bs 1361 fuse

[i=p/u]

hi ho, i just replaced replaced 8 gu10 50W bulbs in room as were blown. there is 18 on the one circuit plus 3 mini strip lights under benches very likely 18W each, they were all working when i left and when she left room she switched all 3 switches on 1 go and she said the fuse had blown, would you say by her switchen all on one go would of blown the 5A 1361 fuse ?? i personaly think to many but when you add it up its under 5 A

18 x 50W = 900W / 230V = 3.9A
3 x 18W = 54W / 230V = 0.23A so roughly 4A all in, which is under 5A

any input guys before you all go your local niteclub and dance like your up a ladder and fallling

 

[i=p/u]

isit genral pupose fuse tables as there is no 1361 fuses

 

[malcolmsanford]

That is because the new amendment as deleted the reference to the BS 1361 fuse i-p/u and now refer to the BS 88 series

I remember you lost your BRB book if you have the OSG it will be on page 102 table i for 0.4 secs

they are

Zs 5amp 8.4 ohms

Zs 15amps 2.6 ohms

Zs 20amps 1.4 ohms

Zs 30amps 0.81/0.93 depending on you CPC size

 

[i=p/u]

so am ok in going with the calculation of zs and if is lower than 2.6 ohms i can change to 15A 1361 fuse carrier. or just convince them to change to differnt energy lamps

 

[GLENNSPARK]

Do a Zs mate and Remember to "rule of thumb" the TABULATED values of Zs in BS7671.....then see if it complies.........

 

[i=p/u]

lenny if you out there, have you ever seen of a fuse that acts like a type c mcb its for a 1361 5A circuit thats tripping with the inrush of the halogens??? just asking as i seen you have a fuse shop .

 

[GLENNSPARK]

Maybe you can get a "slow acting" type.......

 

[GLENNSPARK]

You may be able to get a fuse with the charactaristics you need but it may be a BS88.........

 

[i=p/u]

well was just about to say that glensarks, when i was looking the other day at sockets when tripped all fuses were bs88 for sockets which were all in one board and then all the lighting is in one board. now all lighting circuits are 5A do i need to change the fuse carrier to 15A and are these easy to get. or could i just get bs88 hbc 5A fuse

 

[GLENNSPARK]

Go for the cheapest (and easiest) option first mate whilst still remaining compliant and go for the fuse first..........

 

[GLENNSPARK]

Dont forget, BS88s are very common in industrial applications and most (not all) but most industrial loads are inductives so my thinking is you will probably be able to get a BS88 thats suitable......

 

[i=p/u]

aye i want the easiest option as my practical skills on boards are dunce.lol i know having a fair idea is broc.

i can see delay hbc fuses but these are only protected upto 1.5kA,

 

[i=p/u]

anyone else got any more input as i have to go to this job in morning. just a reminder bs1361 fuse blowing when 18 halogen lamps are turned on. how would you tackle it???

too now i am going to cef in morning to see if i can get 5A hbc fuse and hope delays the start up current needed from blowing fuse and see if that sorts it.

 

[i=p/u]

just wondering would a 5A bs1361 fuse have different charcteristics to 5A bs1362 fuse???? could this be anything? thanks for your input on this post guys

think they are replacing blowing fuses with the plug type 1362 instead of 1361

 

[SW1970]

Yep, check this out, time/current characteristics nicely all in one place: .: AboutElectricity.co.uk - wiring diagrams,electrical photos,movies. - Articles: Time and current characteristic for fuses

 

[i=p/u]

cheers from the south sw1970, im some problem solver hah, \nyone else wanna add before i leave in 10 mins