100amp

100amp

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  1. David-S

    Upgrading my service from 60Amp to 100Amp

    My house was built in the 1930s, The fuse in my service cut out is 60Amp and the wire coming from the street has a 16mm2 copper core(easy to see against the 25mm2 copper tails into the smart meter) I am ready to install a new 10.8kW Shower, Is a simple fuse change sufficient? Ive been told by...
  2. T

    TP 100amp submain on BS88-2 fuses, but the Zs is above the Max allowed...

    I am helping a local football club who are having some issues with Zs being too high on the submain. They have the supply Henley blocked into a 100amp TP switch fuse (BS88-2) which then feeds a 35mm 4 core SWA 95m to an isolator in another building which is being built. The Ze at the incomer...
  3. J

    Running 100Amp service to an exterior garage

    I need to run electrical conduit through an existing foundation. here is the catch. The exterior of the foundation is clad in fieldstone and has a bluestone cap. Cutting into the stone or notching the cap is not an option (Wife!!!!). The simplest solution would be to drill the slab in front...
  4. V

    Can i feed an 100 amp sub panel from a 100amp main panel

    I currently have a 100 amp service that feeds a 100 amp main panel. That then feeds a 75 amp sub panel in the old shop. Then that 75 amp panel feeds the new shop with a 40 amp panel. What I would like to do is get a 100 amp panel in the new shop and get rid of the 75 amp panel in the old shop...
  5. L

    Which DP 100amp isolator is good

    Anything better than these ?? https://www.screwfix.com/p/wylex-100a-dp-isolator-with-enclosure/321FR?tc=TT3&ds_kid=92700055281954493&ds_rl=1249401&gclid=Cj0KCQjw37iTBhCWARIsACBt1IzKLrO9guBmyJpLxiNL7yl8XeNfdpz6YkfyWUpRQdvOtIKOG_ybKrMaApKgEALw_wcB&gclsrc=aw.ds
  6. B

    Shed wiring ?

    100 amp box in house and have only 1 open slot for breaker ! I want to wire my new shed with 2-3 led lights and several outlets . Shed is 50’ from house box . Should I install a 30amp + breaker in the open spot and run #10 wire to a small sub panel in the shed or what might work better ? 220 not...
  7. mrloy99

    Query; I have a panel board(mccbs) containing 100amp mccbs...

    Hello engineers. I have a query. I have a panel board(mccbs) containing 100amp mccbs supplying various "life safety DBs" lifts, water mist pumps etc.The panel board has an MCCB of 250 AMP as the main switch. It is supplied from an ATS in 120mm sq.4 core with 70mm earth.A run of 20m.The ATS is...
  8. D

    100AMP Main Panel Wiring - Advice wanted!

    Hello! Photo of panel to be attached and linked (below). I have taken on the task to wire a new 100AMP main electrical panel. I live in Canada. Have the permits from ESA (electrical regulatory). Want to make sure it's top shape. Change out is from an old 100AMP Fuse box. I have the two...
  9. B

    Is this a 100amp or 200 amp service?

    I am not an Electrican but I am buying a new home here in Michigan, and the outside pole to the house I’m wondering if is a 100 or 200 amp service coming from outside, I talked to to electricians in person without them coming out to the house just from the pictures to see if they know the...
  10. B

    100amp Isolator switch required

    Hello everyone. I'm hoping you can advise. I am in need of a 100amp fused isolator switch with a tiny footprint. Any recommendations please? Thanks
  11. haptism

    16mm T&E tails on 100amp fuse

    Did a job earlier in a new build, part of a 5 year old new build estate in the darkest depths of kent. Anyhow opened up CU and saw 16mm tails so assumed would be on 80a fuse as there not huge demand. Then outside to check service head and main fuse is labelled 100a ?, the tails are 16mm t&e. I...
  12. R

    3Ø 100amp Question

    Hi I am planning to convert an old office building with 3Ø 100amp supply into 14 self contained student studios (approximately 20 sqm) Each studio will only have 2 electric heaters, 2 lights, 10 double sockets. The hot water will be gas heated. I'm hoping someone will be able to tell me if...
  13. andysparkfree

    100ma 100amp 3phase main switch on TT system and rcd protection on the rest of the circuits question

    Hi all , my question for your brilliant minds is (ill first set the scene) 35mm 4 core swa coming from an external supply, 16mm earth ran out to an earth rod(ze at the distribution board main switch 0.35ohms) now this is quite a large installation with a 3phase distribution board in the...
  14. andysparkfree

    PME head , builder forgot earth cable , 100amp 3phase supply , 10 bedroom house , 10 bedroom house

    Hi all , im new here but have always looked for answers over the months description of my question there is an external 100 amp 3 phase metered head that this new 10 bed house is to be fed from , the builders installed a 35mm 4core swa as i directed however they forgot about a 16mm earth now...
  15. Input

    100amp Switch Fuse required or not required?

    Hi All When upgrading a fuse board privately or commercially, if the board is right next to the meter (or within a distance less than 3m's) is a 100amp switch fuse required? I've seen them installed when CU's are installed more than 3m's away. But generally most electricians I've seen just...
  16. G

    Moving 100amp switch box

    Hi all new to this forum, and require some assistance to a job the is currently being undertaken. A client is currently having a new kitchen installed and, behind a unit in the old kitchen there is a 100amp switch box, wich is fed from the cut out on the outside of the property. And swa out to...
  17. R

    DNO upgrade 60 to 100amp

    Hi, Who is responsible for the cost of upgrading the supply to a property? The current fuse is 60amp, the property will need the 100amp upgrade. Sent from my SM-N910G using Tapatalk
  18. haptism

    DNO fuse 80amp, board dp 100amp

    Hi hope someone can help. If a small house's DNO's fuse is rated at 80amps, is it considered bad practice to fit a db with a 100amp dp switch ? As most db's have a 100amp switch I assume this is common practice, also I expect an 80 amp DNO fuse can handle alot more before it blows.
  19. K

    I need a 3phase 100amp isolator switch advice

    Hi can anyone help me with the following I have a 3phase supply on a single phase meter. EDF are coming next week to change the single phase meter and putting in a 3phase meter.My electrician is putting in a domestic split wat fuse board and has asked me to get a 3phase 100amp isolator switch...
  20. G

    100amp fuse 16mm tails

    can anyone tell me why some houses are fitted with 100amp fuses and only 16mm tails ? was this how they did it back in the day ?

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