The primary objective of SS 551 is to ensure that all conductive parts of an electrical installation are connected to the general mass of earth. This creates a low-resistance path for fault currents, achieving three main goals:
apply to ships, aircraft, offshore installations, medical equipment earthing, or internal equipment earthing. Core Earthing Principles ss 551 code of practice for earthing
Materials must be chosen to withstand the tropical, humid environment of Singapore to prevent the earthing path from degrading over time. The primary objective of SS 551 is to
: Connecting all exposed conductive parts (like metal pipes or conduits) to the earthing system to prevent dangerous touch voltages. medical equipment earthing
According to SS 551, a properly designed earthing system must achieve three main goals: