Why Choose Us

News
News NEWS

The Advantages of Preformed Helical Fittings for Overhead Line

Date: 2018-01-11
views: 182

1 With excellent resistance fatigue properties

The conductor and ground wire are one of the most concentrated parts of bearing load in the overhead distribution and transmission power. They are easily damaged in the case of fatigue. Almost all the damage of conductor and ground wire occurred on the contact surface between the conductor, ground wire and fittings. Typical position is between the conductor, ground wire and the suspension clamps, dead end clamp, splice. Because the dynamic and static bending stress are the highest in these places.

Preformed helical fittings are opposite, which has long helical wire make a larger area uniformly for the static bending stress between fittings and conductor & ground wire, avoiding the concentrated point by pressure welding fittings.

The bending rigidity between the fittings and conductor or ground wire will be increased and the bending stress which is generated by aeolian vibration will be weaken when the preformed fittings are fitted.  

 

2 Easily installation, good consistency, maintenance-free

The preformed line fittings are easily installation with hands only, which improve the installation speed and efficiency. It normally only takes several minutes for skilled people. And we only need vision inspection for the quality after installed, which ensures good consistency for different fittings installed by different people.

The widely used preformed line fittings save many works on maintenance, which takes economic benefits.

3 High performance and energy saving

There are hysteresis and eddy losses for ferromagnetic material, which are widely used before caused big energy consumption. With the improvement of transmission capability, the energy saving fittings are popular.  And many preformed line fittings are made of ACS, which not only reach the requirement of mechanical strength for line, but also has lower consumption.

 

4 Better applicability

The preformed line fittings are designed for Galvanized stranded wire, ACS strand, aluminum strand, steel-cored aluminum strand and insulated cable.

 

5 Good non-corrosibility

The preformed line fittings are made of the same material of conductor or ground wire, which will reduce the galvano-cautery by different metal materials, prolong the fitting life.


6 Situation of application

With above advantages, the preformed line fitting are more and more popular, such as preformed dead end guy grip,. Suspension clamp, conductor splice…




Related news / Recommended news More
2020 - 01 - 20
Notice of Chinese New Year Holidays We thank you very much for your continuously support. Kindly note that our office will be closed from 24th Jan. to 30th Jan. inclu. for our Chinese New Year Holiday. We hope you all have a prosperous new year 2020 as well as your family.
2018 - 01 - 11
1 With excellent resistance fatigue propertiesThe conductor and ground wire are one of the most concentrated parts of bearing load in the overhead distribution and transmission power. They are easily damaged in the case of fatigue. Almost all the damage of conductor and ground wire occurred on the contact surface between the conductor, ground wire and fittings. Typical position is b...
2017 - 11 - 16
On Nov. 16th, the activity of "Prosperous Nanjing, Orange Flighting by Hundreds of enterprises" which was organized by Alibaba Nanjing has been kicked off. There are totally 91 enterprises signed up for this activity within 4 hours and 88 of them presented in the site at 9:00 that day. Eventually there are 300 "fighters" gathered in Nanjing to go endgame 2017. All the "fig...
Share:
                                  Copyright ©2005-2018  NANJING OCEAN-RUNPOWER ELECTIRC CO., LTD. 
犀牛云提供企业云服务
 Sanfu Road, Sanshan Industrial Park, Banqiao Sub-district, Yuhuatai District, Nanjing, China 210039
电话:+86 0755-2955 6666
传真:+86 0755-2788 8009
邮编:330520
Company name:Nanjing ocean-runpower Electric Co., Ltd.