Kablo güzergâhı topraklama hattının yanında.

Turkish often leaves out the present-tense to be in simple statements.

So:

• Kablo güzergâhı topraklama hattının yanında.

naturally means:

• The cable route is next to the grounding line.

This kind of sentence is very common in Turkish, especially in descriptions, labels, notes, and technical writing. If you wanted a more explicit or formal version, you could also see something like yanındadır, but leaving it out is normal.

Kablo güzergâhı is a Turkish noun compound meaning cable route / cable path.

It is built like this:

• kablo = cable
• güzergâh = route, path
• güzergâhı = route + the compound ending -(s)I

In Turkish, when two nouns form a compound, the second noun often takes this ending:

• kablo güzergâhı = cable route
• su borusu = water pipe
• telefon numarası = telephone number

So the -ı here does not mean his/her/its route in the ordinary possessive sense. It is part of the standard noun-compound pattern.

Because the phrase yanında usually works with a noun in the genitive form.

The structure is:

• X-in yanında = next to X / at the side of X

So:

• topraklama hattı = grounding line
• topraklama hattının yanında = next to the grounding line

This is a very common pattern in Turkish:

• evin yanında = next to the house
• masanın yanında = next to the table
• kapının yanında = next to the door

So hattının is there because yanında is part of a construction meaning at its side / beside it.

Yanında means beside, next to, or at the side of.

It comes from:

• yan = side
• -ı = its
• -nda = in/on/at

So very literally, yanında is something like at its side.

That is why Turkish says:

• okulun yanında = next to the school
• arabanın yanında = next to the car

In your sentence, topraklama hattının yanında literally means at the side of the grounding line, which in natural English becomes next to the grounding line.

The word order is actually very natural for Turkish.

The sentence is organized as:

• Kablo güzergâhı = the thing being talked about
• topraklama hattının yanında = where it is

So the pattern is basically:

• [subject/topic] + [location]

That gives:

• Kablo güzergâhı topraklama hattının yanında.
• The cable route is next to the grounding line.

English also does something similar, but Turkish is generally more flexible with word order. Still, this order is especially normal in technical descriptions because it introduces the item first and then tells you its position.

Turkish does not have articles like the and a/an in the same way English does.

So:

• kablo güzergâhı can mean the cable route or a cable route
• topraklama hattı can mean the grounding line or a grounding line

The exact interpretation depends on context.

In technical writing, labels, and descriptions, English often uses the when translating because the item is understood as specific in context. That is why this sentence is usually rendered as The cable route is next to the grounding line.

Because the base expression is not just hat. It is the compound:

• topraklama hattı = grounding line

Then that whole expression goes into the genitive form:

• topraklama hattının = of the grounding line

So the form develops in stages:

• hat = line
• hattı = line in the compound topraklama hattı
• hattının = genitive form used before yanında

Also, Turkish often uses a buffer n before certain endings after possessive or compound forms, which is why you get -nın here.

Topraklama means grounding or earthing, especially in an electrical or technical context.

It comes from:

• toprak = soil, earth, ground
• topraklamak = to ground, to earth
• topraklama = grounding / earthing

So:

• topraklama hattı = grounding line, grounding wire, earth line

Depending on the context, English might translate it differently, but the Turkish word itself is standard technical vocabulary.

The â in güzergâh is part of the standard spelling of this word.

In modern Turkish, a circumflex can indicate things like:

• a somewhat longer vowel
• sometimes a historical spelling distinction
• sometimes a pronunciation effect on nearby consonants

In this particular word, many speakers pronounce it quite naturally without making a dramatic difference, but the standard spelling keeps the â.

So for a learner, the main thing is:

• learn the spelling as güzergâh
• recognize güzergâhı as the same word with an ending added

Yes. It sounds very natural in technical, instructional, schematic, or descriptive contexts.

Why?

• it is compact
• it omits the present-tense to be
• it uses precise noun compounds
• it gives location clearly and efficiently

In everyday conversation, someone might also say a fuller sentence, but in technical Turkish this concise style is extremely common and natural.