavy vehicle coming, operated by a switch in the same area, by personel who are given...
- Dazzol2009
- Thread
- Oct 24, 2009
- electricians' talk price sounder voltage voltage drop volts
- Replies: 3
- Forum: Electrical Wiring, Theories and Regulations
J
Electromagnetic door..

Hey guys Just been given a set of plans to price from and the electromagnet smoke alarm operated door has cropped up.... Not had any experience with these before. Any ideas on how they link into the smokes? Relay? Guess i should wire in a push switch to release the door as well. James
- jim_jimmy
- Thread
- Jul 21, 2009
- alarm aus door electricians' talk electromagnetic panel relay sounder
- Replies: 5
- Forum: Australia
Q
smoke alarms in office premises

hi there, i got a job to fit smoke alarms in office premises, it is 7 office rooms + kitchen. i am not sure whether it should be fire panel with zones or shal i just fit regular interlink domestic smoke alarms? what government body will inspect and give approval for this type of job? thanks for...
- quickspark
- Thread
- Feb 2, 2009
- alarm alarms electricians' talk office premises smoke smoke alarms sounder
- Replies: 5
- Forum: Business Related

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