Is it necessary to make a flat iron connection in the fire axle
The cross-sectional area of the cable through the embedded pipe is 40%
In general, overhead or line in the line is not through the pipe, but to see what your line and requirements: The following is to wear the tube of the two cases, not comprehensive 1: the line voltage level is very low (And if the metal tube) 2: or this is the case where the other lines of the same trunking affect its signal transmission, and it is necessary to wear (and if the metal pipe) The voltage level of the root line is very high, and the same slot with a lot of low voltage level signal line, then wear it a good
You are talking about solitaire and strands. As a power line when the multi-strand can effectively avoid the core of the eddy current generation. So the big power lines are mostly twisted together, and this line of softness is good. As a control line or signal line, it is not very care about these, because this line more detailed. The cabinet inside the multi-purpose strand, this type of line is easy to shape out more beautiful. --- Supplement - can be no problem Two lines of 4-40mA24V can be used alone
