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Installation (domestic) without Service Head

Martyn
Canvassing opinion...


We have an Installation without its own service head fed from a 50s/60s ryefied/MSDB style unit.


The Ryefield/MSDB is inturn fed from a 200A Tp&n supply head belonging to DNO. No visible issues other than supply to MSDB being unsheathed.


The MSDB has no key or tool to open, has direct access to 70mm lugged cables with door closed. 


With door open for fuse access there are no barriers, all removed and lost. 


Service cables are single insulated, tails to meters insulated & sheathed direct in to this unit. 


EICR for one of the supplied flats, does it pass or fail?
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  • 0
    Thanks for the replies.


    The metering is located with the BNO MSDB, which is acting as the head might, ie the only form of isolation for the flats meter operator. 


    This is essentially a public access cupboard. 


    The EICR asks for condition of in relation to the installation-


    1.1 Service cable (in a BNO feed to head?) C2


    Maybe this could be in additional inspections as the actual DNO service cable is fine.


    1.2 Service head (absent, could be said to be MSDB?) C1


    1.3 Earthing arrangement (Visibly TN-S pme by default) OK


    1.4 Meter tails (From MSDB (head) to Sw fuse unit) C2


    1.5 Metering equipment (Ok)


    1.6 Isolator (where present) (switch fuse unit for SWA service to flat direct in to CU) C2


    Given all these data points are requested   and the only one that may be totally absent is the isolator (though it is present here) 


    The DNO side of things is all fine... just old but thats not a failure. 


    The BNO is poor however individual flats share the responsibility here and are responsible for their own supplies from the communal cupboard.


    There are no Un metered supplies out of the MSDB but that in itself is un metered.


    Cheers

Reply
  • 0
    Thanks for the replies.


    The metering is located with the BNO MSDB, which is acting as the head might, ie the only form of isolation for the flats meter operator. 


    This is essentially a public access cupboard. 


    The EICR asks for condition of in relation to the installation-


    1.1 Service cable (in a BNO feed to head?) C2


    Maybe this could be in additional inspections as the actual DNO service cable is fine.


    1.2 Service head (absent, could be said to be MSDB?) C1


    1.3 Earthing arrangement (Visibly TN-S pme by default) OK


    1.4 Meter tails (From MSDB (head) to Sw fuse unit) C2


    1.5 Metering equipment (Ok)


    1.6 Isolator (where present) (switch fuse unit for SWA service to flat direct in to CU) C2


    Given all these data points are requested   and the only one that may be totally absent is the isolator (though it is present here) 


    The DNO side of things is all fine... just old but thats not a failure. 


    The BNO is poor however individual flats share the responsibility here and are responsible for their own supplies from the communal cupboard.


    There are no Un metered supplies out of the MSDB but that in itself is un metered.


    Cheers

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