日本肉体xxxx裸交丨7777奇米四色成人眼影丨av免费网站在线观看丨久久综合亚洲色hezyo国产丨精品性高朝久久久久久久

Qingdao Huaqiang Cable Co.ltd HOME > PRODUCTS > POWER CABLE > VV series

Products

VV series

VV Cable

      The first V is the main insulation material of the cable is PVC polyvinyl chloride, that is, the meaning of plastic. The second V is the cable sheath material is also PVC.

     The full name is copper conductor conductor PVC insulation and PVC sheathed power cable.

Chinese name

      VV cable

Full name

    PVC insulated PVC sheathed cable

     Two letters V

      The materials representing insulation and sheath are PVC

      VV Cable full name

     Copper (aluminum) PVC insulated PVC insulated PVC sheath power cable, an important member of power cable, two letters V representing insulation and sheath materials are PVC;

product mix

      The components from inside to outside are conductor, insulation layer, filling layer, (steel layer) and sheath layer. Now the most commonly used conductor materials on the market are of course copper conductors; the insulating and outer sheath materials are PVC, or PVC plastics; the filling layers are generally soft nylon materials, in order to prevent direct contact between the conductors in the cable; the steel tape armoured VV cable is a VV22 cable and a steel strip. The effect of armour is compression and can be used for buried.

Standard of execution

      GB/T 12706.1-2008;

      Rated voltage

      Generally 0.6/1KV, or below 35KV

working temperature

      The long-term working temperature is not more than 70 C, the laying temperature is not less than 0 degrees C, and the maximum allowable temperature of the cable conductor is 160 C when the short circuit (the longest duration is not more than 5S).

      Allowable bending radius

      Not less than 10 times the outer diameter of the cable;

purpose

      Generally used as a power transmission hub, often buried in the soil or applied in the indoor, ditch, tunnel, the insulation distance between lines is small, no pole tower, less space, basically do not occupy the ground space.

VV Common specifications and models of cable

      The core number consists of 2 cores, 3 cores, 4 cores, and 5 cores、3+1、3+2、4+1;

     The cross section includes cables from 1.5 mm2 - 240mm2, such as VV3*95+1*50 cable, which represent 3 strands of 95 square cores plus 1 1 square wires.

TEL

tOP

主站蜘蛛池模板: 强睡邻居人妻中文字幕| 国产黄色片在线观看| 五月天精品视频在线观看| 国产蜜臀97一区二区三区| 久久er热在这里只有精品66| 韩国无码无遮挡在线观看| 亚洲欧美成人综合| 国产无套白浆一区二区| 第一福利在线| 精品综合久久久久久98| 亚洲国产精品久久艾草| 四虎影视久久久免费| 免费大片黄在线观看| 国产人妻aⅴ色偷| 亚洲国产精品特色大片观看完整版| 夜晚福利视频| 国产精华av午夜在线观看| 欧美色综合天天久久综合精品| 国产a国产片国产| 亚洲一级网站| 六月婷婷久香在线视频| 亚洲性色图| 国产无遮挡裸体免费视频在线观看| 久草午夜| 久久精品国产av一区二区三区| 成人做爰69片免网站| 国产 浪潮av性色四虎| 天天天狠天天碰天天爱| 少妇极品熟妇人妻无码| 国产精品久久在线| 亚洲国产精品一区二区久久hs| 噜啦噜色姑娘综合| 51视频国产精品一区二区| 久久无码中文字幕久久无码app | 久久精品一区二区免费播放| 亚洲欧美另类在线| 欧美激情第1页| 用舌头去添高潮无码视频|