Retardant XLPE Insulated PVC Sheathed Aluminum Power Cable Zr-Yjlv-3*300+2*150

الوصف

Aluminum cable features Description:
 
   The density of aluminum conductor itself is relatively small copper cable, light weight aluminum cable specifications section, the relative carrying construction laying easier. The most obvious advantage is that the same types of specifications aluminum cable cheap. Usually about *0% of the same size copper cable prices. The carrying capacity is about *0% of the copper cable. Significantly lower investment cost, cost-effective. Suitable for low-budget works or temporary power. But also because they are inexpensive, unattended mines and other areas of the site easily stolen. Also in the copper conductor corrosive conditions or ammonia compressor room, large span overhead transmission lines, larger cross-section adapted to other environmental IF line aluminum cable.
 
   Since the resistivity of aluminum conductors large line losses and voltage drop is relatively high, and the relative strength of copper ductility is poor, easily oxidized corrosion and other characteristics, in some cases should not use aluminum.
 
Power cable installation considerations, the use of properties and operating conditions laid
 1, Power Cable Installation Considerations
 
 Cable and heat pipe parallel to maintain a distance of 2m to install the cross should be kept 0.5m.
 Cables and other pipes are to maintain a distance of 0.5m when installed parallel or cross.
 When buried cable installation, ***5KV cable buried depth of not less than 0.7m.
 When *0KV and the following cables installed in parallel with each other spacing is not less than 0.1m, ****5KV not less than 0.*5m; when cross-installation distance of not less than 0.5m.
 Cable laying temperature not lower than 0 ºC, bending radius: multi-core cable ≥*5 (D + d), single-core cable ≥*0 (D + d), (D is the cable diameter, d is the outer diameter of the conductor).
 6KV and over cable connector:
 
  When installation 1,Cable Terminal, must strip semiconductor electrical shielding layer, the operation should not damage the insulation, should avoid the uneven marks, if necessary, polished with sandpaper; shield ends should be smooth, and put graphite layer (carbon tablets) cleaned.
 
  2 plastic insulated cable end copper and steel armor shield must be grounded to short circuit this principle and avoid unbalanced three-phase running steel armor end induced electromotive force, even "ignition" combustion jacket and other accidents . Lead grounding applications require the use of my tinned braided copper wire, copper cable and connect ferrochrome soldering, should not use the blowtorch to avoid burning insulation.
 
  3,three-phase Copperbelt shield should be connected to the ground, respectively, pay attention to the grounding wire and steel armor shielded grounding wire should be separately leads, insulated from each other, welding ground should be the lower position.
 
  On the cable ends and the middle joint of the basic requirements:
 
     . A conductor connected;
 
     . B insulation reliable, recommended irradiation cross-linked heat shrinkable silicone rubber insulating material;
 
     . C a good seal;. D sufficient mechanical strength, can adapt to various operating conditions.
 
   Cable ends must be used to prevent the erosion of water and other corrosive materials, to prevent water tree caused by insulation breakdown caused by aging.
 
   Cable handling crane or forklift must prohibit the transport flat, flat, to be put to use when a large cable car cable installation, in order to avoid cable damage by external forces or because of artificial drag and abrasions. If for some reason can not be cable laying, it should be stored in a dry place, away from direct sunlight to prevent, water and other cable ends. Note: wire and cable wire and cable installation should be familiar with the performance of the installer or as a full-time technical staff, such as the matter is still not clear, ask the relevant technical department or consult factory technical department.
 
2, using the properties of the cable laying and operating conditions
 
  * Rated voltage 0.6 / 1KV PVC insulated power cable
 
   1,cable conductor long-term allowable working temperature: ≤*0 ºC
   When 2,short (the longest duration of no more than 5S) maximum operating temperature of the cable: **0 ºC
  3, Cabling after being subjected to a DC voltage 3.5KV / *5min without breakdown.
   4, laid in the air
       a center distance of single-core cable laying parallel: **5mm2 and below 2 times the cable diameter: **0mm2 and above *0mm
       . B Ambient temperature: *0 ºC
     
 
* Rated voltage *5KV and below XLPE insulated power cable
 
   1 cable conductor long-term allowable working temperature: ≤*0 ºC
   When 2short (the longest duration of no more than 5S) maximum operating temperature of the cable: **0 ºC
   3,air laying
      a single-core cables laid in parallel from the center when:. **5mm2 and below 2 times the cable diameter: **0mm2 and above *0mm
      . B Ambient temperature: *0 ºC
   4, Buried
      a. Single core cables are installed, the center distance of 2 times the cable diameter
      b ambient temperature:. *5 ºC
      c soil thermal resistivity:. 1.0K · m / W
      . D Buried Depth: 0.7m
 
 
Aluminum insulated wire ampacity multiple relationships with section