InterviewSolution
| 1. |
What Do You Mean By The Terms ‘the Nominal Cross Section’, ‘the Actual Cross Section’ And ‘the Equivalent Cross Section’ Of The Spiral Stranded Conductors Of A Cable ? |
|
Answer» The NORMAL CROSS section is the area of the cross section of ONE conductor in a plane perpendicular to its length multiplied by the number of conductors. The actual cross section is the area of the oblique cross section of a conductor produced by cutting the stranded conductor by a plane perpendicular to the core of the cable multiplied by the number of conductors, which is ALSO greater than the nominal cross section. The EQUIVALENT cross section is the cross section of a solid conductor of the same length as the cable and having the same resistance at the same temperature, which is less than the nominal cross section because of the incase in resistance due to spiraling. The normal cross section is the area of the cross section of one conductor in a plane perpendicular to its length multiplied by the number of conductors. The actual cross section is the area of the oblique cross section of a conductor produced by cutting the stranded conductor by a plane perpendicular to the core of the cable multiplied by the number of conductors, which is also greater than the nominal cross section. The equivalent cross section is the cross section of a solid conductor of the same length as the cable and having the same resistance at the same temperature, which is less than the nominal cross section because of the incase in resistance due to spiraling. |
|