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Lightning conductor for ametuer radio antenna mast - electrician says regular PVC sheated yellow green wire is ok from mast to earth rod

Former Community Member
Former Community Member
As per title I am getting a corner of my house setup as a radio shack and wanted to protect it appropriately.

The antenna is made of fibre glass but sits on an aluminium pole that brings the total height to 10m tall (only house in the area).


We have agreed to setup an earth rod below the antenna mast and earth it but the question is - will regular 35mm green/yellow sheated earth be good enough to provide earthing for antenna mast while being exposed to the elements? How long will it last?


Any thoughts on the electrical setup for the radio? We are planning to use the same earth rod and make a TT island for the power socket that feeds the radio unit (as main electrics is PME). The radio will be fed electric connection through an MCB by taking power from the main distribution box protected by a Type 1/2/3 SPD (I have 3 phase 100A supply from DNO) and we will use the earth rod for earth supply.


The radio unit will be powered by a seperate consumer unit which gets it's earth supply from the rod (I might also get a Type 1 SPD in the TT island consumer box).


The antenna and the TT island powering the radio will be linked by a 700A rated earth bar enclosed outside the property in an IP65 enclosure.


Appreciate any thoughts on my setup.
Am I being overkill and do not need a TT island for my radio setup? Will earthing the antenna be sufficient?
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  • Former Community Member
    0 Former Community Member
    John Peckham:

    I am beginning to think this is a wind up. 


    As for putting in your earth rod 1m from an earth mat of a 33kV sub to make a TT island!



    JP G8NUP


    No I am being really serious about my question, I am not an electrician and just getting expert opinion from folks like you all......... is this frowned upon? What is the exact concern please?


    If it is that close to the earth mat would the TT island and the PME be at the same earth potential which means my initiative is pointless?


    The map of the entire layout is attached, the blue box is what the substation building is and the green dotted box is the earth map (as per DNO map symbols). The building next to it is the property and the earth rod I plan to use to make the TT island will go just to the right of where the (A) marker is on the map on the property boundary.....


    For some reason the Earth Mat is under my property ! I have no idea how they managed to do that or if it is even accurate. What depth would it be at?


     


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  • Former Community Member
    0 Former Community Member
    John Peckham:

    I am beginning to think this is a wind up. 


    As for putting in your earth rod 1m from an earth mat of a 33kV sub to make a TT island!



    JP G8NUP


    No I am being really serious about my question, I am not an electrician and just getting expert opinion from folks like you all......... is this frowned upon? What is the exact concern please?


    If it is that close to the earth mat would the TT island and the PME be at the same earth potential which means my initiative is pointless?


    The map of the entire layout is attached, the blue box is what the substation building is and the green dotted box is the earth map (as per DNO map symbols). The building next to it is the property and the earth rod I plan to use to make the TT island will go just to the right of where the (A) marker is on the map on the property boundary.....


    For some reason the Earth Mat is under my property ! I have no idea how they managed to do that or if it is even accurate. What depth would it be at?


     


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