Electrics

Please help I need some guidance on the phone line connection to our pending alarm installation. The alarm control unit will be mounted in a location where the builder has already installed a fused – non switched, 13amp socket and extension* phone socket. *We have an External BT NTE box so all the sockets inside the house are essentially extensions from the External BT NTE ‘master socket’. The phone socket next to where the alarm control will go has its own dedicated BT line and has been wired by BT to be the only socket in the house using this dedicated line number. My question is related to the extension socket currently in place for the alarm as it’s just a normal t…

new extension to house and need hard wired fire detection with battery backup could i get away with fitting smokes in my house on the intruder alarm as it gives different sounds for fire and alarm? as they are technically mains powered with battery back up, instead of the mains powered ones whitch are more expensive plus i want to link them to the intruder alarm anyway for signaling purposes. thanks

Hi installed some lv down lights recantly 1 x 6am type b feeding circuit but when the lounge lights are switched on which are controlled by lowv oltage dimmer you get a hum at the fuse board from the breaker ints not that loud but if you put your ear near the board u heare it i have noticed this before when dimmers are fitted to lv lights there are ok when a switch is used any one else had this happen.

Got site with cctv, & as header want to swap out orange sodium bulbs for white bulbs. Ordered 5 bulbs off webby (cost £130) & read info on packet. it dont tie in with info from webby! Now spoken to supplier & manufacturer again & still not convinced. bulbs I've got says metal halide on sleave, despatch note says white son lamps, info from manufacturers tech says might be ok if casing meets UL1598 (270 pages long, but speed read it & no help). info from supplier tea lady says direct replacement. ignitors asside, anyone with any idea?

I have moved into a house with a karizma alarm, it is showing as a fault, but asks for a E CODE, the company that installed the alarm have gone bump, does anyone have any ideas, local alarm firms say they don't deal with it?

went to takeover & upgrade (ish) an AIR (point to points) system today (5 poles, widest 100m apart) fitted panel & got 60vac earth to 0v, mains on, 40vac mains off (phase dissed on panel only). seems installed with cat5 running alongside mains armoured. systems working but will go back & filter everything. mains into panel get 10vac across neutral & earth. aint come across that high neither to any of the other readings? All readings seem manic. anyone seen similar or got ideas?

Thought about this today, understandably it's considered a no-no. Was driving along today and happened to look up at a 10 meter high sodium arc lamp post with a camera on top. That's a lot of parallel cable. Purely for interest, does any extra care have to be taken over screening in this situation?

required with wireless remote indication required, any sources? thanks Paul.

This is a Bosch Abacus Evolution panel. One of the reasons I bought it was because of the built in dialer. However, I gave up on trying to use this because of the lack of documentation at the time, and the fact that it has to do everything via the Bosch Host Computer. I got myself a Menvier SD2 Dialler and it's fine. Input 1 of this, is now connected to the 'bell' output. If I test the bell, i get a text message telling me that the alarm has gone off. I'm connecting Fire Detectors to the panel now, and I want to utilize 'Input 2' of the SD2 to send me different text message if the Panel detects that one of the fire detectors has triggered. The Alarm Panel provides sever…

Hi, Hope someone can help me here. I've got builders doing some work and they've had to remove the outside box but haven't made a note of the wiring! It's now time to reconnect it but they've no idea how to go about it. There's 4 colour colded wires, yellow, red, blue and black which seem to come from the following in the control panel: yellow - tamper red - ho+ blue - bell black - ho- In the box outside there's a row of connections: BT-, ST, TR, TS, ENG, +R, -R, +H, -H, BT+ It's a system i've inherited so i'm not even sure who installed it but if anyone could give me any ideas, i'd really appreciate it. Many thanks....

hi all..dont know if this in the correct place ..can i connect a solar panel charger to the battery in alarm panel as a back up to the mains charger if so is it just a matter of conecting the panel wires to the battery..thanks

just fitted a new WYLEX 17th edition dual RCD consumer unit in my house. However, im now having problems with one of the RCDs. it keeps tripping! The RCD concerned is an 80amp 30mA which feeds the shower and the cooker. Ive got the 63amp 30mA RCD feeding the socket and light circuits. This sound ok? ....When you use the test button on the 63mA RCD, both the RCDs trip. However if you test the button on the 80mA RCD, only that RCD trips. ....When all the circuits are turned on together, eventually (1-15min) the 80mA RCD trips. ....If all the circuits are on and you turn on an appliance on the socket circuits (either one) the 80mA RCD trips which doesnt even feed them.…

I'm trying to figure out the layout for some spots for my hall. I've attached a rough sketch of how I think they should be but I want to make sure before I commit. My ceiling is covered in chalk lines and I'm not sure what way to do it

Whats the possible fault when you get a voltage between neutral and earth trying to sort a job where im getting about 15 volts.

One for all the sparkies out there. I'm proberbly gonna get a rewire done (started with a bathroom fan lol), maybe part, maybe full. Radial ccts there at the mo but think I prefer the ring idea (on a whim, I'd say I prefer 2 routes for earth wire). Apart from poss cost, what advantages are there to radial?