M
found substations in the index and under reg 442.2 it says either Uf U1 or U2 so it must me U. what does U represent again please ..
u = voltage between lines.
Hard to get to grips with but this red book is good
Pg. 325 table 4b1A 70 degrees C thermoplasic insulated and sheathed cable to BS6004 is installed in an ambient temperature of 25 C for part of the run and then enters an area of 40 degrees C. the effect on the cable will be to....
Im trying to find the answer to this by useing the regs but what do I look up in the book
are you useing the green book Si, in my book table 4b1 is on page 267 ... weird
answers got to be D as its going down from 1.03 to 0.87.... thanks mate x
could i enquire the type of supply?