YFV mining operation
Publish: 2021-04-26 03:39:40
1. YFV radiation crosslinked polyethylene insulated power cable
YJV radiation crosslinked polyethylene insulated power cable
at present, in the cable proction, the most commonly used insulation plastics are polyethylene and polyvinyl chloride, among which polyethylene material has better electrical properties and better crosslinking, so a variety of instrial crosslinking proction processes, chemical crosslinking and radiation crosslinking, have been developed. In addition to the performance shown in the table below, in the process of proction and laying, the insulation layer of the commonly used cross-linked cables has higher hardness and strength (at room temperature), especially more difficult to peel than PVC insulation. Because of the best crosslinking performance, the highest crosslinking degree and the highest peel strength of the radiocrosslinked cable. If the stripping of cross-linked cable insulation is relatively easy (similar to PVC), it must be that the degree of cross-linking is not enough or there is no cross-linking. Under normal circumstances, the crosslinking degree of the crosslinked cable proced by warm water crosslinking process is not enough. The reason is that the crosslinking degree of this kind of proct is relatively low, and the crosslinking process is discontinuous and cannot be controlled automatically. It is greatly affected by human factors and is prone to under crosslinking.
YJV radiation crosslinked polyethylene insulated power cable
at present, in the cable proction, the most commonly used insulation plastics are polyethylene and polyvinyl chloride, among which polyethylene material has better electrical properties and better crosslinking, so a variety of instrial crosslinking proction processes, chemical crosslinking and radiation crosslinking, have been developed. In addition to the performance shown in the table below, in the process of proction and laying, the insulation layer of the commonly used cross-linked cables has higher hardness and strength (at room temperature), especially more difficult to peel than PVC insulation. Because of the best crosslinking performance, the highest crosslinking degree and the highest peel strength of the radiocrosslinked cable. If the stripping of cross-linked cable insulation is relatively easy (similar to PVC), it must be that the degree of cross-linking is not enough or there is no cross-linking. Under normal circumstances, the crosslinking degree of the crosslinked cable proced by warm water crosslinking process is not enough. The reason is that the crosslinking degree of this kind of proct is relatively low, and the crosslinking process is discontinuous and cannot be controlled automatically. It is greatly affected by human factors and is prone to under crosslinking.
2. Both Z and FV are functions of Z, so according to the derivation rule of proct, yzfv's derivation of Z is YFV · Z & # 39+ yz·fv'= yfv+yz·∂ fv/∂ z
3. Mathematical problems
this is too difficult
this is too difficult
4. It's not a random name, of course
you can look for the reference manual, which is very clear
you can look for the reference manual, which is very clear
5. It will not change. Since YF issued 21000 pieces, it will never issue any more. 100% of it depends on digging. It will be halved every week and finished in 10 weeks. All your income belongs to your own labor.
6. I don't know where the government affairs hall is
I went to the public security bureau to have a special passport department
call the Public Security Bureau and ask for the hukou, ID card and photos. I can't remember clearly
you'd better call 114, check the Public Security Bureau and ask the passport department.
I went to the public security bureau to have a special passport department
call the Public Security Bureau and ask for the hukou, ID card and photos. I can't remember clearly
you'd better call 114, check the Public Security Bureau and ask the passport department.
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