length

  1. G

    how to cure a blowing fuse

    Some latvian contractors had complained about a welder blowing a fuse on an extension lead repeatedly,Finally they announced they didn't need the electrician calling out as they had resolved the issue,yes that is a piece of an M6 bolt!
  2. P

    am i doing the right course length time ???

    Hi there!! I'm new to this site and I am whishing to become an electrician I am currently studying at night class at a my local college L2 2330 2year and then L3 1year so all together 3 Years some people have said why not train with the olci and you will be trained in 18 months but some people...
  3. K

    Ohms Law & Cable length

    Hi guys,, Brand new here so easy going ok! Something is baffling me and i cannot for the light of me figure it out even after study of GN3. I'm 41 and been around a while so not wet behind the ear. If 55m of 2.5mm cable has a known resistance of 7.41m ohms per metre this equates to...
  4. M

    Voltage drop calculation

    Hello everyone just want a little help how you would calculate the volt drop if 230 single phase heater circuit line & neutral conductors combined resistance of 0.68 Temperature at 20 degrees and load current of 16A? show calculations got this in my 2395 today wanna make sure I used the...
  5. A

    two methods to verify a low ohm meter i think is not working properly?

    I am looking to answer a question on a course, and cant think of 2 methods to verify readings on a low ohm meter....please help?
  6. M

    Maximum cable length.........??

    Good afternoon all, firstly im pretty rubbish at cable calcs. My question is this, the load on the circuit is 6.6kw for a outdoor ev charger so the cable would be clipped direct. Using 4mm NYY cable is ok subject to the cable length, any ideas on the maximum cable length before having to use...
  7. N

    cable length

    Hi there, I've been asked by a farmer to replace the overhead cable going from the house to some of the sheds. The cable goes from the house to Shed A where it splits in a consumer unit and onto Sheds B and C. When calculating voltage drop to I enter the entire length (i.e. from house to Shed...
  8. F

    Radial length

    Ok just a quick one got brane freeze here a 20a radial can be no more than 50m2 so if this is a straight run what length is it basically how do you convert square metre into metres in a straight run thanks in advance
  9. A

    Meter Tail Length - Getting the Electrical/Mathematical Equations from the DNOs.

    Hi everyone, I'm new to this forum and this is my first post, so apologies if I get anything wrong. I do a lot of property redevelopments, and some landlords (myself included) prefer to put the elec and gas meters outside the property in meter boxes. This can cause issues, as often the only...
  10. Y

    Voltage drop question

    Hi everybody. I have a question (still learning, passed 17th edition and part P, but I'm not yet registered). If you use formula from On-Site Guide p.140 what the design current you put in the formula, to calculate max length of cable for 11.5V. If 32amp then the maximum length of ring final...
  11. J

    Cable sizing for 24V LED lighting

    I believe I have been wrongly advised by my supplier about sizing cable for a lighting installation and I was hoping that someone with more experience of DC cabling will be able to set me straight. We are looking to install some LED strips to a coffered ceiling above a swimming pool. I have...
  12. B

    Earth Electrode Testing

    I have been tasked with carrying out some earth electrode and LPS testing using the fall of potential method but to do this I need to know the length of the rod. How do I work this out if I don't know the length?
  13. F

    Calculating Voltage Drop on a Ring main

    Hi Guys, I'm fairly new to the industry and have sat and passed all the relevant exams to become a Domestic installer. I'm a little stuck with one of my pieces to be assessed by NICEIC. I'm doing a full rewire at my dads house and would like to check that I'm calculating the cable volt drop...
  14. G

    length of pvc conduit run

    Its been a while since I last worked with PVC conduit but I seem to remember you had to have an access box every so often. Can anyone remind me of the regs regarding this.
  15. R

    3 phase Conveyor drum motor?

    Hi guys, anyone know where I can source a new 3 phase conveyor drum with quick deliver? thanks
  16. J

    Parallel Feeds

    Doing an EICR on a building and a sub board has two 4mm twin and earths feeding it. Cables are connected into same breaker in main db but take different routes to get to sub board. Is there anything in the regs regarding as I cant find anything. Cheers for any information or advice.
  17. N

    Max length of run?

    Can anyone help with this..2500w of panels. 6mm cable. Max length of run?
  18. W

    Commercial roof safety

    Morning all, Would anybody mind sharing safety tips for working on single skin metal sheet barn roofs. I have 1 10Kw to do and i've just priced a 30Kw. Do you use safety nets, crawler boards or fall arrest harnesses? or a combination of all three. Does anybody have an idea of cost to safety...
  19. S

    Kopex / flexicon for this job.....your thoughts

    I've got to price for some alterations to a room in a commercial building that has been an electronics lab. It's new use has a simlilar vein but they want the room looking more "slick" , all cabling flushed in and dado trunking. Problem being the existing is in singles and plastic pipe surface...
  20. R

    radial circuit

    Hi all, gone to look at a job today and would like a bit of advice. The job is to get power out to 2 sheds from a garage CU. The CU in the garage has a 32mA RCD and 6amp and 16 amp Mcb. The power in the garage is run on a radial circuit, so I was wondering if I could carry on the radial circuit...

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock