WDZ-YJZ4 * 240+1*120 is a five-core cable. Check the 5-core * 1.3 coefficient quota, which is compiled according to the three-core or three-core connection, so there is no check option for three-core and four-core without adjusting the quota.
Cable:
Definition 1: A conductor consisting of one or more mutually insulated conductors covered with an insulating protective layer, which transmits electric energy or information from one place to another.
Definition 2: Usually, it is a rope-like cable twisted by several or several groups of steel wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center, and the whole shell is covered with a highly insulating coating. The cable has the characteristics of internal electrification and external insulation.
Question 2: How to determine the quota of cables and wires? It is suggested to ask in the power cost forum. Many Daniel, what overhead lines and cables are not a problem.
Question 3: The power cable laying casing is the same, except for VV4*240+ 1* 120, the unit price of cable head should be * 1.3 (because the quota is calculated according to aluminum core cable). Of course, the cost of the main material is different. You know the quota, which means that all power cable head projects are aluminum core cables. The labor cost, material cost and machinery cost of copper core power cable head project are multiplied by the coefficient 1.2, and the labor cost of manufacturing and installing double shielded cable head is multiplied by the coefficient 1.05. Five-core cable head installation shall be multiplied by the coefficient 1.2 according to the three-core cable head installation project of the same section. Power cable laying works are considered as three cores (including three-core grounding). The labor cost, material cost and machinery cost of five-core power cable laying project are multiplied by the coefficient 1.3, and the six-core power cable is multiplied by the coefficient 1.6. Every time a core project is added, labor, materials and machinery will increase by 30%, and so on. Single-core power cable laying is multiplied by the coefficient of 0.67 according to the cable project with the same cross section. Laying of single-core power cable with cross section greater than 400mm2 to 800mm2 shall be carried out according to the 400mm2 power cable project. Single-core power cable with cross section greater than 800mm2 shall be laid according to the labor cost, material cost and machinery cost of 400 mm2 power cable project multiplied by the coefficient 1.25. The terminals of cable heads above 240mm2 are special-shaped terminals, which need to be processed separately and calculated (or adjusted) according to the actual processing price.
Question 4: What is the test quota for power cables? Cables below 1KV do not need power cable test, which has been included in the subtitle. For cables above 1KV, a separate power cable test is required.
Question 5: What are the cable specifications for laying copper core power cables? They are1(4x35+1x16) and 1(4x95+ 1x50) respectively. Corresponding to five-core cables (three 35mm phase wires and a 35mm neutral wire plus a 16mm grounding wire) and five-core cables (three 95mm phase wires and a 95mm neutral wire plus a 50mm2 grounding wire) respectively. () The outer 1 should mean that this cable is a multi-core cable. The two kinds of cables you mentioned should be low-voltage cables, which are special and rarely used. It may be used in underground neutral point ungrounded system.
As for the prices of these two kinds of wires, there are many wire and cable manufacturers now, and the wire cores are all copper cores in the end. Aluminum core? And take-out without a grade. And its price is hard to say. The price difference of cables with the same specifications from different manufacturers is not small! The exact price can only be obtained by contacting the manufacturer for consultation.
4x35+1x164x95+1x50 are all five-core cables, of which three-phase wires (generally represented by red, green, blue or red, green and white), the other one with the same cross section is a ground wire (generally black), and the smaller one is a neutral wire (generally yellow-green cross color).
As Kun Shi said, the price of cables varies greatly due to different voltage grades, different insulation materials and different forms of outer sheaths. For example, the price difference between the previous VV22 and VV29 PVC insulated PVC sheathed steel belt armored cables and the current YJV22 is about 3 times.
What does the power cable section in the quota refer to now? For the single-strand part, I have a 5* 16 cable. Can I cover it like this? You can apply this subtitle.
It is a single-strand cross section, and a 5* 16 cable can cover less than 35 square meters.
The cross-sectional area of power cable in the quota is less than 35mm2, which refers to the cross-sectional area specification of a core cable. The cross-sectional area specification of the 5* 16mm2 cable you mentioned is 16mm2,5 *16, which means that this cable has five cores, and the cross-sectional area specification of each core is 16mm2. When choosing a set of items, it should be within the range of 35mm2 of this quota subhead. The choice inside is right. In addition, if the cable is unequal-diameter cable, such as YJV-3*50*2*25, it means 5-core copper cable, 3-core 50m2+2-core 25mm2, and the cross-sectional area of the cable is calculated as 50m2. Therefore, when selecting the socket item, the subtitle should be set below120m2 (when selecting unequal-diameter cable, the cable specification is calculated according to the maximum cross-sectional area of one core.
For 5* 16 cables, the cable laying quota can be less than 35 square meters, and the cable laying quota is the single-core sleeve with the largest single-core section. For details, please refer to Article 32 1 10 of the 2008 National Unified Installation Project Budget Quota Interpretation Compilation. 2. The power cable laying quota is considered as three cores (including three-core grounding), and the 5-core power cable laying quota is multiplied by the coefficient1.3; Multiply the 6-core power cable by the coefficient 1.6, and the quota will increase by 30% for each additional core, and so on. For more information, please contact the map ...
Question 6: How to determine the power cable piping quota? Take the installation bill of quantities in Shandong Province as an example. The list and quota of cable supports are: installation project-electrical equipment installation project-cable installation-cable support listNo.: 030208005-000 Cable support unit T quotaNo.: 2-364 General iron installation unit 100kg. Need to calculate the weight of the cable bracket. (looks like it)
Question 7: What quota should be applied to power cable laying in residential areas? The municipal quota cannot be applied to the power cable laying quota of the installation project.
Question 8: Which set of power cables is VV22-3 * 4 rated? Power cable v22-3*4 sets of "copper core power cable laying section below 35mm2 ~ 2". The fixed base price coefficient is based on the coefficient of "three cores and above, 10mm2 and below" for copper-core power cables. The main material price is the market price of vv22-3*4 cable.
Question 9: What does YJV-4 *150+95 cable mean? How to set cross-section XLPE insulated PVC sheathed low-voltage power cable? The cross section may refer to the cable outer diameter in the cable sample.
Besides, your line is non-standard, and the national standard should be 4* 150+ 1*70.
The outer diameter of the cable is about 55.4 mm.
Question 10: Look at the picture. Why does a list need to set the power cable quota twice? Thank you! ! ~ 20 points, I suggest you look at the quota and see it clearly. Where has it been set twice? One is a cable, the other is a cable head, and the rating number is different. I don't know what I'm doing.