Question regarding Voltage Drop Calculations

[Ian1981]

i'm not going to mention multiple loads along the length of the circuit ( oh bugger, i just did ).

Behave yourself it's Saturday for gods sake!

 

[telectrix]

and if it's a ring don't forget to use r1/4

 

[westward10]

What if it is a ring final.

 

[telectrix]

where the "slow" rating button?

 

[Pete999]

So if the Live and Neutrals both share the same cross sectional area, then is the length of the circuit for calculating the circuit volt drop, the length of the cable run out to the last circuit load- so referring back to my example, 15m and not 30m?
What if the Live and Neutral conductors have different cross sectional areas- for example a 2.5mm live and 1.5mm neutral? Would you have to use two different mV/A/m values for the live and neutral conductors, and would this make the length of the circuit for the circuit volt drop calculation include the length of the Neutral conductor running back to the consumer unit?

Why would the L and N conductors be of differing sizes, see previous posts

 

[static zap]

Why would the L and N conductors be of differing sizes....

Impropper cable stripping proceedure !
(may need a micrometer to spot it )

don't forget -neutal needs to be thinner to equalize longer live paths ..Joking

 

[Des 56]

If this is a new circuit with reduced neutral conductor size,its cocked
If this is a new circuit design,stick to conventional methods

You could put down the pen, paper or calculator and get a voltmeter out