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Hi all       got called to a house to day the client whats the programmer moved from the cupboard to a wall outside . But does not wont the optimizer out side he would like a nice new one put up has anyone done this before and how Regards  

Hi all          Just got the EICR back to day and going thought it , and sorting out all the codes 2 and 3 out          which one of them is , The PFC exceeds the board of the mcbs which is  3 phase 100A          with this it has a BS 88 63 amps fuse on the other side ,          its the way...

An A,c circuit has an Inductive reactance of 13ohms ,A capacitive reactance of 23ohms and Resistance of 18 ohms calculate the impedance of the circuit   is the formula  XL =2 x 3.142 x 13 x 23= (18 + 18.78) =  Which formula to use 20.59 

Hi All    looking for a wed sight that will help with installations think you have to pay about £50 pound to join any web sight like this on the net  regards 

Hi All Got asked this today ,The need to comply with the test values stated in the I,E,E Wiring regulations. looked in the wiring regs in chapter 6 .and i come up with everyinstallation shall ,during erection and on complrtion before being put into service be inspected and tested to verrify...

HI all Got a Alphatek Tek 1601 AutoRanging Insulation Tester, been used some wear and tear out of date for calibration, also a fluke multimeter 1651 just pm me and make an offfer .the fluke is in date for calibration

Hi all mind blank The current in a coil changes from 5A and 2A in 0.05seconds and induces a voltage of 30v in the coil, the inductance of the coil is = 2x 0,05= 30v ,If a current consists of two resisters of 5ohms and 2ohms are connected in series,If a current of 5A flow in the circuit...

Hi all back on night shift A conductor has across-sectional area of 20mm2, a lenght of 48m and is made of material with resistivity of 0.02 u ohms m .Its resistance is

Hi all back on night shift The current to a tungsten-fileament lamp at the moment of switch on = is it is lower than the running current or significantl greater than after a second or so:Spam2

HI all back on nite shift A 2.5 kw heater is in use for 7.5 hours daily and energy cost 7.1p per unit. the total cost of running the heater over a month of 28 days is =

Hi all Here is one, A current of 4.5A flows in a 3.5ohms resister for 5.5 minutes. The energy dissipated is , can anyone refesh this old mind of my and show how its done thanks

Hi all a conductor has across-sectional area of 20mm2 a length of 48m and is made of material with a resistivity of 0.02uohmsm, its resistance is i get 48 can anyone remember me how to work it out thanks

HI all A cuurent of 26ma flows in a circuitwhen a 24V supply is connected to it its resistance is 923 or 9.23

Hi all Can anyone remind me how to do this again ? calculate the current taken by a 100 wat lamp having a working resistance 0f 200ohm

Hi all Any help would be good thank , I came across a link,for a check list for a CU change, and wiring size last week ,I can't remember were it was any help would be grateful Thanks

Hi all Got a call today about an intercom systems for a old man , ITS GDX phone he had one in the corridor ,which someone move to the sitting room and another one installed in he's bed room, Had a look at it only 4 wires o/w o, b/w, b , The problem is it does not buzz at all . But you need to...

HI All got a call today got a splitter freeding 4 room an internal booster feeding 1 of the rooms coax came out ,and now all the rooms don't work headbang

Hi All is it possible to feed off the HD box in one room to feed another tv in another room and if so how

eveng all, Would appreciate your input on the following. How do i go about picking the right size swa cable to use, on single phase using 32 amp braker or 3 phase

Hi, well in a nut shell im 38,Done satellite and aeirial course Past CAI test I need practical hands on experience of the trade and therefore i will work for FREE!!!!! Im 100% reliable Any where around the Dundee Perth area please. Go on, give a bloke a chance, ive done this off my own back...