Introduction of overhead cablesAn overhead cable is a cable for the transmission of information, laid on utility poles. Overhead telephone and cable TV lines are common in North America. Elsewhere, overhead cables are laid mainly for telephone connections of remote buildings and temporary mechanisms, for example, building sit...
Internet optical fiber cable will show a trend of polarizationAt present, the network has gradually become the national strategic level of things.Then the network infrastructure with the Internet concept of the wind rises, in general, the fiber the general life of only 20 years, and after laying it is difficult to change, with a fixed obviously.
Accord...
The specific installation method of the cableThere are some basic requirements and characteristics of the installation, viz, safety requirements, assessment of general characteristics, the low voltage generating sets, standards, and under voltage. Scope, object, and fundamental requirements for safety apply to all installations and se...
Test method for peroxynitrite of tin-plated copperThis test can be done by the following methods.
Method A
In this method; the sample is immersed in persulphate solution and comparing the solution after the test with an equal volume of reference standard color reagent for depth of colors.
Method B
In this method, the mass of copper dissolved is e...
Tin Sulfate Conductor TestThis test is done on tinned copper cable wire to determine the exposed copper. The tinning process of copper may not be perfect due to which there is the possibility of the formation of pinholes on the conductors, thereby defeating the purpose of the application of tin.
Why copper wires are tinned?
Tin acts as...
Investment in Rwanda's power infrastructure ends
November 6th, the forum for the investment of the power and infrastructure of Rwanda was concluded. The conference called for the abolition of energy barriers, the introduction of a competition mechanism, and the reduction of electricity prices.
The theme of the forum is to promote natio...
Long-term supply contracts for natural cables should not be refusedAccording to a Russian news agency reported on November 23rd, Russian President Vladimir Putin said, natural power cable production countries should not refuse long-term cable supply contracts and the "take or pay" principle.
Putin said at the natural cable exporting countr...
35 kV transmission and substation project put into operationOn November 15th, the 35kV Yingshan Tao River project was successfully put into operation with the switch, cable, and support.15.4km 0.55MVA beach, one new river Tao of Yingshan learned 35kV Power transmission engineering project by the national network of Yingshan County power supply com...
Reel trailers for underground cable installation workReel trailers are in various designs and configurations. They normally carry from 1 to 4 reels. Care should be taken in the selection of a safe and functional reel trailer with capacities equal to the size and weight of the conductor reels.
A Manual Reel Trailer is most commonly used fo...
Pulling equipment for underground cable installationDrum type winches - A common practice is using the same drum puller for overhead and underground, or a bed winch, to pull in the URD conductor. A drum-type puller or winch has no way to monitor actual line tension. Also, the maximum pulling capacity is obtained when the drum is empty. ...
