CCC Telecom

The regulations are very clear, and the issue of creating a potential between 2 earths is very clear, do NOT do it.
There is Only one earth ! Repeat after me ! There is Only one earth
Lightening Protection System regulations and Solar Panel Grounding Regulations are completely different things, solar panels are not grounded for lightening protection and a 6mm square area wire is not up to the job of lightening protection which requires very large area down conductors 50mm square = 8mm diameter (here is where you all get confused, you see the 8mm and think area, some of you then put 10mm area cables in for lightning protection = WRONG the minimum area is 50 square mm and 2 down conductors for lightning protection, AGAIN, solar panel earthing is NOT for lightening protection.  
So lets stop pretending that a 6mm square area earth wire is going to afford ANY lightening protection, also lets not confuse surge protection MCBs (surge induced by lightening) with lightening protection systems either, surge MCBs clean the +VE and -VE power wires for DC, clean the LIVE wire for AC, the Neutral wire does not normally need to be cleaned for AC because we are TNC-S and Neutral is already earthed, unless you live on a farm with sub-db boards far away from the eskom point of control, you probably will never need to have 2-pole (1+N) AC surge protection, AGAIN Surge MCBs have nothing to do with the reason that solar panel chassis earth wiring is required it is a different 3rd subject area.
SANS NRS 97-2-1 regulations clearly specify when Earth spikes should be used and clearly specify that the earth spike should be connected to the Eskom Earth.
Gerrie is 100% right that NRS97-2-1 is the place to look.  B.3.2.2 specifies "not required" but "preferred" for embedded generators, this is expanded upon per system connection type in the connection diagrams at the end, it also specifies that if you use an earth electrode that 6mm is likely not enough for the connection to eskom, B.1.5.2 states that it must be at least HALF the area of the supply wires which are usually 16mm for domestic supply, so that means the COMPULSORY interconnect between the Earth Spike and Eskom is usually 10mm for 60A connections but may be 16mm for 80A connections  

The regulations are very clear, and the issue of creating a potential between 2 earths is very clear, do NOT do it.
There is Only one earth ! Repeat after me ! There is Only one earth
Lightening Protection System regulations and Solar Panel Grounding Regulations are completely different things, solar panels are not grounded for lightening protection and a 6mm square area wire is not up to the job of lightening protection which requires very large area down conductors 50mm square = 8mm diameter (here is where you all get confused, you see the 8mm and think area, some of you then put 10mm area cables in for lightning protection = WRONG the minimum area is 50 square mm and 2 down conductors for lightning protection, AGAIN, solar panel earthing is NOT for lightening protection.  
So lets stop pretending that a 6mm square area earth wire is going to afford ANY lightening protection, also lets not confuse surge protection MCBs (surge induced by lightening) with lightening protection systems either, surge MCBs clean the +VE and -VE power wires for DC, clean the LIVE wire for AC, the Neutral wire does not normally need to be cleaned for AC because we are TNC-S and Neutral is already earthed, unless you live on a farm with sub-db boards far away from the eskom point of control, you probably will never need to have 2-pole (1+N) AC surge protection, AGAIN Surge MCBs have nothing to do with the reason that solar panel chassis earth wiring is required it is a different 3rd subject area.
SANS NRS 97-2-1 regulations clearly specify when Earth spikes should be used and clearly specify that the earth spike should be connected to the Eskom Earth.
Gerrie is 100% right that NRS97-2-1 is the place to look.  B.3.2.2 specifies "not required" but "preferred" for embedded generators, this is expanded upon per system connection type in the connection diagrams at the end, it also specifies that if you use an earth electrode that 6mm is likely not enough for the connection to eskom, B.1.5.2 states that it must be at least HALF the area of the supply wires which are usually 16mm for domestic supply, so that means the COMPULSORY interconnect between the Earth Spike and Eskom is usually 10mm for 60A connections but may be 16mm for 80A connections  

The regulations are very clear, and the issue of creating a potential between 2 earths is very clear, do NOT do it.
There is Only one earth ! Repeat after me ! There is Only one earth
Lightening Protection System regulations and Solar Panel Grounding Regulations are completely different things, solar panels are not grounded for lightening protection and a 6mm square area wire is not up to the job of lightening protection which requires very large area down conductors 50mm square = 8mm diameter (here is where you all get confused, you see the 8mm and think area, some of you then put 10mm area cables in for lightning protection = WRONG the minimum area is 50 square mm and 2 down conductors for lightning protection, AGAIN, solar panel earthing is NOT for lightening protection.  
So lets stop pretending that a 6mm square area earth wire is going to afford ANY lightening protection, also lets not confuse surge protection MCBs (surge induced by lightening) with lightening protection systems either, surge MCBs clean the +VE and -VE power wires for DC, clean the LIVE wire for AC, the Neutral wire does not normally need to be cleaned for AC because we are TNC-S and Neutral is already earthed, unless you live on a farm with sub-db boards far away from the eskom point of control, you probably will never need to have 2-pole (1+N) AC surge protection, AGAIN Surge MCBs have nothing to do with the reason that solar panel chassis earth wiring is required it is a different 3rd subject area.
SANS NRS 97-2-1 regulations clearly specify when Earth spikes should be used and clearly specify that the earth spike should be connected to the Eskom Earth.
Gerrie is 100% right that NRS97-2-1 is the place to look.  B.3.2.2 specifies "not required" but "preferred" for embedded generators, this is expanded upon per system connection type in the connection diagrams at the end, it also specifies that if you use an earth electrode that 6mm is likely not enough for the connection to eskom, B.1.5.2 states that it must be at least HALF the area of the supply wires which are usually 16mm for domestic supply, so that means the COMPULSORY interconnect between the Earth Spike and Eskom is usually 10mm for 60A connections but may be 16mm for 80A connections  

