SMALL UPS...

Author	Message
Grogster Admin Group Joined: 31/12/2012 Location: New Zealand Posts: 9440	Posted: 02:53am 17 Jun 2024         phil99 said   Perhaps check how many pairs are are available to parallel up. I have simply been assuming 2 but there may be more. Also if the distances are long enough they may have used Exchange cables which are 0.4 sqmm, so half the resistance per pair. The cables are fully-underground burial rated cables with the very hard black-plastic sheath, and the pairs inside are all packed with grease to repel moisture in service. The trunk cables that run around the outside of the village are a combination of either 100-pair or 50-pair, with 25-pair and 7-pair grease-filled cables of the same type, routing lines off to the smaller areas. But the point I am trying to make here, is that there will be HEAPS of spare pairs - paralleling them up to reduce the line resistance, won't be an issue, as around 90% of these cables are now redundant, as all the residents have been ported over to either fiber or wireless connections, as Chorus(the company that maintains the communications network across NZ) want to decommission the entire copper network, and I think the deadline for that is next month, actually.   In other words, those still on copper who have NOT made the move by next month, will loose their phone connection when they finally switch off the entire copper network. But that leaves the village with a lovely network of then-redundant copper cables that I am planning and hoping to use - one way or the other - for the power to the amps.