ASTM F2876-10

Standard Practice for Thermal Rating and Installation of Internal Combustion Engine Packages for use in Hazardous Locations in Marine Applications

ABSTRACT
This practice covers methods of testing, rating, and installation of internal combustion engine packages used in hazardous areas in marine applications. The purpose of this practice is to thermally rate engine packages, and provide additional installation recommendations to reduce the risk of igniting ignitable mixtures that may be present near the hazardous areas of marine vessels. In this specification, only a marine engine suitable for the service, designed and constructed in accordance with the requirements of 3.2.1, is considered. Thermal rating of the engine is determined by the actual readings of engine and exhausts system temperatures within hazardous areas, as defined by the requirements and references in Practices 2.2 and 2.3 or as designated by the authority.
SCOPE
1.1 This practice covers the method of testing, rating and installation of internal combustion engine packages for use in hazardous areas in marine applications. The thermal rating of the engine is determined by the actual readings of engine and exhaust system temperatures within hazardous areas, as defined by references in 2.2 and 2.3of this practice, or as designated by the authority having jurisdiction, or both. The goal of this practice is to thermally rate engine packages, and provide additional installation recommendations, in order to reduce the risk of igniting the ignitable mixtures that may be present within the hazardous areas of marine vessels.
1.2 Only a marine engine suitable for the service, designed and constructed in conformance with the requirements of 3.1.2, is considered.
1.3 The system of units in this practice shall be SI (metric) form, along with the standard (English) system equivalent placed in parentheses, for example, 20°C (68°F).
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Oct-2010
• ICS: 47.020.20 - Marine engines and propulsion systems
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.07 - General Requirements

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F2876 −10 AnAmerican National Standard
Standard Practice for
Thermal Rating and Installation of Internal Combustion
Engine Packages for use in Hazardous Locations in Marine
Applications
This standard is issued under the fixed designation F2876; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.3 IEC Standards:
IEC 60092 Electrical installations in ships—Part 502:
1.1 This practice covers the method of testing, rating and
Tankers-Special features
installation of internal combustion engine packages for use in
2.4 CFR:
hazardous areas in marine applications. The thermal rating of
CFR 46 United States Code of Federal Regulations,Title 46,
the engine is determined by the actual readings of engine and
Shipping
exhaust system temperatures within hazardous areas, as de-
fined by references in 2.2 and 2.3of this practice, or as
2.5 EN Standards:
designated by the authority having jurisdiction, or both. The
EN 1834-1 Reciprocating internal combustion engines.
goal of this practice is to thermally rate engine packages, and
Safety requirements for design and construction of en-
provide additional installation recommendations, in order to
gines for use in potentially explosive atmospheres.
reduce the risk of igniting the ignitable mixtures that may be
present within the hazardous areas of marine vessels. 3. Terminology
1.2 Only a marine engine suitable for the service, designed 3.1 Definitions:
andconstructedinconformancewiththerequirementsof3.1.2, 3.1.1 hazardous location—area in which an explosive gas
is considered. atmosphere is or may be expected to be present, in quantities
such as to require special precautions for the construction,
1.3 The system of units in this practice shall be SI (metric)
installation and use of electrical apparatus and other potential
form, along with the standard (English) system equivalent
heat sources. These areas are defined by the authority having
placed in parentheses, for example, 20°C (68°F).
jurisdiction, or in accordance with NFPA 70 (NEC) Articles
1.4 This standard does not purport to address all of the
500, 501 and 504; or NEC Articles 500 and 505; or IEC
safety concerns, if any, associated with its use. It is the
60092-502, or a combination thereof.
responsibility of the user of this standard to establish appro-
3.1.2 marine engine—a compression-ignition engine de-
priate safety and health practices and determine the applica-
signed and constructed for operation in the marine
bility of regulatory limitations prior to use.
environment, regardless of horsepower, to the applicable stan-
dards or rules of a recognized classification society in Title 46,
2. Referenced Documents
2 Code of Federal Regulations, Part 8, or a comparable engine
2.1 ASTM Standards:
design and construction standard.
F683 Practice for Selection and Application of Thermal
3.1.3 ignitable mixture —a mixture of gas, such as natural
Insulation for Piping and Machinery
gas, or similar volatile hydrocarbon gas with normal air, that
2.2 NFPA Standards:
will propagate flame or explode when exposed to an ignition
NFPA 70 The National Electric Code (NEC), 2008
source.
3.1.4 ignition temperature—(explosive atmosphere)—the
This practice is under the jurisdiction of ASTM Committee F25 on Ships and
lowest temperature at which an ignitable mixture may be
Marine Technology and is the direct responsibility of Subcommittee F25.07 on
General Requirements.
ignited.
Current edition approved Nov. 1, 2010. Published January 2011. DOI:10.1520/
F2876-10.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
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Available from National Fire Protection Association (NFPA), 1 Batterymarch 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
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F2876−10
3.1.5 maximum surface temperature—the highest tempera- 5.2.10 Airductswithinthehazardouslocationshallbefitted
tureattainedunderthemostsevereoperatingconditionsbyany with flame arrestors, or other equipment designed and tested to
equipment part or surface capable of igniting an ignitable perform the functions of a flame arrestor. EN 1834-1 should be
mixture. consulted.
5.2.11 Exhaust systems shall be fitted with a spark arrestor,
or other equipment designed and tested to perform the func-
4. Summary of Practice
tions of a spark arrestor. EN 1834-1 should be consulted.
4.1 While there have been great improvements made in the
5.2.12 To help prevent unsafe operation, warning signs and
safety of electrical and electronic equipment utilized in haz-
labels shall be used to indicate when necessary equipment
ardous locations, there has been little development concerning
guards, or protective covers, are removed from the engine.
reducing the hazards associated with high temperature surfaces
5.2.13 The procedures outlined in EN 1834-1 should be
of internal combustion engines operating in the same hazard-
consulted for additional hazard and risk reduction.
ous locations. Several factors have significantly increased the
5.2.14 The procedures outlined in Practice F683 may be
temperature of hot surfaces and exhaust gases of internal
applied if necessary in order to limit the exposed surface
combustion engines. Some of these factors are performance
temperatures of piping and machinery.
related, while others have resulted from compliance with new
5.2.15 Allelectricalorelectronicequipmentassociatedwith
environmental standards.
engine installations in hazardous locations shall be tested or
approved and listed or certified by an independent laboratory
4.2 This practice provides guidance for the temperature
for the Class and Group of the cargo carried or the hazardous
rating of marine internal combustion engines based on the
location to the standards and protection techniques specified
surface temperature exposures within a hazardous location in
under NFPA 70 (NEC) Articles 500, 501 and 504; or NEC
the marine environment.
Articles 500 and 505; or IEC 60092-502 and acceptable to the
authority having jurisdiction.
5. General Requirements
5.1 The application of this practice will help reduce the risk 6. Procedure for Rating
of fire, or explosions, caused by ignitable gas mixtures coming
6.1 The testing required in Section 7 shall be used to
in contact with the heated surfaces and hot exhaust gases
determine the highest temperature exposure of the engine
generated by compression ignition (diesel) engines used in, or
application package. The highest temperature obtained, based
near, hazardous locations.
on the most severe test operating and environmental (including
high ambient air temperature) conditions, will be the tempera-
5.2 Marine Engine Design and Construction Requirements:
ture used for determining the rating of the engine.
5.2.1 Special consideration should be given to engine ac-
cessoriessuchaspum
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