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ESC extension cables

Started by Royston, Sunday,June 09, 2013, 12:49:43

Previous topic - Next topic

Royston

Hi
Just ordered HK650 frame and the ESCs sit in tray near motor so need to extend the 2 power cables to fc. I';ve already got motor extension leads which are rated at 18 AWG and don';t know if these will do the job. The ESCs are rctimer 30A opto.
Any advice appreciated.  :help:
Cheers
Roy

fruitsalad

18 guage copper wire should measure about 6.5 to 7.5 ohms per thousand feet. Ratings for 18 guage copper wire is 16 amps for very short runs withing a chassis..
dont grow up,just buy bigger toys!!!!

Royston

Hi fruitsalad, sorry dont know your name.
I';m afraid you may as well be talking in Russian.
Does that mean I can use the cables I';ve got or not??
Sorry if this seems daft but electrician I';m not.
Roy

firey1

i always work on the theory that if they are same gauge as the escs then they should be fine
most 30amp escs are running 16 awg wire and the extensions your looking at will be 18 awg wire so  a bit smaller and will have the lower amp max

i am using those extensions on my setup into a power hub but im a slow flyer and never go max throttle so get no where near max amps
so it would depend on your flying
the safest option would be to buy the wire and make your own if your an aggressive flyer thats likely to be flying max amps/ and if you go down this road your better off desoldering wire from esc and making them full length to suit your need this will  eliminate a connection

but that is only my opinion
MIKE

550 RC Spider quad for FPV
550 Alien quad (my sons now)
F450 quad
450 size bell 212, MD500,Augusta 109
600 size Huey running apm 2.5  3 planes  Taranis and 9xr  radios Skyzone FPV goggles

fruitsalad

extend the 3 motor cables rather than escs power cables..
dont grow up,just buy bigger toys!!!!

guest325

If you';re not sure about the wire gauge go for thicker, thin wires are poison to anything that relies on amps, they just get hot and sometimes overload other components, the other thing to remember is that the best wire for this sort of use is Silicon insulated or at a push tri-rated. Keep lengths as short as possible to help eliminate interference and overheat problems.
The best way if you';re confident enough with your soldering is not to extend but replace in one piece.

Royston

Cheers guys
I';m only tootling about/ hovering and get nowhere near full throttle so it sounds as though it should be ok for the moment anyway.
I don';t want to extend motor cables as the ESCs will be in a tray in front of the motors.
Thanks again
Roy

fruitsalad

if you must extend the esc power wires add 2 of these in parallel across the the escs power leads.
or your escs will blow over time..
http://uk.farnell.com/jsp/displayProduct.jsp?sku=1219468&CMP=KNC-GUK-FUK-GEN-SKU-MDC&mckv=sKQEInoUl|pcrid|19861121168|kword|eeufm1e221|match|p|plid|
dont grow up,just buy bigger toys!!!!

Britishguy