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tahoma

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  1. S

    Current carrying capacity and volt drop calc

    Hey all. Hope that this post is relevant to this section. Got a call this morning from my colleague who is on a large industrial job at the mo. He has asked me to calculate and come up with a suitable cable size that is forming part of a distribution circuit. I also need a suitable fuse size...
  2. S

    First ever commercial periodic - help!

    Hey all. Not been on here for a while and I have been doing a bit of browsing in this section to see if anyone is in a similar situation but not really. Anyways, so I’m going to be performing my first full periodic inspection report and of course testing at the weekend and I could do with...
  3. T

    2 Radials into 1 fuse

    Hello. I've been a member for some time now but in a voyeur kind of fashion and read alot of useful topics, anyway heres my first post. I'm changing a CU and the upstairs and downstairs sockets seem to be 2 radials terminated into the same 30a re-wireable fuse with 2.5mm cable. Should I...
  4. L

    Dissertation help! Part p review!

    Dear Sir/Madam Re: Dissertation – BSc Building Surveying I am currently undertaking a Bachelor of Science Degree in Building Surveying at Kingston University. In fulfilment of my dissertation I am required to research a topic area and produce a dissertation. The topic I have chosen is ` A review...
  5. H

    OLCI Domestic Installers Course

    Hi I’m a bit of a noob to this so I apologise in advance. I was just wondering if anyone had any experience of this OLCI course and if it was worth doing. I want to add some strings to my bow, and being located in Devon and working full time, this is one of the options I found. From info...
  6. A

    Work Experience Needed

    Hi all
  7. P

    Faultfinding Tips

    Anyone got any tips for faultfinding in electrical control systems?
  8. G

    Power=Voltage x Ampage that doesnt add up!

    I’ve just started the C&G2330 course at college part time as I want a career instead of been stuck in dead end jobs like the one I’m in now, having just started learning about the industry I’m very inquisitive about everything and was wondering if some could explain to me why these figure on the...
  9. P

    On/Off Control Circuit Question

    I’ve got a few queries about the operation of the 3-step control circuit. Have an exam on it this week and would like to clarify a few points as we’ll be asked a few questions on it. I’ll give an explanation of what the circuit demonstrates first. We want to maintain a constant pressure in a...
  10. S

    Alarm Auto dialer

    Hi can anyone recommend an alarm system with a GSM Auto Dialer as the unit where i will be fittinig it is in the middle of no where and has no phone line. many thanks
  11. carl9254

    Socket Holes

    Is there any special tool out there to get the socket hole in a wall or is it just a case of drill, hammer and chisel??
  12. T

    What PIR code for old stranded cable?

    Just wondering what PIR Code you would give old stranded cable? And for what reason? Whts is the best way to tell the customer this is no longer good enough for service? Or is it if the IR test comes out acceptable?
  13. C

    Cable sizes & fuse ratings . . . .

    Hi. Hoping that many of you experienced girls and guys out there will be able to help me out. A disagreement regarding cable sizes and fuse ratings. For example : I believe a 2.5mm2 radial ( assuming it is more than 5 metres in length ) should be rated at 16A unless there is convincing...
  14. T

    Full Domestic Test.. LOTS Of Questions

    Sorry all, This is going to be a long one... Maximum Demand... what’s my problem, im struggling to work this out, its taking me ages to figure this out and when i end up with a figure it looks ridiculously low.. Could someone give an example of how they have worked there maximum demand...
  15. T

    Any Reviews On The Metrel MI3101 ??

    Does anyone have this tester or a work colleague who has one? I'm very tempted to buy this but want user reviews if possible as being used in the real world day to day. Click the link to read an article on it in "Proffesional Electricain"...
  16. L

    Generators....

    Need a bit of help guys! Does anybody have any idea what sort of equipment is required to protect and monitor a generator against; Loss of excitation Overvoltage Unbalanced current operation Any help would be greatly appreciated! Many thanks
  17. B

    Tripping next doors RCD

    Hi to all The other day I found the fault on a ring main this was repaired and when I was testing the circuit (RCD Test) the neighbour came over and said that his RCD kept tripping I was confused When I tripped the RCD in the house with the test it tripped next door at the same time to me that...
  18. S

    Finding information about heating systems

    Hi I am brand new to this forum I’m student of electronics systems and my trade is heating systems. I want complete notes type information online. If you have any information in this subject so please share with me. Thanks
  19. T

    CustomerStreet Good or Bad

    Hi guys i have my own electrical company. At the moment we are a bit quiet so i thought i would look at maybe spending a small amount of money on advertising. I find it quite convenient that i have been contacted by customer street saying they have lots of work in my area blah blah blah (sales...
  20. R

    Competent Person Scheme

    Mmmm.... so to be able to work on domestic properties and self-certify, you need to be approved by NIC or another professional body. Otherwise you have to get your work independently verified by another spark following Building Approval notification. (Every time you do a job) Question is.....how...

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