Figure 3. Relationship moments in balance The proposed crane in this paper reduces the ballast and eliminates the anchor, since it will be auto balancing''. The concept of self-balancing involves eliminating anchoring system, which is replaced by a movable counterweight as shown in Fig. 4. Figure 4.
L5-20 and L5-30 Cords â 120V. Many of the higher end portable generators have a L5-30R outlet. This is handy as it allows you to connect a L5-30P to the generator and use a multiple type 5 outlet at the other end allowing you to use 2 or 3 tools or appliances that use less than the total rated amps or 3600 watts.
An extension cord that you plug into your house is neither positive OR negative. It uses alternating current so there's a live wire and a ground. Only direct currents (like those in cars) have positive and negative. On a two wire extension cord the ribbed side is the neutral. If you look close and it is a moulded plug on the end of the extension cord you will find that the side with the rib is also the same side as the wider blade on the plug.