Windows 10: Desktop Power Supply Caused Circuit Breaker Tripped

My desktop power supply exploded caused the house circuit breaker tripped when I was surfing the web.
The power cord was connected to an extension together with my router, monitor and printer.
When I reset the circuit breaker and power on the desktop again, another explode happen and CB tripped.
I can see some of the components in the power supply module "burnt" and I have to replace it.
I would like to check what could be the causes? is it power supply module itself, or the extension plug or others etc.
I am worried after replaced the power supply module, it will happen again.
Why the fuses in the extension plug and the Power Cord connected to the Desktop Power Supply Module didn't "blow" in the first place.

:)

 

How do I stop tripping the circuit breaker.

If I read this right, the tripping circuit breaker is 15 amps (1800 watts). That means a 15 amp breaker needs maybe 22 to 30 amps for 30 seconds to trip. Or it needs 20 amps for 100 seconds to 6 minutes to trip. Conventional breakers do not trip due to spikes such as a power supply power on. Minor current increases can only trip a breaker (as described) if the circuit is already dangerously overloaded.

How does an excessive ampere or two trip a breaker? Existing current must be well above 15 amps. I did not see where the breaker was defined by type or part numbers - essential facts. Is it a conventional breaker? To have your symptoms implies a tripping breaker is not. What exactly is the breaker (which means hard facts such as part number)? Currently, your conclusions (including a suspected defective power strip) imply a defect elsewhere. Did not suggest a defective breaker. Did imply the breaker is not being tripped by excessive current.

If a power strip is defective, then (for example) it also trips GFCIs in the kitchen or bathroom when some load (ie a few 100 watt light bulbs) are temporarily power cycled through that power strip and GFCI.

 

How do I stop tripping the circuit breaker.

I do have an ancient blowdryer somewhere but no power tools at all, also it's not when I turn the PSU power switch on/off it's when I power on the system, if I have left it just in standby and turn on the system it will trip the breaker and also if I don't wait around 10 seconds after plugging it in before turning it on it will also trip it.

 

How do I stop tripping the circuit breaker.

Fair enough. I bow to your superior knowledge on this topic. *Respect :respect: