On Tue, 06 Mar 2018 14:41:39 +0000, Chris Hogg wrote:

snip

Good job the interconnctors are DC!

I didn't know / imagine that (or guess why)?


AIUI short-distance undersea interconnectors are sometimes AC, but
long-distance ones are almost always DC, because they experience
significant capacitance* losses if AC due to being surrounded by an
earthed conductor, i.e. salt water.

*but might be inductance. IANAE

Thanks Chris, it makes sense.

Cheers, T i m