Radial Voltage Drop Calculation?... By Load or MCB Rating?

mapj1:

Mind you the one time H07 and similar non shielded 'soft' flex are used (and used by the mile)  are the film industry, and events like pop festivals and concerts, where it gets a real beating, being run over and knotted and quite often pulled about with fair robustness during installation as well  -  and it is in fact surprisingly robust. But yes, you do expect to see ferrules, and the right sort of cord grips at each end.

You may well want something of that sort at least for the last hop from isolator to immersion heater. But I'd certainly agree, it is not common for fixed wiring, where something with a harder jacket and less finely stranded cores is expected.

Mike.

Cheers Mike.

What options would you personally go for?


Cable choice 1 - For main cable runs to power sockets and/or isolators around perimeter run via tray and/or clipped direct, all above 1m from ground - NYY?  SWA?  Something else?


Cable choice  2 - For secondary cable runs from Isolator (1m above ground) to Immersion Elements (30cm above ground) -  CY?  NYY?  SWA?  Something else?

 

mapj1:

Mind you the one time H07 and similar non shielded 'soft' flex are used (and used by the mile)  are the film industry, and events like pop festivals and concerts, where it gets a real beating, being run over and knotted and quite often pulled about with fair robustness during installation as well  -  and it is in fact surprisingly robust. But yes, you do expect to see ferrules, and the right sort of cord grips at each end.

You may well want something of that sort at least for the last hop from isolator to immersion heater. But I'd certainly agree, it is not common for fixed wiring, where something with a harder jacket and less finely stranded cores is expected.

Mike.

Cheers Mike.

What options would you personally go for?


Cable choice 1 - For main cable runs to power sockets and/or isolators around perimeter run via tray and/or clipped direct, all above 1m from ground - NYY?  SWA?  Something else?


Cable choice  2 - For secondary cable runs from Isolator (1m above ground) to Immersion Elements (30cm above ground) -  CY?  NYY?  SWA?  Something else?