Cable Forum - View Single Post - Working out the safe load for an extension strip

raging bull · 13-01-2014, 18:40

A typical extension lead there is a 13 amp fuse, this is sized to suit the cable used.
(So wire is 2.5mm cable which can carry 3Kw load/12amps)
The fuse is there to protect the cable used in the lead, so be aware that it's not suitable to use a 13amp fuse in a cable designed to carry only 10amps/2.5Kw maximum.
Likewise fuses within each device plugged into the extension are protecting each device.
The rating of a fuse marked is the maximum current that the fuse will carry, tables are used to define at what any particular fuse will blow when loaded up.
[Plug fuses are manufactured to BS1362]

13-01-2014, 18:40	#7
raging bull cf.geek Join Date: Mar 2004 Services: Tivo V6 - L TV/XL Phone /250Mb BB Posts: 904	Re: Working out the safe load for an extension strip A typical extension lead there is a 13 amp fuse, this is sized to suit the cable used. (So wire is 2.5mm cable which can carry 3Kw load/12amps) The fuse is there to protect the cable used in the lead, so be aware that it's not suitable to use a 13amp fuse in a cable designed to carry only 10amps/2.5Kw maximum. Likewise fuses within each device plugged into the extension are protecting each device. The rating of a fuse marked is the maximum current that the fuse will carry, tables are used to define at what any particular fuse will blow when loaded up. [Plug fuses are manufactured to BS1362]