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Surge protection - monitoring effectiveness.

whjohnson
Ok, so folk are all going mad and fitting SPD consumer units et al.

BUT - How effective will they actually be?

In other words, what steps are in place to monitor and record the effectiveness of these devices?

So the flag turns from green to red over time, yet the consumer unit continues to deliver regardless, and the customer notices nothing changing, in the same way that they never test RCDs by using the test button.

How will we ever know whether or not these devices are actually worth the money? Or is it a case of another successful snake oil sale?

How long will it be before a future EICR flags up the fact that the SPD has 'died'.?
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    Sounds like loss of data server to a business to me.

    Anyway, I do have to ask why an externally originated event such as a 'surge' has to be mitigated by the end user rather than the generator?

    It seems that it is yet again a risk transfer from the DNO's insurance lawyers to that of the small man at the end of the chain,i.e. us.

    "Make em fit SPDs and let their insurers pay out instead of ours" seems to be the outcome of a successful lobbying exercise by the power companies to the wiring regs committee.


    How do these things mitigate a surge when an isolation transformer is in cct? Surely the rise in energy in the primary is replicated to a degree in the secondary depending upon the turns ration? If this is the case, then surely there is still risk of damage to any electronics downstream?

    How about the effects upon a step-up transfomer too?
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  • 0
    Sounds like loss of data server to a business to me.

    Anyway, I do have to ask why an externally originated event such as a 'surge' has to be mitigated by the end user rather than the generator?

    It seems that it is yet again a risk transfer from the DNO's insurance lawyers to that of the small man at the end of the chain,i.e. us.

    "Make em fit SPDs and let their insurers pay out instead of ours" seems to be the outcome of a successful lobbying exercise by the power companies to the wiring regs committee.


    How do these things mitigate a surge when an isolation transformer is in cct? Surely the rise in energy in the primary is replicated to a degree in the secondary depending upon the turns ration? If this is the case, then surely there is still risk of damage to any electronics downstream?

    How about the effects upon a step-up transfomer too?
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