fuse question

[Ryan Kavanagh]

hi guys,

another question i need some help with.

If the supply cut out fuse is a 100 A BS 88-3 device. why is it permissible for the total load to be greater than the main fuse rating?

thanks

 

[telectrix]

because the total load possible is never ahieived as not everything will be on at the same time.

 

[IQ Electrical]

because the total load possible is never ahieived as not everything will be on at the same time.

Which leads you on nicely to 'Diversity' 311.1