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input

  1. J

    Domestic Input water temperature for electric shower

    I have a solar pv system that has an Iboost fitted to send excess generation to my hot water tank. Combined with my solid fuel back boilers we almost always have hot water. I also have a cold mains fed 11kW shower - not a power shower. I would like to feed the shower with luke warm water via a...
  2. J

    Strange design of Induction Hob power input, advice please

    Hi, hope everyone is enjoying Easter! I have boon looking for an induction hob recently and found one on ebay for £25 and close by so I bought it, yay!. It was purchased as defective, its a 5 sone hob and the two left zones did not power up. A bit of research before purchase shows there were...
  3. M

    Input from electricians needed

    hi all i am looking for help in regards to a research project, I need to do for a uni dissertation, it’s about quality and electrical safety, I would be greatful if you would take a few minutes of your time to complete it, no personal details are required,you may need to sign into google if your...
  4. C

    Solar inverter showing low dc input ( with pictures ) help please

    hi everyone, hopefully you can help. I have a 4kw solar panel system and just noticed a drop in how many kw it’s producing. I checked the inverter ( fronius primo ) and the lcd is showing low dc input on string 1. Any ideas of what the problem could be ? Even if I could narrow it down to what...
  5. D

    UPS - input rating vs output load

    with a single UPS rated at 8KVA, 230v, stating maximum input current of 44A, would the over current device, cable size etc be based on the 8KVA installed load (the UPS), or, the actual load of 8A, connected to the output of the UPS ? this is a fixed installation, supplying computer based loads...
  6. 8

    Minor works, fixed dwelling with commando input.

    Hi gents, I'm working on a container thats is ply lined and has lighting and power inside all run in plastic 20mm surface conduit. Protective device is a garage 2-way consumer unit with 30ma rcd main switch (already installed on arrival). The container is in middle of a field on a mod site -...
  7. J

    For Sale: Allen Bradley Compact Logix L32E PLC

    I am selling a complete Allen Bradley Compact Logix L32E plc, All the of parts are as followed: 1x 1769-L32E Logix 5332E Processor Unit 3x 1769-IQ32 32 pt. Input Module 1x 1769-PA2 Power Supply 2x 1769-OB32 32 PT. 20.4-26.4VDC Sourcing Output Module 2x 1769-IF8 8 Channel Analog Input Module 1x...
  8. uksparks

    Pyronix alarm triggers

    Hi, I have and regularly install Castle Enforcer alarms by Pyronix. i have a question and hoping someone may know. how can I trigger an input from a third party device, so for example how can I close a relay on another device or put a 12v feed in to an input on my alarm? i want to be able to...
  9. Clark3169

    Max ZS allowed on NICEIC cert seems wrong?

    Hi guys. I've recently moved from NAPIT to NICEIC I've just issued a cert. Now the circuit details are as follows. Lighting, 6amp RCBO Ze - 0.18 R1&R2 - 0.64 ZS - 0.82 Now by my understanding the max allowed ZS is 6.14 for the type of RCBO so I'm well within the allowed but on the generated...
  10. truckster

    Led drivers brain fart

    Am I having a brain fart?? I fitted 4no. two gang sockets fed from a 5A fuse in a shop for display lighting. The shop fitters arrived some time later and fitted a bunch of LED lights. Each driver states input as 1.2 amps and there are sixteen of them?? However each driver is only supplying...
  11. Resu

    Duplicate Easycert EICRs

    Hi all, was wondering if anyone could tell me if it's possible to duplicate an entire EICR on the app. We have a scheme of 20 houses to do all exactly the same electrically and this would save a bit of time (worth mentioning we obviously won't be using the same values for each property, it's...
  12. R

    generation meter installation

    hi, at the risk of sounding incredibly green i have my first pv install tomorrow and noticed when loading the van that the generation meter has one input a line nuetral earth connection but only one input. i have two strings to connect. will i be okay connecting both unequal strings to one input...
  13. P

    are both my trackers working?

    I have split roofs and an Sma 3600 TL inverter and have only just looked at it properly. When the on screen display switches between input A & B, input B registers 0v and 0A although the power figure changes. (input A registers about 360v) It is cloudy at the moment and no sun in the sky. Is...
  14. W

    String fuses?

    Hi I'm getting confused about the use of string fuses. In the dti guide 4 or more strings in parallel require string fuses to be used in the design of a system. In certain sma inverters, for example the tri power tl8000 they already have string fuses built in. There are 4 d/c inputs on...
  15. SolarCity

    10000TL inverter - 3 phase output and number of strings

    Does anyone have any experience of the SMA 10000TL inverter? I was wondering whether the number of strings had an effect on the 3 phase output of the inverter. For example, does the array need to be arranged as 3 seperate strings?
  16. D

    National Work/Advertising

    Hi Chaps, I m just about to climb on board a national LTD company's band wagon and after some advice, any ways, what i get / they get I am getting LOCAL advertising 100,000 leaflet drops a month ,National Advertising in a Daily Newspaper alongside the Main Companys advert! 3 days a...
  17. M

    247.9 volt in my home, 6 laptop chargers later?

    Hi im new to this forum, thanks for accepting me. can anybody help please? i have gone through 6 laptop chargers in the last 9 months, i just mesured the voltage and peak is 247.9. will a surge protector keep it at 240v ???? or is there something i can buy to keep it at 240? because the...
  18. H

    Sub Mains

    Does a 16mm TWE sub main feeding a consumer unit with 2 x RCD's and a main sw, wired under floor boards need rcd protection ??
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