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minimum

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  1. S

    Minimum call-out fee gripe

    Hi guys, had quite a few people ringing me up recently and asking what my call-out fee is; to which I reply £70 (which covers one hour) plus materials. I then get the response "oh that sounds expensive" - is it? I think it's reasonable for 2018 in the South East of England. What are you guys...
  2. robd

    Minimum bonding size TNC-S

    Afternoon all, Just trying to clear something up, going through regs book at present. Basically have got a TNC-S/PME installation, 16mm tails, 60/80a main fuse (think it is 60A), 6mm bonding to water and 6mm coming from service head to block then into CU as main earth. Am I right that being...
  3. littlespark

    Scotland's minimum pricing for alcohol

    After the nationwide sugar tax attacks my taste for full fat coke in a red can, the SNP have gone one better and finally brought in their diabolical minimum price for alcohol. I don't know the details, because i'm not really interested, but I think its 50p per unit of alcohol. Reading off some...
  4. D

    Minimum requirements to produce and sell bespoke ceiling lights?

    Hi all, I would like to start making my own lamps and ceiling lights to sell to the public, but currently I have no formal electrical qualifications. What requirements would I have to meet as far as training and legislation to be able to safely and legally produce and sell within Britain or...
  5. W

    Minimum number of sockets?

    My existing kitchen is being rewired? Would it need to comply with the number of sockets in the OSG in table H7? My kitchen is small. Having 6 double sockets (plus cooker switches etc.) looks stupid and I would struggle to use half of them given. My interpretation is that these are just...
  6. MDJ

    So I tried to start a new thead but I was told a minimum od 25 characters had to be typed

    Ummmmmm Why?
  7. S

    Solis 0.7kW mini - minimum wattage input?

    We have a few small PV installs to do. The developer needs 0.5kW/ two panels on each roof. To keep it simple we are looking at putting in 0.7kW Solis mini inverters. They have a low start up voltage of 60v. 0.5kW is too low for this inverter according to Segens designer but 2x 275w and 2x300w...
  8. S

    Minimum IP rating for wall mounted external industrial socket?

    What is the Minimum IP rating for wall mounted external industrial socket? It's to be outside & only used for plugging in a generator that will give house temporary power through a changeover switch in the case of power cuts.
  9. Dozer 73

    Minimum wage and freddo's , food for thought

    Food for thought The Freddo theory In 1999 minimum wage was £3.60/hour and a freddo was 5p This means you could buy 72 freddos with an hours wage Now minimum wage is £7.50/hour yet freddo's are 25p , meaning you can only buy 30 freddo's with an hours wage For the continuum of freddo...
  10. A

    MR16 replacement not working

    Hello, I am simply trying to replace an MR16 LED spotlight that has stopped working. However when I put the bulb in and turn on the light it simply flashes and turns off and won't turn on. Is anybody able to help me with why this might be happening? The old bulb has the following: Sainsburys...
  11. M

    LED lights from dimmer flickering. Load is below dimmers minimum rating.

    Hello. So I've learned a lot about dimmers on this last job. The customer wanted everything downstairs on dimmers and boy has it been a learning curve. I've split a lighting circuit and the customer has asked for 2 x st64 led bulbs on pendants to be put on a dimmer. The problem is they're...
  12. O

    Determining Minimum Trunking Size

    Hi there! I have successfully completed all parts of my coursework for level 2 and 3 2365, bar one notorious question: A trunking run within the electrical switch-room area is to contain the following single-core thermosetting stranded cables 35 x 1.5mm2 25 x 2.5mm2 12 x 4.0mm2 10 x 10.0mm2...
  13. M

    Adiabatic equation on distribution circuits

    Now I know this has probably been covered a few times but I'm struggling to come to terms with my own calculations. I would appreciate it if someone could tell me if my calculations are correct. So basically I've done a periodic and some of the CPC sizes for sub mains are less than half the...
  14. B

    Cable calculations

    Can anyone help me out how to find minimum kva? The question is, determine the minimum KVA, you have 0.5kw, 12v motor and a power factor of 0.8 cheers
  15. tony mc

    Which Reg in the Yellow book

    Reg 433.1.204 Is in relation to Accessories to BS 1363 supplied through a Ring Final circuit etc and Appendix 15 gives Ring and Radial circuit arrangements. The minimum CSA is 2.5 mm (1.5 MI ) unless a FCU is used and it can be reduced! Just been asked to find the Reg which states 1.5mm CSA...
  16. R

    Minimum Height Of Conduit

    I have just finished a job for a customer part of which entailed running 20mm conduit horizontally at 1.75 metres above ground along a vertical railway sleeper type wall at the end of a parking area for their two cars. I have just had an email from the customer saying that they want the conduit...
  17. C

    Compex Exia and ip washers

    Hi there i am looking for a question answered regarding Ip washers on Exia equipment, the equipment is rated at Exia iic T6 ip rating of Ip68 intrinsically safe in zone 2 with an Exde Hawke cable gland on the cable Ip rated at Ip66/67, does this still require an Ip washer as the minimum Ip...
  18. L

    Minimum separation distance between LV underground cable and Water service

    Hi, I have noticed the following item in a new construction site. Could anyone can give me further suggestion, please. 1. What is the minimum separation distance between LV underground cable and water pipes (Cold water)? This is for new underground cable lying. Water pipe is to run parallel...
  19. Z

    Question Regarding Adding Wiring To Lighting Circuit / Going Down A Cable Size

    I've got a lighting circuit wired in 1.5mm T&E on a 6 amp MCB. There are some lights that I'd like to add on to this circuit, controlled by an existing switch. Due to the position of these lights, the most aesthetically pleasing way to install these lights would be to run cable to the new lights...
  20. H

    Minimum Power - Transformers

    I'm trying to fathom the science behind why certain transformers need a certain power in order to work. What I've got is this, and wondering if someone can confirm my thinking: 12v output, 30W load - resistance of 4.8ohms 12v output, 2.5W load - resistance of 57.1ohms Is it because as the...

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