Multilayer insulation/parallel connection high-carrying-current energy-efficient cable and manufacturing method thereof
A multi-layer insulation and manufacturing method technology, which is applied in the direction of insulated cables, cable/conductor manufacturing, insulated conductors, etc., can solve the problems of unsatisfactory ampacity effect and large amount of insulating plastic used, so as to save insulating materials and increase ampacity , cost reduction effect
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Embodiment 1
[0077] This embodiment is about the production method of multi-layer insulation / parallel high current-carrying energy-saving cables with a single bare conductor 1:
[0078] Step 1, take a single bare conductor 1 ( figure 1 ) multiple strands, which are twisted into a central layer conductor structure by a bundle stranding machine ( figure 2 ), wherein the core wire in the middle of the central layer conductor structure is a non-concentric core wire, that is, the diameter of the core wire is larger than the diameter of a single bare conductor 1, and the two are not equal.
[0079] Step 2, the central layer conductor structure ( figure 2 ) of the product, twisted at the same time through the double-layer PE with mylar into such as image 3 products shown, then take a single bare conductor 1 ( figure 1 ) products are multi-axially placed on the rear frame of the cable forming machine, and 2 or more insulated wires 2 are added between an appropriate number of single bare cond...
Embodiment 2
[0088] This embodiment is about the production method of the multi-layer insulation / parallel high current-carrying energy-saving cable of the stranded bare conductor 3:
[0089] Step 1. Take a stranded bare conductor 3 product as a core wire, lead it out from the shaft hole of the cable forming machine, then take the stranded bare conductor 3 product and place it on the cable forming frame in multiple axes, and lead it out through the mold hole. Wrapped around the above-mentioned core wires, twisted as Figure 10 The product shown is wrapped in double-layer PE tape Mylar at the same time as stranding Figure 10 The outer edge of the product shown is the finished product ( Figure 11 )spare.
[0090] Step 2. Take the multi-axis stranding bare conductor 3 and set it up on the frame of the cable forming machine. Set two or more plastic insulated wires 2 between multiple conductors at an appropriate distance, and connect the multiple stranding bare conductors. 3 divided into 2 ...
Embodiment 1 and Embodiment 2
[0101] For embodiment 1 and embodiment 2, the specific instructions are as follows:
[0102] 1. The above-mentioned cable forming machine is divided into 2-3 sections due to needs, and each section is equipped with a wrapping machine for backup.
[0103] 2. As mentioned above, whether it is two-layer insulation or three-layer or multi-layer insulation, the operation can be completed at one time, so as to save man-hours and reduce processing procedures.
[0104] 3. The first layer of double-layer PE tape has no adhesive on the first layer, and the second layer has adhesive on it. Among them: the PE tape without adhesive is to ensure that the internal conductor is not oxidized, and the PE tape with adhesive is to keep the first layer of non-adhesive The PE strap is firmly fixed.
[0105] 4. figure 1 The single bare conductor 1 shown can be copper wire, alloy aluminum wire, composite copper wire or alloy copper wire (composite copper wire and alloy copper wire are specifically ...
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