Mac off the machine, I press the power button, off is off, what is no longer open it! Comrades, friends, what should i do?
The door has been done to buy a stud welder, the small screw spot welding on the door on the OK, absolutely strong, the door has not done a direct welding of some small U-shaped board, according to the need to punch tapping screw fixed Yes. But still stud welding machine is better, many occasions with the get, and flexible
Cable This industry first to distinguish the cable model is the kind of cable, that is, to the above mentioned "cable knowledge Daquan" to understand the cable model and character meaning. After a clear classification, refer to the corresponding cable according to the corresponding classification criteria. The cables are divided into high voltage cables, power cables, control cables, overhead cables, rubber cables, marine cables, mining cables, special cables, computer cables, branch cables, according to insulation materials, voltage ratings and use areas. .and many more. You mentioned KVV and KVVP belong to the control cable, K - for the control of the cable series of signs, while the two models of the cable difference with the KVVP - PVC insulated copper wire braid shielded PVC sheathed control cable Than the KVV - PVC insulated PVC sheathed control cable, more copper wire braided shield.
Oh, I was engaged in the installation, I personally think that in the shear wall to install the box is the need to be very careful, once put bad repair is very troublesome. My method is such a line after the release of the box, such as switch requirements from the ground 130CM, 15-20CM from the door, you can put the line to install accurately. There are fixed when the box to be tied to the steel, where the special attention to the box must be tied to the positive, to prevent the template when you turn the box, of course, the box to put sawdust, it is best to wet, And the more the better, so when you find the box is easier. Sometimes the template and your box get together far away, the concrete is easy to cover your inside the box, you'd better just put the template, not playing the concrete when the brush is on the box with the template on the upper layer of red paint , So when looking for a place to open a red paint on it. Brothers do not know where you can ask me, pure hand to play
