buildings

buildings

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  1. I

    Seeking advice on getting side jobs as an Electrical Engineer for Buildings

    I am an experienced electrical engineer consultant in building services, and I am looking to expand my professional horizons by taking on side jobs during weekends or bidding on new projects. With 5 years of industry experience under my belt, I feel confident in my abilities to deliver excellent...
  2. B

    Overhead cables between buildings on domestic property

    Hi all. I've recently bought a bungalow. It currently has a armoured cable between the house and garage which spans less than 1 meter. The height of the cable is 2.3m and directly under this is the side gate to access the back of the property. It's old wiring so will be replaced, but I've had...
  3. M

    twin and earth cabling size for commercial buildings

    Hi, The current carrying capacity tables in the BS 7671 for twin and earth cables are only for buildings that have thermal insulation. I'm working on a commercial building, the inner walls do not have thermal insulation, what can i use for the current carrying capacity of the cables. The...
  4. dlt27

    Timber framed buildings and celotex

    Hi all, I have been asked to install new electrics to a wooden lodge / chalet. It is a single storey very large building with a flat roof. I have a few questions to ask and would be grateful of any answers. 1. Is it ok to wire in Twin and earth or should I be using LSF / LSZH? 2. At the moment...
  5. cliffed

    3 DNO in school buildings

    EICR finding 3 DNO supplies in main building. The front end of building 3p 100 amp TNS, middle Sp 100 amp TNS, other part Sp 100 amp TNCS. Water & Gas supplies are common to this building This been in situ for over 50 years, any comments
  6. snipersmith87

    Main Bonding - Multiple Buildings

    Could somebody please put me on track. Main bonding conductors are sized relevant to earthing conductor (TN-S / TT) or PEN conductor (TN-C-S). On a large installation (Industrial / Commercial) with multiple buildings containing Extraneous parts should ALL the bonding conductors be sized the...
  7. spud1

    What are the requirements for interfacing a new gas supply with a commercial buildings fire alarm system ?

    Hi Im working in a staffed residential home (for severe learning difficulties/disabilities residents) they have a new onsite tanked gas supply being installed to supply two domestic sized gas boilers in seperate locations, which will replace the existing big oil fired boiler. I need to clarify...
  8. J

    BX in commercial buildings

    Hey so I am renting a large office space in NJ that used to be a school. The space is about 13k sq ft, with drop ceilings and there are fluorescent units throughout. I am slowly replacing all of the units with either pendant or led panels. What I’ve realized is that 98% of the wiring for these...
  9. Vortigern

    SWA supply cables between buildings will not disconnect in required time

    Doing calcs on swa supply to building as sub main from main three phase squard D board for single phase supply off of TN-S supply. I used cable mate from jarsoft and looked up various tables for disconnection times. In all case scenarios it tells me it will not disconnect within the required...
  10. l4urence

    Timber framed buildings... and the temple of doom

    All. Bear with me. I'm doing some research into electrical installation into timber framed buildings. This is not about a new build in first fix but much later modification. These constructions provide a thin service void which may or not be fit for purpose but I'm specifically interested in any...
  11. JK-Electrical

    BEAMA Calls For EICRs To Be Done In UK Residential Buildings Every 5 Years

    An interesting report. I'm in favour. My own opinion is that ten years between inspection and testing of domestic installations is too long, and that this period should be reduced to five years. I particularly like the proposal that an EICR be compulsory whenever there is a change of occupancy...
  12. cliffed

    Garage & other external buildings

    Finished a Eicr,just your thoughts on this,the remote garage is supplied from the ring main of the house,other building are radials of this. The supply enters from underground,& are pvc t&e,goes straight into a 2g power point,then to other points. There is no main bonding required,thinking this...
  13. D

    EICR's on buildings with multiple consumer units

    I have just been asked to do an EICR on a fairly large commercial building, up until now my experience of EICR's has been on domestic buildings so need a bit of advice on how to do the certificate please!! The main distribution board is a 3 phase board which then feeds 8 consumer units...
  14. Thebonse

    Supply to Portable buildings and portacabin/container

    Hi Fellas Sure i had another login but seems my account has been recycled......anyway. Im running a supply to multiple portacabins and shipping containers. The Supply is a TNS and is approximately 95m away. I have decided on a 63A 3phase circuit and calculated the cable size @ that length to...
  15. B

    TNCS export to out buildings

    I have a house to test soon that has several sub-mains to out buildings, some t&e and some 2 core swa, and one to a swimming pool. The supply is TNCS and I know it should not be exported anywhere but what code should each one get on the EICR?
  16. loz

    Floods on insulated steel buildings

    got a few 100w floods to mount on a newbuild. The walls are clad with insulated cladding, outer tin strip, insulated ion, thin tin strip. I can't get a fixing into the top purling, due to guttering. The client wants the floods mounted between en the top 2 purlins. I was thinking 2 bits of units...
  17. Michaelwgroves

    Multiple Occupancy Buildings

    Hi, UKPN are installing a new 200A 3PN supply. Their incoming cable is 95mm. As per the Multiple Occupancy Building recommendation G87 they will only supply the cut out. I now need to supply an isolator and Ryefield (or equivalent). Looking at table 4D1A 70mm cable will cover me for free air...
  18. K

    Running an outbuilding

    Hi, this is my first post so sorry if I miss some of the etiquette that usually accompanies these questions. I'm also slightly embarrassed to be asking it, as I'm sure I already know the answer. I have a contract for a company that install timber framed out buildings in peoples gardens, (30...
  19. F

    Display energy certificate open source software

    Dear all, I am a student and as part of my thesis there is a high need to perform a DECs calculation on a set of buildings. Of course the overall process is not related to a commercial process and therefore this is not related to the standardized method. So my question is if there are open...
  20. R

    Switching for Biomass

    Hi I am currently working on a Biomass installation on a farm which will be servicing two houses and a fan blower. I need to be able to run the main pump in the boiler room when demand is called for from any of these 3 systems. 1 house is over 150m away with the other 90m in the opposite...

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