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A.C.S.R conductor having 7 steel strands surrounded by 25 aluminium conductors will be specified as
  • a)
    25/7
  • b)
    7/25
  • c)
    50/15
  • d)
    15/50
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A.C.S.R conductor having 7 steel strands surrounded by 25 aluminium co...
Representation of ACSR Conductor:
A standard conductor is represented as A/S/D for ACSR conductor.
Where,
A is the number of aluminum strands.
S is the number of steel strands.
D is the diameter of each strand.
Example: If the ACSR conductor having 7 steel strands surrounded by 25 aluminum conductors will be specified as 25/7.
Additional Information
Calculation of the number of strands in a stranded conductor:
If there are ‘n’ layers of strands in a stranded conductor.
Number of strands of the conductor = 3n2 - 3n + 1
Calculation of overall diameter of a stranded conductor:
If d mm is the diameter of a single strand in the conductor.
The overall diameter of the conductor = (2n + 1) d unit
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Most Upvoted Answer
A.C.S.R conductor having 7 steel strands surrounded by 25 aluminium co...
Explanation:
In the given question, we have an ACSR (Aluminium Conductor Steel Reinforced) conductor with 7 steel strands surrounded by 25 aluminium conductors. We need to specify this configuration.

ACSR Conductor:
ACSR conductor is a type of overhead conductor that consists of a central core made of steel strands surrounded by one or more layers of aluminium conductors. It is widely used in transmission and distribution lines due to its high strength and conductivity.

Configuration of ACSR Conductor:
The configuration of the ACSR conductor is specified by indicating the number of steel strands and the number of aluminium conductors. In this case, we have 7 steel strands and 25 aluminium conductors.

Specification:
To specify the ACSR conductor configuration, we represent it as a fraction, with the number of aluminium conductors in the numerator and the number of steel strands in the denominator.

Calculation:
In this case, the specification of the ACSR conductor with 7 steel strands and 25 aluminium conductors will be 25/7.

Answer:
Therefore, the correct answer is option 'A' which represents the ACSR conductor configuration as 25/7.
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