BS 7671 max surface temperature under fault condition ???

[Deleted member 26818]

This one will be more useful.
Says the triangle with the number in is the maximum surface temperature in the event of a fault:
https://www.tridonic.ae/ae/download/technical/Approval_marks_Symbols_en.pdf

 

[brett reader]

OK thats also helpful.
Osram not being very helpful and I have a midday meeting to discuss how to deal with this.

 

[Deleted member 26818]

OK thats also helpful.
Osram not being very helpful and I have a midday meeting to discuss how to deal with this.

I think you may have to obtain appropriately marked drivers.

 

[brett reader]

Ummm, Not what I want to hear but I must be compliant...

 

[Deleted member 26818]

Ummm, Not what I want to hear but I must be compliant...

Who supplied the drivers you already have?
Can you not return them as being unfit for use?

 

[brett reader]

They came with the osram lights, its a complete packages.

 

[Ian1981]

Ian, why the dumb ratings on the posts above? The replies seem pretty helpful to me.

Ask spin as he’s practically went through all my posts and give a dumb rating because he’s spit his dummy out.
He’s done that before to another member so enough said.
So I started to retaliate but thought better.
Petulant I know.
He’s now ignored so I apologise if I’ve come over a bit of an idiot.
He’s not worth it

 

[Deleted member 26818]

Ask spin as he’s practically went through all my posts and give a dumb rating because he’s spit his dummy out.
He’s done that before to another member so enough said.
So I started to retaliate but thought better.
Petulant I know.
He’s now ignored so I apologise if I’ve come over a bit of an idiot.
He’s not worth it

You reap what you sow.

 

[brett reader]

Maybe one last question.

Is it a legal requirement for my driver/transformer to have the "temperature-protected devices" logo (triangle with 110) on it or is it a recommendation?

 

[Deleted member 26818]

Maybe one last question.

Is it a legal requirement for my driver/transformer to have the "temperature-protected devices" logo (triangle with 110) on it or is it a recommendation?

As far as I am aware, no it’s not a legal requirement.
You can put the driver in a heat proof box.

 

[brett reader]

Thats what I thought, although as mentioned earlier I would like to locate the driver on an aluminium heat sink away from combustible material in free air.
Osram are now looking into the issue for me.
Thanks.

 

[Wilko]

My take is - the regulation requires less than 115C during a fault and since the manufacturer does not warrant this, you become responsible for achieving compliance. I would choose a driver that included the symbol, one less thing to worry about .

 

[Deleted member 26818]

Might be that he can’t return the drivers he’s got as the supplier is saying they are fit for purpose.

 

[brett reader]

The intended use is for the light panels, 10-off to be installed into a temporary building, they can all be controlled from one remote, dimmed and temperature (colour) changed. Finding a compliant driver to do this is really quite difficult.

 

[Deleted member 26818]

The intended use is for the light panels, 10-off to be installed into a temporary building, they can all be controlled from one remote, dimmed and temperature (colour) changed. Finding a compliant driver to do this is really quite difficult.

Have you looked at Tridonic?

 

[brett reader]

looking now.