For connecting transformer busbar and melting electrodes mutilayers stranded annealed bright bare copper electrolytic wires insulated with polyester tapes varnished cambric double insulation having effective thickness of 20 mils duly impregnated with highly polymerised thermosetting varnish suitable to withstand 400 volts. Overall asbestos braided with heat proof flame proof black compounded effecting overall strength of asbestos as hard & as flexible to suit trailing ans high ambient temperature conditions generally manufactured in 400 sq. mm. cross sectional area any other size as per customer's design may be fabricated.