German Safety Instruction: Dangling Modifier and Imperative Register
You are translating a German technical safety instruction into English. Source: "Vor dem Öffnen des Gehäuses ist die Anlage spannungsfrei zu schalten und gegen Wiedereinschalten zu sichern." Your draft: "Before opening the housing, the system is to be de-energized and to be secured against restarting." The reviewer notes that the English is grammatical but has a dangling modifier, a heavy passive, and an ambiguous scope: does "gegen Wiedereinschalten zu sichern" apply to the system or to the person performing the task? The client's style guide requires imperative instructions for safety steps and prohibits "is to be" constructions.
1. Identify the syntactic problem in the draft and explain why it matters for a safety instruction.
Read the worked answer
The problem is a dangling modifier. "Before opening the housing" is a participial phrase whose implied subject is the person performing the task, but the main clause subject is "the system." Literally, the sentence says the system is doing the opening. The German infinitive construction "ist ... zu schalten" is an impersonal obligation, but when it is rendered as "the system is to be de-energized," the agent disappears. In a safety instruction, that matters because the reader needs to know who must act and in what order. The draft also leaves the scope of "gegen Wiedereinschalten zu sichern" unclear: the system is to be secured, but the English "secured against restarting" could be read as securing the person or the task rather than the equipment. The imperative form fixes both the agent and the sequence.
2. Rewrite the instruction in imperative style and resolve the scope of "gegen Wiedereinschalten sichern."
Read the worked answer
A clear revision is: "Before opening the housing, de-energize the system and secure it against being switched back on." The imperative "de-energize" makes the technician the agent and removes the dangling modifier. "Secure it" refers unambiguously to "the system," because "it" follows the object of the first imperative. "Against being switched back on" is more precise than "against restarting," which could suggest an automatic restart rather than a deliberate re-energization. If the client prefers a more technical term, "secure it against re-energization" is also defensible, provided the termbase supports it. The sequence is preserved: isolate the power first, then lock out or otherwise secure against reconnection. No new step is added.
3. A colleague says the passive is more objective and should be kept. How do you respond, and what if the text were a descriptive report rather than an instruction?
Read the worked answer
I would respond that the passive is not inherently more objective; it is a register convention. German technical prose often uses impersonal passive constructions for instructions, but English safety writing conventionally uses the imperative for required actions. The client's style guide is explicit, and the imperative actually improves safety by naming the agent and the order of operations. Objectivity comes from precision, not from suppressing the actor. If the text were a descriptive incident report-for example, "the system was de-energized before the housing was opened"-the passive would be appropriate because the agent may be unknown or irrelevant. Genre controls the choice. Here the genre is an instruction, so the imperative is the better fit, and the passive draft should be revised rather than retained for tone.