Elektroinstalacija prolazi oko obračunskog mjernog mjesta.

In Croatian, elektroinstalacija is often used as a singular collective/technical noun meaning the electrical installation, the wiring, or the electrical system of a building or area.

So here it is treated as one system, which is why the verb is also singular:

• elektroinstalacija = nominative singular
• prolazi = it passes / it runs

Prolazi is the 3rd person singular present tense of prolaziti.

In this kind of technical sentence, it usually means:

• passes
• runs
• goes
• extends

So elektroinstalacija prolazi... is not necessarily about motion happening right now. In technical descriptions, present tense often states a general fact:

• The electrical installation runs around...

Because the subject is singular:

• elektroinstalacija = singular
• therefore prolazi = singular

If the subject were plural, you would use prolaze:

• Elektroinstalacije prolaze... = The electrical installations run/pass...

Here oko means around.

That is its spatial meaning in this sentence:

• oko kuće = around the house
• oko zgrade = around the building
• oko obračunskog mjernog mjesta = around the billing metering point

Be careful: oko can also mean about/regarding in other contexts, but not here.

Because the preposition oko normally requires the genitive case when it means around.

The base form is:

• obračunsko mjerno mjesto = nominative singular

After oko, it changes to genitive singular:

• oko obračunskog mjernog mjesta

All the words in that noun phrase change to match the genitive singular:

• obračunsko → obračunskog
• mjerno → mjernog
• mjesto → mjesta

The dictionary/base form is:

• obračunsko mjerno mjesto

This is a technical expression. Word by word:

• obračunsko = billing/accounting/for calculation
• mjerno = measuring / metering
• mjesto = place / point / location

In technical English, this is best understood as something like:

• billing metering point
• metering point used for billing

Because Croatian often builds technical terms by stacking adjectives before a noun.

Here:

• mjerno mjesto = metering point / measuring point
• obračunsko mjerno mjesto = a metering point used for billing/settlement purposes

So obračunsko narrows the meaning of mjerno mjesto. It is not just any measuring point, but a specific type used for billing or calculation.

In technical phrases, adjective order is often somewhat fixed by usage.

Here mjerno mjesto acts like a unit: metering point. Then obračunsko specifies what kind of metering point it is. So:

• mjerno mjesto = the core term
• obračunsko mjerno mjesto = a subtype of that term

That is why the given order sounds more natural and technical.

Usually oko suggests around rather than just near.

So this sentence implies that the installation runs around the metering point, not merely next to it.

If you wanted near / past / by, Croatian would more likely use something like:

• pokraj
• kraj
• uz (depending on the exact meaning)

So oko is important here.

Yes. This is a normal, neutral order for a technical statement:

• Elektroinstalacija = subject
• prolazi = verb
• oko obračunskog mjernog mjesta = prepositional phrase

Croatian word order is flexible, so other orders are possible for emphasis, but this version is the most straightforward and natural in a formal/technical context.

Possibly, but elektroinstalacija is a very common technical term and often sounds more standard in engineering, construction, or regulatory language.

Compare:

• elektroinstalacija = technical, compact, very common in professional contexts
• električna instalacija = understandable, but often less idiomatic as a fixed technical term

So in a sentence like this, elektroinstalacija is a very natural choice.

It is most likely describing a layout or a general fact, not an action happening at this moment.

Croatian present tense is often used this way in technical writing:

• to describe where something is
• how something is arranged
• how a system runs

So prolazi here is best understood as:

• runs
• is routed
• passes

rather than is currently passing.