Therefore, the slack calculation and control during the laying process can be regarded as the whole, consisting of the numerous time periods (ΔT). At this time, the slack can be calculated from the length formula transfer into speed calculation formula: (6.3)Slack=Cabledischargespeed−Cableshi...
* Tray loading and discharging easy with low labor consumption. 1.Man-machine interface + PLC control system, torque, production, wire speed touch screen setting, alarm, formula system, easy to operate. 2.The pitch is accurate, changing the mechanics, so the...
[9] found that for various cables containing vinyl compounds, the full-size cable tray test and cone calorimeter had good correlation in terms of heat and smoke release. Especially under the condition of 20 kW/m2 external radiant heat flux, the correlation was good. Therefore, most scholars ...
as shown inFigure 6c. Loose anchor bolts or cables often detach the tray from the roof or coal wall surface (Figure 6d,f), and some loose anchor cables are secured to the tray (Figure 6e). The most common cause of roof steel strip tearing is shear failure (Figure 6g). Bending failure...