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Voltage drop

How do we calculate voltage drop on a ring final sockets only, Given the length of the circuit is 40 meters the cable is 2.5mm so therefore the amp per meter is 18, the mcb is 32 so is it 40 x 18 x 32 / 1000 = 23.04 but thats more than 5% = 11.5. Do we not use the mcb for socket outlets as we...
- hogan
- Thread
- Apr 4, 2009
- aus cable circuit length maximum table voltage voltage drop volts
- Replies: 3
- Forum: Australia
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length of circuit calculation - head scratching stuff!

Hi all, How do I work out the length of a circuit? I have these figures R1+R2 = 0.40 The circuit is wired in 2.5mm/1.5mm T&E I take it I need to know the resistance of the T&E (where do I find this?) Could someone give me the formula or point me in the right direction Thank you.
- sivoodoo
- Thread
- Feb 12, 2009
- calculation circuit figures length someone stuff thank
- Replies: 10
- Forum: Periodic Inspection Reporting & Certification
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12v blue led strip

hi thier i want to make my own blue 12v led strip like this i want to be able to use it in my car and on the strip i would like about 36 led's i had a look on ebay for the leds and i have come across these PACK OF 50 ULTRA-BRIGHT 3mm BLUE LEDs 5000 MCD on eBay, also LEDs, Components Supplies...
- De Icea
- Thread
- Jan 12, 2009
- 12v led led strip length lengths right strip these
- Replies: 1
- Forum: Electrical Wiring, Theories and Regulations
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Meter tail length

Hi All, i'm sure this has been discussed before, but what would you suggest the longest length of meter tails should be. I know I should ask the distributor, but I am looking for a general view. Thanks in advance Weston
- weston
- Thread
- Nov 12, 2008
- length meter meter tail
- Replies: 7
- Forum: Electrical Wiring, Theories and Regulations

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