DNO fuse 80amp, board dp 100amp

[haptism]

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.

 

[haptism]

Hi all, thanks for the responses, Ive been to Church just now so a bit of delay. I should mention that im no longer a working electrician (I used to be), I now work for Thames Water dealing with water. I thought I would post up this query as on a couple of occasions ive been into properties and noticed the DNO fuse has a lower rating than the db's mainswitch (100a). I was unaware :sweatdrop: that a db's dp main switch would not "trip" under O/L or S/C conditions so you have sorted that for me ! Give yourselves a pat on the back and much thanks for your info.

No dancing at church tonight but there was a good sermon about "salt of the earth"

 

[Simonslimline]

Hi all, thanks for the responses, Ive been to Church just now so a bit of delay. I should mention that im no longer a working electrician (I used to be), I now work for Thames Water dealing with water. I thought I would post up this query as on a couple of occasions ive been into properties and noticed the DNO fuse has a lower rating than the db's mainswitch (100a). I was unaware :sweatdrop: that a db's dp main switch would not "trip" under O/L or S/C conditions so you have sorted that for me ! Give yourselves a pat on the back and much thanks for your info.

No dancing at church tonight but there was a good sermon about "salt of the earth"

Fair play for being honest.

I will be honest as well,and say i am still shocked.

 

[Darkwood]

On that note, I think the thread be best closed as the OP has explained his position and tbh I don't see the thread can move any further forward in a constructive manner.