The cutting machine is suitable for the cutting of Chinese medicinal herbs including rhizomes,fruitages,leaves,and grasses etc before it being fine processed,grinded or extracted,as well as for the cutting process of foodstuff(sliced fruit,preserved fruit),aquatic products(sliced kelp),tobacco leaves,and tea leave etc.This slicing machine is composed of motor, variable speed mechanism, tool rest, step and retreat material, adjustable tool rest machinery and so on. Due to the use of advanced step feeding, so that the cut of the sheet shape uniform, can freely control the feeding distance, will not cause the material extrusion knife bad situation. Due to the reasonable layout, the machine is easy to operate, light appearance, light weight. This machine is mainly composed of two parts, such as conveying and cutting medicine, machinery and so on.
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Answer: In the cable line with the rubber sheathed cable at the end of the metal sheath, in order to ensure that the induced voltage in the sheath does not exceed the allowable standard, a conductor laid in parallel along the cable line must be installed, and the two ends of the conductor are grounded. This type of conductor is called a return line. When a single-phase ground fault occurs, the ground short-circuit current can flow back to the center of the system through the return line, and the magnetic flux generated by the ground current through the return line cancels the magnetic flux generated by the ground current of a part of the cable conductor and can be reduced. The induced voltage of the sheath in the event of a short circuit.
2. Can cable engineering be divided into several projects?
answer:
(1) Site transportation: Including the loading, unloading, transportation and return of engineering materials from the warehouse to the construction site.
(2) Local projects: including road excavation, tunnels, and trench construction.
(3) Laying project: including laying, intermediate head making, flipping cover plate, buried pipe, school tide, traction head making and so on.
(4) Both ends of the project: including the production and installation of supports, suspension bridges and their foundations, the production of terminal heads, the installation of oil pressure and signal devices, and the testing of electrical properties.
(5) Plug and stop works: including the production of oil-filled cable plugs and heads, installation of fuel tanks, automatic drainage, and signal devices.
(6) Grounding engineering: Including insulation joints, transposition boxes, protectors, and grounding box installation.
3. What inspections should be performed on the acceptance of cable lines?
Answer: (1) The cable specifications should conform to the regulations, the arrangement should be neat, no damage, complete signs, correctness, and clarity;
(2) The fixed bending radius of the cable, the relevant distance and the wiring of the metal sheath of the single-core power cable shall meet the requirements;
(3) The cable terminal and the middle head are not leaking oil, and the installation is firm. The oil pressure of the oil-filled cable and the setting value of the meter should meet the requirements;
(4) Good grounding;
(5) The cable terminal is in correct color, and the metal components such as brackets are complete;
(6) There should be no debris in the cable trench, in the tunnel and on the bridge, and the cover is complete.
Do you know common wire and cable common sense?
1. Why does a single-core cable jacket ground in one end of the cable must be installed with a return cable laid in parallel along the cable?