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- 26 Jan 2019
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Hi Guys,
I realise you have probably seen several of these previously, but just want to confirm as volt drop calcs are not my strong point
I would like to get lighting to the end of my garden where I cannot run 240v without ripping up a newly landscaped garden - confirmed by electrician (it is a long story not for this topic as to why this came about!).
So my thoughts have come to using 12v ELV to run LED lighting. I have calculated the length to be a generous 20 meters from the DC adapter.
From what I have seen on a calculator (eg from www.calculator.net/voltage-drop-calculator.htm) if I was to use a 2.5mm cable at max 10amps (from a 150w adapter) there would be a drop of ~5.3v, leaving ~6.7v? Is this correct?
I was also looking at using the Techmar lighting system AC-DC adapter, cabling and maybe some of their lighting (but may run some cheaper non-techmar items from it also), but there is no mention in their guides on any length. They just advise total up the watts for the lights, pick the adapter higher than total, add the cabling and your good. Their cabling does look quite thick, but not sure what they are. Is this right?
What are my options?
Cheers,
Adam.
I realise you have probably seen several of these previously, but just want to confirm as volt drop calcs are not my strong point
I would like to get lighting to the end of my garden where I cannot run 240v without ripping up a newly landscaped garden - confirmed by electrician (it is a long story not for this topic as to why this came about!).
So my thoughts have come to using 12v ELV to run LED lighting. I have calculated the length to be a generous 20 meters from the DC adapter.
From what I have seen on a calculator (eg from www.calculator.net/voltage-drop-calculator.htm) if I was to use a 2.5mm cable at max 10amps (from a 150w adapter) there would be a drop of ~5.3v, leaving ~6.7v? Is this correct?
I was also looking at using the Techmar lighting system AC-DC adapter, cabling and maybe some of their lighting (but may run some cheaper non-techmar items from it also), but there is no mention in their guides on any length. They just advise total up the watts for the lights, pick the adapter higher than total, add the cabling and your good. Their cabling does look quite thick, but not sure what they are. Is this right?
What are my options?
Cheers,
Adam.