The regulations are very clear, and the issue of creating a potential between 2 earths is very clear, do NOT do it.
There is Only one earth ! Repeat after me ! There is Only one earth
Lightening Protection System regulations and Solar Panel Grounding Regulations are completely different things, solar panels are not grounded for lightening protection and a 6mm square area wire is not up to the job of lightening protection which requires very large area down conductors 50mm square = 8mm diameter (here is where you all get confused, you see the 8mm and think area, some of you then put 10mm area cables in for lightning protection = WRONG the minimum area is 50 square mm and 2 down conductors for lightning protection, AGAIN, solar panel earthing is NOT for lightening protection.  
So lets stop pretending that a 6mm square area earth wire is going to afford ANY lightening protection, also lets not confuse surge protection MCBs (surge induced by lightening) with lightening protection systems either, surge MCBs clean the +VE and -VE power wires for DC, clean the LIVE wire for AC, the Neutral wire does not normally need to be cleaned for AC because we are TNC-S and Neutral is already earthed, unless you live on a farm with sub-db boards far away from the eskom point of control, you probably will never need to have 2-pole (1+N) AC surge protection, AGAIN Surge MCBs have nothing to do with the reason that solar panel chassis earth wiring is required it is a different 3rd subject area.
SANS NRS 97-2-1 regulations clearly specify when Earth spikes should be used and clearly specify that the earth spike should be connected to the Eskom Earth.
Gerrie is 100% right that NRS97-2-1 is the place to look.  B.3.2.2 specifies "not required" but "preferred" for embedded generators, this is expanded upon per system connection type in the connection diagrams at the end, it also specifies that if you use an earth electrode that 6mm is likely not enough for the connection to eskom, B.1.5.2 states that it must be at least HALF the area of the supply wires which are usually 16mm for domestic supply, so that means the COMPULSORY interconnect between the Earth Spike and Eskom is usually 10mm for 60A connections but may be 16mm for 80A connections  

NRS 097-2-1: 2017 Table B.3.
Earthing comments on the document mentions “earth electrode desired” 
In my opinion it is important to have the earth spike installed especially when it comes to lightning protection. Having that earth spike with surge protection devices might save you a couple of thousand of💲when the lightning choose your installation.

To answer my own question - I have setpoint at 200W and no grid feedback enabled in ESS - no issues with prepaid meter going into tamper mode - waiting for my prepaid meter to be replaced by municipality with grid tied meter to start playing with more settings.... covoid-19 first world problems 

With a E112 current sensor in place (install exactly like Hermans image above)  how quickly is the system able to react when the /grid side loads are high and Victron inverter (Quattro in my case) is supplying part  or most of the load trying to keep Eskom at 0 kwh (battries full and AC out loads not high), and grid side loads suddenly drop. 
My specific concern is the prepaid meter seeing a backfeed and tripping out. I have tried to see what my specific meter would do in this situation but little info avail - is a Itron ACE 9000 ISP.
I had thought of putting the setpoint for Eskom at about 300W to give a bit of a buffer, but not sure that will help if the grid side load drops from say 2.5 kw to 0) or am I worrying about nothing?
To add detail I am wanting to put Oven, washing machine, tumble dryer  and Heat pump on Grid side as they all big users - rest of house on down side of inverter. 
Tim 

The OverFrequency 1 bar is specified above and in the manual as a default Hysteresis 1.45 when it is actually a default of 1.95, do not change this parameter, it is a "copyedit error/typo" in the manual and is not intended to be changed from the default value

No saying its right though, it does work for me though.
Read;
N/###########/settings/0/Settings/CGwacs/BatteryLife/SocLimit
Write
W/###########/settings/0/Settings/CGwacs/BatteryLife/SocLimit
Payload i.e. 20%
{ "value": 20 }

When combined with a Victron inverter, you need only one contactor. The NRS097 requirement is that you must have two relays in series and that a single failure must not break the system (ie there must be some redundancy). The Multi already has one such relay and LOM-detection (loss of mains). Adding the Ziehl with just one relay is sufficient to tick the second box.

Normally this is not a problem as long as you do not use the standard red, white, blue, black colors of 400VAC for the low voltage circuits, Rather use different colors like example orange, pink, grey, purple etc. for low voltages and fit wire numbers stating 24VDC. Where the low voltage wiring enter the 400VAC board, put the dc wires inside pvc slotted trunking to keep dc separate from ac and where dc wires exit the slotted trunking to the ATS wrap the exposed bits that connect onto ATS with those pvc coil wraps to protect it from damage or touching 400VAC. That should normally pass a inspection unless the company has their own higher standards. Hope it makes sense. 
 
This should not be a problem as they are divided.

There's a 3 phase hybrid from Goodwe, and the Solis one has been announced. They work from HV batteries though which is potentially a problem (at least R80k for the battery bank).
Other option is to parallel 3 sunsynks (either 3.6kw or 5kw). I'm actually considering using 2 X 5kw sunsynks at my place and leaving the 3rd phase empty.