burning the fuse

[jacekS]

Hi,
Can someone help me?
I have a set of low voltage under cabinet lights with electronic transformer. I've replaced 7A 125 V fuse three times in the transformer. I'm using same as original fuse. Why do I keep burning the fuse?
Jack

[stephanvo]

how menny bulbs u have on the sercet, 110v * 7A = 770w peek pover
the lights u are using are more than likely the 12v 50w with the 1\3 power rule

u 5.1111 lights 6 max if the wire is 2,5mm on one high power transform
or 12 on 12 transforms if the wire is 2,5mm

most people thow that rule out the window

but wiring,(one or more transforms) changes evey thing

how menny light do u have ,whot wottage ,

how menny transforms