Is it BS88-2?

[DomB]

Hi all,

Ref the pic attached, is that a BS88-2 fuse with nominal rating of 100A? And any thoughts on what the "Max Demand" (in kVA / Amps) would be?

The writing on the fuse says just "100A 3/16" DIA" on one side and "Made in England BIGG" (those were the days!) on the other:



Thanks in advance for any help..

 

[malcolmsanford]

If the holder happens to fall out with vibration or a mini earth quake it might also be a 1361 type I maybe a II but if it's a BS 88 most likely be a BS 88-6 it's old enough to be

 

[DomB]

Thanks very much. It's in fairly solid - doesn't feel like it'd fall out from a mini earthquake (although I can't say the same for the garage it's in!). It's for a NAPIT EIC - I guess putting 88-6 is the go.

Cheers

 

[antimatter]

It is a BS1361 100a Cylindrical House Service Cut-Out Fuse

BS 88 fuses have lugs at each end to be bolted on to.

The Maximum demand is the information given to the DNO when the installation would have been first installed.

 

[ian.settle1]

BS1361 is now known as a BS88-3:2007

 

[malcolmsanford]

Thanks anti good call wasn't 100% sure if it was the 1361 which is why I didn't rule out the BS 88-6

Yes but you;ll have to forgive old habits Ian as they do die hard it is indeed a BS 88-3 now, though by the looks of that carrier it will have 1361 on it

 

[DomB]

Fair play to you chaps, thanks very much

 

[mechelec]

to be honest you dont know what is in there unless you look. It could be 100A but it may also be 80A or even 60A what is on the carrier is not always what has been fitted

 

[antimatter]

BS1361 is now known as a BS88-3:2007

BS HD 60269-2:2010, BS 88-2:2010
Low-voltage fuses. Supplementary requirements for fuses for use by authorized persons

replaces

BS 88-2:2007

BS HD 60269-2:2010, BS 88-2:2010 - Low-voltage fuses. Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application). Examples of standardized systems of fuses A to J

 

[telectrix]

so now we need a bigger box on the cert to fit all these new letters and numbers in?????

 

[antimatter]

It says on it BS1361 on the cutout, , on your pic it doesnt, but look at another cutout.

is not BS88 as these have lugs on them

http://www.rselectricalsupplies.co....-bao40-hrc-fuse-40-amp-bs88_1298_1_medium.jpg

 

[DomB]

errm, dare I ask what should be put in the "Max Demand" part of the EIC (also under "Supply Protective Device Characteristics")..?

 

[antimatter]

100amp

 

[ian.settle1]

It says on it BS1361 on the cutout, , on your pic it doesnt, but look at another cutout.

is not BS88 as these have lugs on them

http://www.rselectricalsupplies.co....-bao40-hrc-fuse-40-amp-bs88_1298_1_medium.jpg

Think you had better read note 2 on page 2 at bottom of the table


http://electrical.------.org/wiring-matters/35/fuses.cfm?type=pdf

 

[antimatter]

Think you had better read note 2 on page 2 at bottom of the table


http://electrical.------.org/wiring-matters/35/fuses.cfm?type=pdf

from your link

BS 88-2.2:1988 Industrial fuse systems
BS 88-6:1988 Fuses for domestic applications
BS 88-5: 1988 Fuse-links for use in a.c. electricity
supply networks
BS 1361:1971 Cartridge fuses for a.c. circuits in
domestic premises

 

[telectrix]

errm, dare I ask what should be put in the "Max Demand" part of the EIC (also under "Supply Protective Device Characteristics")..?

rule of thumb, add up your breakers and divide by 2.

 

[telectrix]

from your link

BS 88-2.2:1988 Industrial fuse systems
BS 88-6:1988 Fuses for domestic applications
BS 88-5: 1988 Fuse-links for use in a.c. electricity
supply networks
BS 1361:1971 Cartridge fuses for a.c. circuits in
domestic premises

so, having read all that, it appears that they are all now BS88-3 (domestic supply fuse)

 

[mechelec]

errm, dare I ask what should be put in the "Max Demand" part of the EIC (also under "Supply Protective Device Characteristics")..?

20Kw is what i usually put when i require a 100A supply

 

[antimatter]

so, having read all that, it appears that they are all now BS88-3 (domestic supply fuse)

Where does it say that?

 

[telectrix]

Where does it say that?

i meant that, according to ian's link, BS1361 incorporated into BS88-3 (domestic supply fuses) but then it says BS and BSEN numbers withdrawn 2010. confusion or what. is it just the numbers they have changed , or the actual fuse characteristics?

 

[Dave_]

I usually leave the ´max demand´box blank as its very unlikely you´ll be able to come up with an accurate number