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mechanical

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  1. D

    Does a CPC require mechanical Protection

    We have been asked to carry out some linking up eart bars on 5 blocks of flats, they want the CPC running in metal conduit, where I think that a CPC can be clipped direct, anyone know the answer and possible reg number.
  2. S

    BRE 495 Mechanical installation of roof-mounted photovoltaic systems - wanted

    Has anyone got a spare copy of BRE 495 Mechanical installation of roof-mounted photovoltaic systems please?
  3. L

    Addng cpc to two core lighting circuit

    Fellas is it permissible to run a single 2.5mm in a loft or do really need double insulated?, there has been an attempt to add an earth to the circuit before but they missed the switches out and some fittings are 32Ohm R1+R2, it's in a bungalow so should be easy
  4. B

    Mechanical Protection

    What do regulations state about cables such as T&E and Flex on cable tray etc?
  5. R

    What kind of engineer does this seem like?

    I would prefer to build mechanical systems as I can be more hands-on, maybe use power tools, etc. Despite this, I am more interested in what electrical products such as computers, radios do, MP3s; I do have an interest in planes, rockets, and vehicles as well, albeit not as much. I would...
  6. D

    Work experience in North Devon needed

    Before i start here i asked Dan for permission to run this `AD` and got the go ahead. A brief run down on what ive done is below followed by what im in need of. Wont do a full CV but will try to outline my experiences and quals. Mechanical engineering apprenticeship at 16 for four years, which...
  7. M

    Mechanical Science 2

    thanks for all your help on my last post the pennies are starting to drop and things are getting clearer but i still fall by the way side with calculations and onceagain i'm having trouble with this one any help would be much appreciated thanks A crane raises a 2.5 tonne load vertically in...
  8. M

    Mechanical Science

    just been given this query to do for my level 2330 any help would be much appreciated thanks An electric hoist on the side of a building 45m lifts a quantity of electrical equipment through a vertical distance in 3.5 minutes. The motor rating of the hoist is 189.19w. Calculate the MASS of the...
  9. W

    Aussie Mechanical Services Electrician fresh in the UK - wages

    Hi, I am a qualified Australian electrician, recently arrived in London, about to sit my 17th edition assessment, and continue the mad job hunt. I would just like to know what sort of money I can expect to be earning when I do score a job? Back in Australia, sparkies earn from 25 up to about...
  10. I

    Mechanical force - High Voltage Surge Arrester

    Does anyone know the formula for calculating the force generated during a discharge condition of high voltage surge arrester ? (force applied on the ground connection lead) Thanks!
  11. W

    Can FP 200 be burried in the wall without RCD???

    Hi. We are looking to quote to install domestic heat detectors interconnected to the existing smoke alarms for a social housing provider. Do you think that FP200 could be used to save us installing RCD protection to the circuit as the cable needs to be concealed. Our NIC inspector tells me that...
  12. S

    Question about non-automatic transfer switch

    hi, i want to design non-automatic transfer switch by 2 contactors and push buttons. my question is do i need mechanical between the 2 contactors? or it is enough to work with NO-NC for both contactors. please help me
  13. Doomed

    T&E in conduit

    When running surface mount T&E in offices and shops I have been in the habit of running it in conduit or mini trunking for the added protection. Working along side another spark who asked why I bothered, he just clips direct along walls etc. I realised that I could not remember why I started...
  14. richardg

    mechanical protection of garden lighting flex

    Evening all, i just would like some clarification on the best practice concerning mechanical protection of garden lighting flex. I have installed swa throughout the system buried 500mm terminating in ip56 box's to be buried underground. The system is connected to a garage ccu with RCD...
  15. P

    Panel isolators with mechanical interlocks

    Hello chaps, i'm hoping that someone can help me out with a question i have about panel isolators. Is it UK legislation that an electrical enclosure should have a mechanical interlock on a door mounted isolator (if fitted) to prevent the door being opened with the power still switch on? If...
  16. Dan

    ContractorForum: Hello from Spatial Mechanical: Hello all In the Air Conditioning and

    ContractorForum: Hello from Spatial Mechanical: Hello all In the Air Conditioning and Ventilation trade...did our first post thi.. http://------/72ABel More... Follow us on Twitter.
  17. B

    Mechanical protection through joists

    where the other measures of 7671 522.6.5 are not used and a cable passes through a joist less than 50mm from the top, the cable must have adequate mechanical protection against nails, etc. Please tell me, does this requirement only apply to the parts of the cable passing through the joist? or...
  18. A

    Mechanical Protecton Cut-out to Meter

    Just read the IEE Wiring Matters mag today, article about what you are/aren't responsible for in an installation where you do Minor Works Cert stuff. It states that you need to check that the DNO head/meter/isolator setup is in good gondition and safe before starting any work on that...
  19. B

    Mechanical & Electrical Opportunities - Flexible Throughout Europe

    Hello, I am currently building a key Data Centre Infrastructure division on behalf of one of my key clients. I am keen to speak to anyone from a Mechanical & Electrical engineering background. There are positions at all levels so if being part of a brand new division to utilise your...

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