That there is steel in the middle of something.
The wire you refer to is ACSR. Aluminium Conductor Steel Reinforced. The steel core is used to give the wire structural strength. When the conductor is spanned across great distances between poles or towers the total weight of the conductor between spans would be too much for just the aluminum wire to support. The steel center core is also known as the cables messenger.
ELM is a category of the Type of Electrical Conductor/ Cables. ELM is one & Willow is another Type. ELM Stands for Electro-Mechanical & Willow is basically a class of Tree Wood.
Core basically means the center of an element or thing on which the whole thing depends upon
Galvanization is just a surface treatment, and says nothing about the strength of the core material. You could have mild steel, one piece galvanized and one not, and they'd be equally strong.
The World Trade Center (WTC) towers were constructed primarily using structural steel with a high-strength alloy, featuring a steel core surrounded by steel columns. The steel used was specifically chosen for its strength and fire-resistance properties.
Yes. Steel core can be used indoors. Copper core outside.
Because the steel strengthens the cable
Hysterisis losses are the losses which are taking place in the iron or steel core due to reversal of magnetisation of steel core.
Only if the steel bolt has been magnetised, or is the core of an electromagnet.
yes
no
Because I said so Because steel remains magnetised Source: me
The reason for this is that aluminum has much higher electric conductivity than steel, but otherwise its mechanical properties are much worse. Steel core actually carries a cable.
no
Soft iron has a greater permeability than steel. BTW, the only reason for laminations is to reduce eddy currents in the core. It has no effect on permeability or inductance.
Laminated steel plates.
steel is note for an elecromagnet because once it turned magnetic it stays magnetic