EICR Coding for hob wiring

[davesparks]

I assume you meant hob?

Rating plate states 5.7KW

5700/230 = 24.78A

even working at a more realistic:

5700/240 = 23.75A

As I suspected you haven't calculated the load correctly, you should be taking the first 10A of FLC plus 30% of the remainder.

Which gives the load as 14.1A rather than your 23.8A which makes it a small overload as per the regulation posted above, the 23.8A is not a small overload as it is nearly a 100% overload.
Now you just have to decide whether that is a sustained small overload or a short duration small overload.
If it is sustained I would say it is potentially dangerous.
If it is short duration then no problem.

Are you sure you should be carrying out EICRs if you don't know how to apply basic diversity calculations?

 

[Charlie_]

I assume you meant hob?

Rating plate states 5.7KW

5700/230 = 24.78A

even working at a more realistic:

5700/240 = 23.75A

At 240v the current would be greater than it would at 230v

 

[Charlie_]

Diversity?

They won Britain's Got Talent a few years ago

 

[tigerpaul]

At 240v the current would be greater than it would at 230v

No the current is greater at 230 than at 240

 

[SJD]

No the current is greater at 230 than at 240

Umm, the load is fixed, and it will be spec'd to be 5.7kW at either 240V or 230V.
Often the load is spec'd at 240V if the manufacturer wants it to sound bigger.

 

[davesparks]

No the current is greater at 230 than at 240

Has someone been messing around with the laws of physics again?

I do so hate it when they do that.

 

[Knobhead]

I assume you meant hob?

Rating plate states 5.7KW

5700/230 = 24.78A

even working at a more realistic:

5700/240 = 23.75A

Time you looked at Ohms law again, epic fail.

 

[micknew]

Ohms law proves that with a resistive load the current rises with an increase of voltage.

 

[Knobhead]

Umm, the load is fixed, and it will be spec'd to be 5.7kW at either 240V or 230V.
Often the load is spec'd at 240V if the manufacturer wants it to sound bigger.

The resistance is fixed not the load.

 

[Silly Sausage]

Has someone been messing around with the laws of physics again?

I do so hate it when they do that.

It's a constant power consuming load, the laws of physics are quite happy :smilielol5:

 

[Silly Sausage]

Ohms law proves that with a resistive load the current rises with an increase of voltage.

Aye, it does.
But what does the spec say... xyz kW @ abc V!

 

[Charlie_]

Knowledge is power, a little is dangerous

 

[Knobhead]

Are you sure you should be carrying out EICRs if you don't know how to apply basic diversity calculations?

http://www.electriciansforums.co.uk...859-can-someone-check-my-diversity-calcs.html