Why are there only two fixed points on the earth?
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poles and equator are the two points
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Earth has two fixed reference points-the North and South poles-a great Circle-the equator-lies exactly between them. Using the equator we can measure the angle north or south of it.This is called latitude.
Earth fixed point for fixed installation to earthed switchgear parts, with adjustable turning limitation to the right or left to 70°or as fixed type,advantageous in narrow switchgear sections.
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