blown bulb tripped RCD

[rodneyja59]

Should I be concerned, as a kitchen bulb (when it blew) tripped the RCD lighting circult.

 

[breezer]

no

 

[marquee]

No you shouldn't be concerned.
When a lamp blows there is a slight surge,the RCD has detected this and is doing it's job.

Wether lights should be on an RCD protected circuit is another matter.

 

[chappers]

suspect RCD should read MCB

 

[Damocles]

You should probably not be concerned. This is just normal poor circuit design which fails to distinguish between normal operating conditions (bulb going), and a real fault. The danger is that should there be a real problem with the circuit you just wouldn't notice.

 

[ban-all-sheds]

When a lamp blows there is a slight surge,the RCD has detected this and is doing it's job.

Absolutely not - it is not an RCD's job to trip when it detects a slight surge. It's job is to trip when it detects an earth fault.

 

[ban-all-sheds]

This is just normal poor circuit design which fails to distinguish between normal operating conditions (bulb going), and a real fault.

So what would you consider good design?

 

[breezer]

thinking about that, although its normal for a lamp to go, when it does, it is a fault, the lamp no longer works so there for its faulty, hence fault.

also this bulb, is it a tulip or daffodil?

 

[fubar]

thinking about that, although its normal for a lamp to go, when it does, it is a fault, the lamp no longer works so there for its faulty, hence fault.

Not sure I agree with this. When the lamp goes, it is a lamp fault not an electrical fault. It is a faulty lamp. Hence not faulty electrics.

Having said that, as the lamp fails the current can surge in the filament as its resistance falls. Clearly this would count as an electrical fault.

--
Michael