ISA RP12.13.02

W/D S/S BY ISA 60079-29-2

ANSI/ISA-RP12.13.02 (IEC 61779-6 Mod) gives guidance onthe selection, installation, use, and maintenance of electricallyoperated group II apparatus for the detection and measurement offlammable gases complying with the requirements ofANSI/ISA-12.13.01 (IEC 61779-1 through 5 Mod). It is acompilation of practical knowledge to assist the user, and appliesto apparatus, instruments and systems that indicate the presence ofa flammable or potentially explosive mixture of gas or vapour withair by using an electrical signal from a gas sensor to produce ameter reading, to activate a visual or audible pre-set alarm orother device, or any combination of these.

NOTE — When in classified areas, the apparatus should be soinstalled and used that it is not capable of itself igniting aflammable gas-air mixture. It should therefore comply with therequirements of ANSI/NFPA 70, Articles 500-505.

For the purpose of this document flammable gases shall includeflammable vapours.

This document applies only to group II apparatus intended foruse in industrial and commercial safety applications, involvingareas classified in accordance with ANSI/NFPA 70, Articles500-505.

For the purpose of this doment, apparatus includes

a) fixed apparatus;

b) transportable apparatus; and

c) portable apparatus.

This document is not intended to cover the following:

a) Apparatus intended only for the detection of non-flammabletoxic gases

b) Apparatus of laboratory or scientific type intended only foranalysis or measurement purposes

c) Apparatus intended for underground mining applications

d) Apparatus intended for applications in explosives processingand manufacture

e) Apparatus intended only for process control applications

f) Apparatus intended for the detection of a potentiallyflammable atmosphere resulting from dust or mist in air

Edition:

03

Published:

01/01/2003

ANSI:

ANSI Approved

Number of Pages:

72

File Size:

1 file , 800 KB