temperature

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  1. Startinez

    Central Heating system reaching temperature & shutting down

    Evening all, My sister is having a bit of trouble with her CHS at her new house at the moment. She informs me that when it gets to temperature it's knocking off the heating as well as the hot water. I've not worked on any heating system personally but I said I'd go over and check out the...
  2. sythai

    New to me : Air Source Heat Pump

    Hi Chaps Starting 3 new builds shortly. Had brief chat with plumber today over phone, mentioned that an air source heat pump will be part of the set up. Pressurised system with buffer tank, UFH ground floor & rads first floor. It's a first but never had anything to do with air source heat...
  3. Adie moore

    Bathroom Extractor Alternative

    I've been contacted by a customer who, after having a fire caused by a extractor fan, wants options on bathroom moisture removal. the subsequent refit included a extractor which is permanently switched off at the fan isolator. the room has no windows though. I know their are building regs...
  4. A

    Comparing heating usage Propane vs Elec

    Hi there, I do hope this is the right place to post this! I basically want to compare energy consumption in heating between two buildings. Building A has a purely electrical heating system and I can get how many kWh are consumed in one month. Building B has a gas boiler which uses 47kg...
  5. juice

    do you use the multipliers from tab 13 in OSG when calulating volt drop?

    I've recently done a C&G 2396 Electrical Design Course and unfortunately the tutor who taught the course did so for the first time and in my opinion didn't do a good job of teaching the material. I'm now doing my revision for an exam this Thursday and trying to make sure all the formula I use...
    • juice
    • Thread
    • cable conductor current table temperature volt drop volts
    • Replies: 9
    • Forum: UK Electrical Forum
  6. A

    BS 7671 Table 41.3, conductor temperature?

    Edited: sorry of course Ze should be added to the post below, Table 41.3 is for comparing Zs. Hi, it is my understanding that Table 41.3 of BS 7671 should be used for comparing the tabulated values with the resistances of: 1) the line conductor at 70 degC; 2) cpc at initial temperature, as...
  7. J

    Electrically control temperature

    Hello, I have just joined this forum. I am making a tank that has to keep a liquid solution at a specific temperature. I am trying to figure out a way to do this. My plan was to use the element of an immersion heater and remove the thermostat from it. I have been looking at temperature...
    • jimbo480
    • Thread
    • control electric electrical temperature
    • Replies: 7
    • Forum: UK Electrical Forum
  8. Midwest

    ambient operating temperature of consumer unit

    I will be installing an A3 consumer unit for a customer in a hallway, and they are thinking of relocating a radiator directly below it. Assuming the maximum temperature of the rad is never likely to exceed 30'c, an MK technical tell me the operating temperature of their mcb/rcd is -5 - 40'c, I...
  9. HappyHippyDad

    Regulation 434.5.2 exceeding limiting temperature of conductor.

    Evening.. I have a seperate oven and hob to fit. The oven is 2.6kW, the hob is 3kW. I have fitted 4mm flex to the oven and the hob comes prewired with 2.5mm. Zs on the cooker circuit is 0.2Ω making the PFC 1150A. I was planning on connecting both to a dual cooker outlet plate fed by a 32A...
  10. C

    High temperature 5Ft fittings

    Hello All, can anybody recommend any names that sell fluorescent or LED 5ft double fitings, with emergency battery feature that can withstand high environmental temperatures, we have a roof void that gets up to 50Degrees C and the Emergency Lighting Relay and or battery is breaking down in the...
  11. S

    Spot light install above a pot belly stove

    Has any one installed spots lights above a pot belly stove ,my fear is the heat will affect the led spots and even to a certain degree the cables may get affected above the ceiling Im installing a small mf ceiling to allow for spots I have attached a pic of setup minus mf celing which I will...
    • steviethespark
    • Thread
    • bell cables ceiling install light spot light spots temperature
    • Replies: 3
    • Forum: UK Electrical Forum
  12. L

    Adjusting French/Eurpean immersion heater thermostats - type THERM CE BIPOL 370MM

    Hi putting a little information back into the forum here, hope it helps someone. We have a cottage we rent out that has a 200 litre vertical pressurised tank with a 2.4Kw 3 phase ceramic wire wound element (this is in France btw). 20 years old and still amazing on the heating and heat...
    • LesF
    • Thread
    • heater immersion temperature termostat thermostat thermostats type water
    • Replies: 1
    • Forum: UK Electrical Forum
  13. W

    Wavin TP-83 room thermostat?

    I've just popped over from the other side, ( plumbers forum ), to ask if the above mentioned room stat is a type of intelligent stat, in other words can it be taught to know how long the system it's controlling takes to reach its preset temp, and to come on before it gets too low, ( hopefully...
    • Weirdfish
    • Thread
    • manual room takes temperature termostat thermostat
    • Replies: 16
    • Forum: Central Heating Systems
  14. uksparks

    Anyone know anything about heating controls?

    Hi, I have just swapped my ancient potterton room stat with a new Honeywell DT90E, just because there's now no argument about what temperature its at. I have a a non condensing boiler with indirect heating via a coil thing (i think) which is unvented. Its a Potterton Suprima 60L 78.15...
    • uksparks
    • Thread
    • anyone anything attach boiler controls heating heating controls knowledge temperature
    • Replies: 55
    • Forum: UK Electrical Forum
  15. C

    Lower energy generation from all black panels?

    Afternoon. I have potential customer questioning whether all black panels will perform as well as panels with a white backing on the basis that they will become hotter more quickly affecting energy generation on warm sunny days. I can understand the logic but have never seen hard evidence to...
  16. 1

    Is this genral knowledge

    Or is it in the book (regs) ? I was helping on a job today and paid particular attention to the fact that when the cutout fuse was 100a and the main switch was 100a we had to upgrade the size of the tails to 25mm When it was 60a we didn't! Now I'm not 100% sure if the main switch was 100a 80a...
    • 1stfix2ndfix
    • Thread
    • knowledge led rated rating switch tails temperature
    • Replies: 43
    • Forum: UK Electrical Forum
  17. The Solar King

    Thermodynamic Panels NAREC Tests

    There are so many threads on this, thought I would start a new one. First results of NAREC tests now posted here: Thermodynamic panel test - Narec Distributed Energy Early days, but interesting.
  18. codger

    Temperature rating of equipment.

    An armoured 90 degrees cable is to be installed between two pieces of equipment. The equipment at either end is rated at the standard 70degrees C. The cable was tested as a 70degrees cable but another organisation has said that the cable must be tested as a 90degree cable regardless of the...
  19. ELECNEWT

    Surface temperature of lamps and chassis on gu10 5w leds

    Hi, Does any one have any data or personal knowledge of the temperatures of lamps and chassis of GU10 5W LEDS ?
  20. M

    SolarImmersion + de-strat = do i need it?

    4kwpa system and a new solarimmersion...working surprisingly nicely even though it's December. family of 5 who bath and shower a lot. therefore might benefit from a full tank as it is always used and we work from home and shower in day after sport etc etc would I benefit from a de-strat pump...

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