Foundation earth electrode (frost skirt) executed incorrectly

Check the attached files. I can't open them (with the phone).

These are PDF files. A phone should actually be able to handle that. I have now attached them again as image files.

Regards

EDIT: Attachments had to be removed Sorry

If I interpret this correctly, my grounding is useless.

It is grossly non-compliant in several respects but not completely useless. Whenever you think you know every kind of foolish "We've always done it this way" incompetence, a new variant appears.

If it can be proven that a stainless steel wire made of V4A with a diameter of 10 mm was laid, at least the missing ring closure in the soil can be retrofitted. Since 2007, material in contact with the soil must not be hot-dip galvanized, and V2A is not sufficient either.

I assume, in favor of the construction company, that the ring grounding wire only fails to form a closed loop because the material ran out. Thus, it is a type A surface electrode. As long as the pit is open, the ring can still be closed later and upgraded to a type B grounding electrode. Of course, connectors in the soil must also be permanently corrosion-resistant and then sealed against soil ingress with special tape.

According to standards, the continuity resistance of all connections must be measured; if the connection lug passes through uncut, this must formally be done at the two new connectors.

The missing functional equipotential bonding conductor and the additional connection to the ring grounding electrode required by the standard beyond the connection lug can only be retrofitted at disproportionate high costs by demolition.

With architects, construction managers, construction companies, but also electricians to whom not even the superseded DIN 18014:2007-09 has become known, even atheists like me are left with only one biblical quotation: Lord forgive them, for they know not what they do!

Electricians with and without supernatural abilities, for whom a glance at a connection lug is enough to bless grounding systems never seen before in meter registration without batting an eye, can always be found.

I assume in favor of the construction company that the ring earth conductor does not form a closed ring only because the material ran out

I would agree with that. We should definitely still be able to correct the ring earth conductor, even if the assembly is already backfilled.

If it can be proven that a stainless steel wire made of V4A with a diameter of 10 mm was laid, the missing ring closure in the ground can at least still be retrofitted

It should be round steel with Ø10mm+, but how do I recognize if it is V4A?

The missing equipotential bonding conductor and the additional connection to the ring earth conductor required by the standard except at the connection tab can only be improved by demolition at disproportionate costs.

Is a standard-compliant ring earth conductor type B sufficient, or do I definitely need the equipotential bonding conductor connected to the reinforcement? That would be disproportionate and would lead to the demolition of the building.

Electricians with and without supernatural abilities, for whom a glance at a connection tab is enough to bless grounding systems never seen before in the meter registration without batting an eye, are always found.

Surely they exist, but do you really feel safe with your family then?

How would such a retrofit look in an old building where something like this is only partially present?

Certainly they exist, but do you really feel safe with your family then?

*laugh*

Tens of thousands of buildings now have to be demolished...

It should be round steel with Ø10mm+, but how do I recognize if it is V4A?

You will hardly be able to perform a so-called spot test yourself, so it probably remains to demand proof from the construction company.

Is a standard-compliant ring earth electrode Type B sufficient, or do I definitely need the FPAL with connection to the reinforcement? That would be disproportionate and would lead to the demolition of the building.

Decisive is your tolerance for suffering. You would be the first builder to insist on your legal claim to 100% compliant execution after concreting, with all consequences such as legal disputes and later move-in delays.

In the compromise, you move within the following field of tension:

[*]Earth electrodes should have as low an impedance as possible.
[*]Type B electrodes distribute transient lightning currents more widely and with less step voltage than stretched surface electrodes of Type A.
[*]According to the lightning protection standards series, it is already considered sufficient if ring electrodes are 80% continuous and 20% closed inside. With a ring closure via an FPAL, the 80% according to your plan sketch would be met.

[*]For antenna grounding, round or strip steel as a two-part radial or single-part surface electrode with 5 m length at at least 0.5 m depth is sufficient, while ring electrodes for new buildings must be installed according to the current standard at at least 0.8 m frost depth.

*laugh*

As an affected builder, you would be crying.