Global standards for conductor stranding include which type of resistance?

• A. Minimum AC
• B. Maximum DC
• C. Constant voltage
• D. Variable current

Answer: (B)

The correct answer is that global standards for conductor stranding include maximum DC resistance. This is critical because the DC resistance of a conductor impacts its efficiency. When current flows through a conductor, it encounters resistance which causes energy loss in the form of heat. Standards often set a maximum allowable DC resistance for stranded conductors to ensure they perform efficiently and safely under specific operating conditions.

By establishing a maximum DC resistance, manufacturers are encouraged to create conductors that minimize energy losses, ensuring optimal performance in electrical systems. This is particularly crucial in applications where effective power transmission is needed. The focus on DC resistance reflects the common usage of these conductors in various applications, including power distribution and electronic circuits.

The other types of resistance included in the question do not align with the standard considerations for conductor stranding. While AC resistance is relevant in alternating current applications, the emphasis on maximum DC resistance highlights a key parameter for assessing the suitability of conductors in many electrical systems.