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If you can do the duct system, best bet would be cameras VIA a DVR that can be used over a LAN you could run a LAN cable at the same time. Wireless can cause problems including health! Be interested to see a diagram then could advise better. John.

Nice set of wireless systems, what they dont tell you is the problems you can get and on a personal basis I would not want to be living with 2.4 GHZ floating around my house, and as to IP cameras even with compression ratios they can use up your network bandwidth. With regards to breast...

The thing is no matter how nice a customer is wolf in sheeps clothing. No "private" jobs for family or friends take the price like it or leave it. Even one customer stated that I made a racist remark, that he had CCTV with sound recording. Oh Dear not registerd with the ICO and highly...

There are good wireless systems out there now, although I would not want to install wireless unless have too (too much EMFI in the air as it is. Cant see any company not doing this as there is a BSEN number for such devices. Be it a TV coax, alarm cable telephone cable there is regs for...

Okay it is "inverted" to 500V you still get the voltage through the transformer though otherwise when I was at skool I would not have been able to use a 9 volt battery a buzzer and a hornby transformer to make a rather nasty shock machine! 12 volt coil battery buzzer 240 coil couple of long...

Rule of thumb signed job sheets emergency contracts for small works contracts for larger works deposit etc. Written quote even on emergency hourly works. Terms & Conditions on reverse. Also handy in front of the customer instead of taking notes use a voice recorder as well then that way...

How on earth can you have done the the 17th and not know how to do these "basic" forms? Any course would install the requirments for testing as there is some difference from the 16th edtition etc.

no need for 2nd rcd if in the house but deadly installation in any case rcd will only work when both live conuctors go through it as works on balance. I am of the opinion that diy instructions on this board should be removed people should not be doing this type of work.....

As this is external work it must be done by a Part P registered electrican and it is "illegal" to DIY work outside. If DIY you have to get buildings control involved. The cable is probably 1.0mm and will not take a bigger breaker OR the extra load. There is a way but as you really should...

wire the pump (if not in the boiler) from the pump terminals in the boiler. The boiler then controls the pump and runs the pump if needed. It only needs to get the hot water away so it does not lock out. If there is no pump overrun from the boiler it probably does not need one. Did hear...

Erm is maybe DC but it is pulsed DC otherwise it could not keep the volts at 500V this is what caused the damage. The transformer would have hence put 24volts into the panel at low current. Which knowing this panel may have damaged it. But depending on what version it would need a reset...

No they dont "normally" as most houses use double insulated telephone sockets. If you had a house and wanted a "metal" payphone then they WOULD do. All I am stating is the regs which even most electrical contractors do not abide to when changing to metal telephone points. Most that are...

Thats because BT take the earth from the house main earthing terminal!

Has protection and the line runs at 50 volts. there are various protection mechanisms at the exchange and if a person is not careful then these protection methods can operate. I have been there and done that also the plates by a matter of course, should be earthed to a BT earth. You can get a...

For want of a better phrase there are protective devices at telephone exchanges using the word "fuse" was the best I could come up with in plain english. Also as a point you can get a nasty shock as the line is 50 volts I am weary of the socket as well as it does not look standard and if he...

The BT master is the responsibility of the network up to that point just as your electric meter is. Changing this socket is at your own risk as it does not have the test point needed. Also there lies a problem whereby if you get it wrong you could blow the fuse at the exchange. Looking at...

Maplin electronics do some good gear at decent prices. (I say some but not all so be careful.) You can get wirless transmitters and recivers or if you have power (which you need at both ends anyway, then an A/V sender may do the trick. These are quite directional and you can set the code...

Is worst case you are better off owning up to it especialy if council run as they will more that likley find the problem anyway especially if the joint or conections are not right. I have seen people done over things like this and even though you were "moving it" you had not right to without...

You have blown the fuse in the main transformer at least if not the electronics. As to the legality of what you did, just because it is in your flat does not mean that you have a right to mess around with it. I presume you pay a service charge or somthing? This is for these types of systems...

If you are installing CCTV to protected your property (even cars in the street) then this is totally legal to do. You do not need to register under the DPA Act as it is a domestic premises. As a word of advise the best camera angle is one at low level as used in evidence you will need to make...