2.3 NOMENCLATURE
Due to the technical nature of this manual, many special terms, abbreviations and acronyms are used throughout
the manual. Some of these terms are well-known industry-specific terms while others may be special product-
specific terms used by General Electric. The first instance of any acronym or term used in a particular chapter is
explained. In addition, a separate glossary is available on the General Electric website, or from the General Electric
contact centre.
We would like to highlight the following changes of nomenclature however:
● The word 'relay' is no longer used to describe the device itself. Instead, the device is referred to as the 'IED'
(Intelligent Electronic Device), the 'device', or the 'product'. The word 'relay' is used purely to describe the
electromechanical components within the device, i.e. the output relays.
● British English is used throughout this manual.
● The British term 'Earth' is used in favour of the American term 'Ground'.
2.4
COMPLIANCE
The device has undergone a range of extensive testing and certification processes to ensure and prove
compatibility with all target markets. A detailed description of these criteria can be found in the Technical
Specifications chapter.
P543i/P545i Chapter 1 - Introduction
P54x1i-TM-EN-1 5
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