grouping factor

[beaver74]

hi all

does any one know if there is a min length of cable which must be calculated for grouping

Ie
a drop of 500mm to a fuse board
a drop of 1000mm ect
and i read some were that these are for cables loaded 100% of the time so would these need calculating on a light bed room ring of lighting

500mm drop seems a bit excessive to me any comments

 

[acat]

Grouping not normally used for domestic as it is very rare that all cables will be inuse at the same time, different set of circumstances in commercial situations.


Chris

 

[beaver74]

thank you i was of the same apinion but wanted comfirmation