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Post Closed as "Not suitable for this site" by brhans, Andy aka, pipe
Fixed typo; removed unnecessary thanks (show thanks by voting on and accepting answers)
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JYelton
JYelton
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I have a breaker that controls current powering a set of seven desktop computers and monitors. Sometimes it can take me up to twenty attempts to bring the breaker up. Eventually it stays up and the system is functioning well and never ever trips the RCCB.

My first reaction was that there was some sort of an electrical issue, but I have been convinced that this was due to an 'inrush current' caused by PSUs within the PCs. I have also been pointed at the article that suggested that this current can be up to 30 times that of the curentcurrent drawn during normal operation. The implication is that my attempts to bring up the breaker "charge up" some internal circuitry and eventually the 'inrush current' comes in line with what the RCCB is designed to handle. The other implication is that the only way to work around the problem is to use high-quality PSUs that don't suffer from this issue.

Questions:

  1. Why does the RCCB eventually stay up?
  2. Is there not a way to design the electrical layout that would avoid this situation, apart from adding more RCCBs or adding a single one that can handle 30x the current?

Thank you!

I have a breaker that controls current powering a set of seven desktop computers and monitors. Sometimes it can take me up to twenty attempts to bring the breaker up. Eventually it stays up and the system is functioning well and never ever trips the RCCB.

My first reaction was that there was some sort of an electrical issue, but I have been convinced that this was due to an 'inrush current' caused by PSUs within the PCs. I have also been pointed at the article that suggested that this current can be up to 30 times that of the curent drawn during normal operation. The implication is that my attempts to bring up the breaker "charge up" some internal circuitry and eventually the 'inrush current' comes in line with what the RCCB is designed to handle. The other implication is that the only way to work around the problem is to use high-quality PSUs that don't suffer from this issue.

Questions:

  1. Why does the RCCB eventually stay up?
  2. Is there not a way to design the electrical layout that would avoid this situation, apart from adding more RCCBs or adding a single one that can handle 30x the current?

Thank you!

I have a breaker that controls current powering a set of seven desktop computers and monitors. Sometimes it can take me up to twenty attempts to bring the breaker up. Eventually it stays up and the system is functioning well and never ever trips the RCCB.

My first reaction was that there was some sort of an electrical issue, but I have been convinced that this was due to an 'inrush current' caused by PSUs within the PCs. I have also been pointed at the article that suggested that this current can be up to 30 times that of the current drawn during normal operation. The implication is that my attempts to bring up the breaker "charge up" some internal circuitry and eventually the 'inrush current' comes in line with what the RCCB is designed to handle. The other implication is that the only way to work around the problem is to use high-quality PSUs that don't suffer from this issue.

Questions:

  1. Why does the RCCB eventually stay up?
  2. Is there not a way to design the electrical layout that would avoid this situation, apart from adding more RCCBs or adding a single one that can handle 30x the current?
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Tony Sepia
Tony Sepia
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Is it normal to keep turning on RCCB multiple times until it stays up?

I have a breaker that controls current powering a set of seven desktop computers and monitors. Sometimes it can take me up to twenty attempts to bring the breaker up. Eventually it stays up and the system is functioning well and never ever trips the RCCB.

My first reaction was that there was some sort of an electrical issue, but I have been convinced that this was due to an 'inrush current' caused by PSUs within the PCs. I have also been pointed at the article that suggested that this current can be up to 30 times that of the curent drawn during normal operation. The implication is that my attempts to bring up the breaker "charge up" some internal circuitry and eventually the 'inrush current' comes in line with what the RCCB is designed to handle. The other implication is that the only way to work around the problem is to use high-quality PSUs that don't suffer from this issue.

Questions:

  1. Why does the RCCB eventually stay up?
  2. Is there not a way to design the electrical layout that would avoid this situation, apart from adding more RCCBs or adding a single one that can handle 30x the current?

Thank you!