On Sun, 12 Mar 2017 17:44:58 +0630, yky wrote:

What connector is used to splice 5 mm power cable? Cannot be wire nut,
can it? Photo links are highly appreciated.
Split Bolt Line Taps. Often referred to by the original
manufacturer's name - Burndy

the catalog page with photos is at
http://ecat.burndy.com/Comergent/burndy/cat/603260