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Prospective Fault Current (PFC)
The maximum possible fault current for an installation under prospective fault conditions.
Rated Short-Circuit Capacity
The maximum current that a protective device can withstand without failure.
Breaking Capacity
Term used for fuses to describe their ability to break the circuit during a fault.
PSCC
Prospective Short-Circuit Current, tested between live and neutral conductors.
PEFC
Prospective Earth Fault Current, tested between live and earth conductors.
Circuit Preparation
Ensuring all conductors, including earth, are connected before testing.
GS38
Guidelines ensuring the safety of testing instruments and leads when working with live circuits.
Single-Phase Installation
An installation with a single live wire and neutral, tested for fault current.
Three-Phase Installation
An installation with three live wires, where fault current testing is conducted across all phases.
Distribution Board
The electrical panel that distributes electricity to different circuits within a property.
Note 
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