does 60Amp main cut out need increasing??

[martinsayer81]

hi guys, new to this, this is my first post.

a 3 bed, 2 bathroom house with a T-N-S 60Amp main cutout fuse, has a 6 way c/u with re-wireable fuses. (no spare ways)
3x 5A lighting circuits
2x 30A ring mains
1x 15A immersion heater
(oven and hob is gas)

the house is being extended and refurbished, and the architect has requested a new lighting circuit and a new kitchen ring main.

after looking at diversity, am i right in thinking that the demand will be too high for the 60Amp main cut out fuse??

will it need replacing with a 100Amp fuse with new 25mm meter tails,

many thanks for any replies/answers.

i am worried about telling the customer they need to replace the supply(costing them money) if its not necessary

 

[Octopus]

the architect has included about 30 spotlights! i will have to talk to them about maybe using the cfl equivalent.

What about LED's?

 

[JUD]

the architect has included about 30 spotlights! i will have to talk to them about maybe using the cfl equivalent.

Or LEDs

**EDIT** Murdoch beat me

 

[martinsayer81]

can led lights be on dimmer switches?

 

[telectrix]

only if they're dimmable LEDs. about £12 -£15 a lamp though for decent LEDs.

 

[martinsayer81]

i'll look into it, its the customers choice at the end of the day, but i would feel better using low energy fittings,

 

[JUD]

can led lights be on dimmer switches?

only if they're dimmable LEDs. about £12 -£15 a lamp though for decent LEDs.

GU10 LED Dimmable - Dimmable LED Bulbs

 

[telectrix]

well don't waste you breath on those atrocious cfl rubbish. by the time you've got some light escaping from them, you've left the room.

 

[martinsayer81]

well don't waste you breath on those atrocious cfl rubbish. by the time you've got some light escaping from them, you've left the room.

are they still that bad? you'd think they would have improved them by now!

 

[JUD]

Why all the mention of installing a new DB, the one in place may already be suitable.

The one in place is 3036 fuses and his new circuits will require RCD protection so at the least he will need an extra CU for these.

 

[nickblake]

Still like halers lol my house runs on a 50 amp MCB gas hob but 10.8 kw shower not mananged to trip it yet

 

[Moses]

yeah im changing the cu to a new split load board, adding new light circuit and ring for kitchen, and im going to put smoke alarms on one of the lighting circuits, with smokes interlinked,

just hope the existing installation doesnt have an underlying fault that will trip the rcd!!!

Lookout for "Borrowed Neutral" on the existing lighting circuits.

 

[Moses]

the architect has included about 30 spotlights! i will have to talk to them about maybe using the cfl equivalent.

Or Leds













sorry

someone already mentioned it.

 

[SPARTYKUS]

Martinsayer81

look at the current / time graph for that 60A fuse.

You'll soon realise something major will be required to happen to make it blow.

It'll run at 100A for a long time. A long time.

PS only main fuse I have ever heard of that had blown in a house (that I can think of) was because .... well a sparky did something very very silly!

 

[telectrix]

well, some years agoe. around 1988, i blew the DNO fuse after moving into my dad's house to look after him. then again it was a 30A rewireable, been there since 1926.