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High PFC issues

Former Community Member
Former Community Member

Hi all,

First post coming in…

I have a installation that we have been asked to Test, I conducted the usual tests for the Ze & Pfc.  I got 0.4 ohms & 11.7kA respectively.  Its a commercial block and the transformer is behind a locked door about 20m away, so probably reasonable to assume it’s accurate.  So here is my question given the absence of 15kA RCBO’s and the rarity 15kA MCB’s, what are my options?

Thanks in advance.

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  • 0

    If the installation is protected by BS88 or similar fuses, then they will give you protection against the higher fault currents.

    If it is a panel board supplying the DB, then the breakers in that should give enough protection for 16k + amps.

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  • 0

    If the installation is protected by BS88 or similar fuses, then they will give you protection against the higher fault currents.

    If it is a panel board supplying the DB, then the breakers in that should give enough protection for 16k + amps.

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