Flameproof And Dust Ignition Proof Requirements; General; Cable Glands; Natural Gas - GE Masoneilan SVI FF Quick Starter Manual

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FLAMEPROOF and DUST IGNITION PROOF REQUIREMENTS

4.1

General

The 1/2 inch NPT fittings must enter the housing at least five full turns.
The cover flange must be clean and free of corrosion products.
4.2

Cable Glands

Certified cable glands are required based on the hazardous area the device is
installed in. That is, the particular cable gland used must have the same
certification as the tick-box checked off on the label.
4.3

Natural gas

Use of a pressurized gas which is ignitable in the presence of air (for example
natural gas) is not allowed as the SVI FF positioner supply pressure in a
flameproof (protection type "d") installation.
4.4

Bolting

"X" Marking on label- M8 X 1.25-6g cover screws must be supplied by GE. No
substitution allowed. Minimum yield stress to be 296 N/mm^2 (43,000 psi).
4.5

Carbon Disulphide Exclusion

Carbon Disulphide is excluded.
(IEC 60079-1, Clause 15.4.3.2.2., carbon disulphide is excluded for enclosures
with a volume greater than 100cm
4.6

Label Cleaning

"X" marking on label-Potential Electrostatic Charge Hazard – Use only damp cloth
when cleaning or wiping. Do not use solvent.
4.7

Dust Environment

"X" marking on label-Instruments Installed in dusty hazardous areas. Must be
cleaned regularly to prevent the buildup of dust layers on any surface.
To avoid the risk from electrostatic discharge follow the guidance as detailed in
EN TR50404.
Copyright 2016. This document and all information herein is the property of Dresser Inc.
22 | =GE Oil & Gas
(NOT RELEVANT TO PROTECTION TYPES)
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© 2017 General Electric Company. All rights reserved
GE Oil & Gas
ES-776 Rev L
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