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C2, and the test that separates it from C1Cable sheath stops outside the board. What code?

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Is it dangerous now, under normal conditions — or only dangerous if a fault occurs?
C1 — danger presentC2 — potentially dangerous
When is it dangerousRight now, in normal useOnly when a fault occurs
TypicalAccess to live partsProtective measures missing or ineffective
ExamplesMissing blanks, exposed busbar, broken accessory with conductors reachable, reverse polarity at the originMissing earthing conductor, missing CPC at a point, main bonding missing
Why a missing earthing conductor is a C2 and not a C1. Under normal operation the earthing system does nothing at all — the installation works and is safe. It only becomes dangerous the moment there is an earth fault. Dangerous-when-faulted is the definition of C2.
✋The general rule for earthing and bonding defects: C2. Anything wrong with the earthing conductor or main protective bonding is C2 — unless a serious fault has actually been detected on the system, which changes the picture. Bonding that is in place but connected to branch pipework is coded differently in the guide: see number 2 in the scenarios.
Is it dangerous RIGHT NOW? yes no — only on a fault C1 — danger present access to live parts exposed busbar, missing blanks, reverse polarity at the origin C2 — potentially dangerous a protective measure is missing no cpc at a point, no earthing conductor, main bonding missing
Under normal conditions nobody is hurt by a C2 — the danger needs a fault to appear first. That one distinction decides most coding questions.

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