Så snart vaktskiftet begynner, tar jeg på meg hørselsvernet.

Så snart means as soon as.

It introduces a time clause, just like English as soon as:

• Så snart vaktskiftet begynner ... = As soon as the shift starts ...

A few related expressions are:

• når = when
• idet = the moment / just as
• med en gang = right away / immediately

In this sentence, så snart emphasizes that the second action happens immediately after the first one.

Vaktskiftet is a compound noun:

• vakt = guard / watch / shift / duty
• skift = shift / change
• vaktskift = shift change or sometimes work shift, depending on context
• vaktskiftet = the shift change / the shift

The -et ending is the definite singular ending for a neuter noun.

So:

• et vaktskift = a shift change
• vaktskiftet = the shift change

Norwegian uses compound nouns very freely, much more than English.

Because Norwegian often uses the definite form where English may or may not use the.

Here, vaktskiftet refers to a specific shift event that both speaker and listener can identify, so the shift or the shift change is natural.

Compare:

• Når vaktskift begynner, ... = less natural here; more general or abstract
• Når vaktskiftet begynner, ... = when the shift starts

In real Norwegian, the definite form is very common in everyday statements like this.

Norwegian usually uses the present tense for future meaning when the time is clear from the context.

So:

• Så snart vaktskiftet begynner ... literally uses present tense
• but it can refer to the future: As soon as the shift starts ...

This is very normal in Norwegian.

Examples:

• Når han kommer, drar vi. = When he comes, we leave / we’ll leave
• Hvis det regner, blir vi hjemme. = If it rains, we’ll stay home

So begynner is exactly what you would expect.

Because the sentence begins with a subordinate clause:

• Så snart vaktskiftet begynner = subordinate time clause
• tar jeg på meg hørselsvernet = main clause

In Norwegian, it is standard to separate an introductory subordinate clause from the main clause with a comma.

So the structure is:

• [subordinate clause], [main clause]

This is because Norwegian is a V2 language in main clauses. That means the finite verb normally comes in the second position.

The sentence begins with the subordinate clause:

• Så snart vaktskiftet begynner

That whole clause counts as the first element. So in the main clause, the verb must come next:

• tar jeg på meg hørselsvernet

Pattern:

• [First element] + [finite verb] + [subject] ...

Compare:

• Jeg tar på meg hørselsvernet.
• Så snart vaktskiftet begynner, tar jeg på meg hørselsvernet.

This inversion is one of the most important word-order rules in Norwegian.

Here tar på meg means put on in the sense of put on oneself / get dressed in / put on for wearing.

It comes from the expression:

• å ta på seg = to put on

Examples:

• ta på seg jakka = put on the jacket
• ta på seg hansker = put on gloves
• ta på seg hørselsvernet = put on the hearing protection

So in your sentence:

• tar jeg på meg hørselsvernet = I put on the hearing protection

Because å ta på seg noe is the idiomatic way to say put something on yourself.

The parts matter:

• ta = take
• på = on
• seg / meg / deg ... = oneself / myself / yourself

So:

• Jeg tar på meg hørselsvernet. = I put on the hearing protection.

If you say only:

• Jeg tar hørselsvernet.

that usually means I take the hearing protection.

And if you say:

• Jeg tar på hørselsvernet.

that normally means I touch the hearing protection, because ta på by itself often means touch.

So the reflexive pronoun is essential here.

Because the subject is jeg, so the reflexive-style expression must match the person:

• jeg → meg
• du → deg
• han/hun/den/det/de → often seg in reflexive use

Examples:

• Jeg tar på meg jakka. = I put on my jacket.
• Du tar på deg jakka. = You put on your jacket.
• Han tar på seg jakka. = He puts on his jacket.

So seg is mainly used for third person, while meg is correct for first person.

Hørselsvernet means the hearing protection.

It is also a compound noun:

• hørsel = hearing
• vern = protection
• hørselsvern = hearing protection
• hørselsvernet = the hearing protection

You may notice the extra -s- in the middle:

• hørsel
  • vern → hørselsvern

That linking -s- is very common in Norwegian compounds.

Norwegian often uses a singular noun where English might prefer a plural or a different expression.

So:

• hørselsvernet = the hearing protection

This can refer to one item, a set of earmuffs, or hearing protection as equipment in general.

That is perfectly natural in Norwegian. Similar patterns happen in English too with words like equipment, which are grammatically singular but can refer to multiple pieces.

No. They are related, but not the same.

• å ta på seg = to put on
• å ha på seg = to be wearing / have on

Compare:

• Jeg tar på meg hørselsvernet. = I put on the hearing protection.
• Jeg har på meg hørselsvernet. = I am wearing the hearing protection.

So ta på seg is the action of dressing/equipping yourself, while ha på seg describes the resulting state.

Yes, but the meaning changes slightly.

• Når vaktskiftet begynner, ... = When the shift starts, ...
• Så snart vaktskiftet begynner, ... = As soon as the shift starts, ...

Så snart sounds more immediate. It suggests that the second action happens right away, with little or no delay.

So both are grammatical, but så snart is more precise if you want to stress immediacy.

The sentence has two parts:

1. Så snart vaktskiftet begynner

   • subordinate clause
   • conjunction: så snart
   • subject: vaktskiftet
   • verb: begynner

2. tar jeg på meg hørselsvernet

   • main clause
   • finite verb first because of V2 after the fronted clause: tar
   • subject: jeg
   • expression: på meg
   • object: hørselsvernet

So the overall pattern is:

• Time clause + comma + main clause with inversion

That structure is extremely common in Norwegian.

Yes. You can put the main clause first:

• Jeg tar på meg hørselsvernet så snart vaktskiftet begynner.

This is also correct and very natural.

The difference is mostly about emphasis:

• Så snart vaktskiftet begynner, tar jeg på meg hørselsvernet.
  Emphasizes the timing first.
• Jeg tar på meg hørselsvernet så snart vaktskiftet begynner.
  Starts with the subject and sounds a little more neutral.

Both versions are good Norwegian.