Electrical diagram question?

Question

The catenary illustrated is an 8.5mm2 steel cable having a mass of 0.07kg per meter. It supports a 6mm2 twin and earth sheathed cable having a mass of about 0.27kg per meter. The manufacturer recommends sag, over 20m span, of 30mm for every kg supported. Complete the diagram and write the letters that correspond to the letters on the diagram.

Answer 1

Please edit your question by adding, "additional details", and include a link to the illustration.

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