Design of emergency lighting circuit

[KentSparky]

Fourteen, 8w emergency lights and a Type B mcb won't do the job?

He stated the inrush current was in excess of 2000 amps which is significantly more than 14x8 so no a type B mcb will not do for that scenario

 

[KentSparky]

Fourteen, 8w emergency lights and a Type B mcb won't do the job?

He stated the inrush current was in excess of 2000 amps which is significantly more than 14x8 so no a type B mcb will not do for that scenario

Why not? 8.4A is less than 30A (5x6A)

because the inrush current if all the lights are turned in together will trip a type B mcb

 

[davesparks]

He stated the inrush current was in excess of 2000 amps which is significantly more than 14x8 so no a type B mcb will not do for that scenario

No he didn’t, he said 2000VA in the OP and 8.4A later on.

 

[westward10]

He said 2000VA.

Snap!

 

[davesparks]

He stated the inrush current was in excess of 2000 amps which is significantly more than 14x8 so no a type B mcb will not do for that scenario

because the inrush current if all the lights are turned in together will trip a type B mcb

He has stated that the inrush current is 8.4A, this is less than 30A (the 5x6A of a 6A type B mcb)

 

[KentSparky]

No he didn’t, he said 2000VA in the OP and 8.4A later on.

Ok David he quoted the figure of 2000 kva and 8 watts per fitting, 2000 kva being the inrush current which will definitely trip a type B mcb

 

[westward10]

He quoted 2000VA.

 

[davesparks]

Ok David he quoted the figure of 2000 kva and 8 watts per fitting, 2000 kva being the inrush current which will definitely trip a type B mcb

No, the OP clearly states 2000VA inrush, not 2000kVA.

 

[KentSparky]

No, the OP clearly states 2000VA inrush, not 2000kVA.

The inrush of the lights together is 2000VA

He has stated that the inrush current is 8.4A, this is less than 30A (the 5x6A of a 6A type B mcb)

David put your glasses on and read the post,it clearly states 8 watts per fitting and the inrush current is 2000. I think you need to learn the difference between inrush current and normal operating current.

 

[westward10]

He has read and understood it.

 

[davesparks]

The inrush of the lights together is 2000VA

David put your glasses on and read the post,it clearly states 8 watts per fitting and the inrush current is 2000. I think you need to learn the difference between inrush current and normal operating current.

Exactly, 2000VA not 2000A, this is quoted as the power in VA not the current in A.
2000VA is below 10A, later in the thread he clarified that the inrush current is 0.6A per fitting which gives 8.4A for the whole circuit.

 

[Toneyz]

Are these lights purely non-maintained fittings?