Investigating Natural Gas Systems

Credit Hours:  3
Approximate reading time: 0.5 Hours
Approximate online time: 0.5 Hours

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Disclaimer- NFPA and other resource editions cited within the CFITrainer.Net site were current as of the release of the respective modules. The field of fire investigation and its guiding documents are constantly evolving and it is incumbent upon the fire investigator to remain up to date with the guidance in the current editions of the documents referenced in all modules on CFITrainer.Net, regardless of which edition was used in the writing of the module.
Program Abstract

Natural gas is a common fuel gas used in residential, commercial and industrial type applications. Due to properties of the fuel, these systems may be the cause of a fire or may result in additional damage to a structure when exposed to fire. Fuel gas systems can influence the way a building burns in the following ways: as an initial fuel source, as an initial ignition source, as both fuel and ignition sources, and as factors influencing fire spread. These influences can complicate the investigative process. The fire investigator should have a basic understanding of the potential role of natural gas as a fuel source, an ignition source, and a factor in fire spread. The fire investigator should also know the tests that may be required as part of the fire investigation when natural gas piping or equipment is involved. This module presents the role natural gas can play in fire ignition, fuel load, and spread; the elements of investigating a fire in a residence where natural gas is present; and the potential role the gas utility or the municipality can play an investigation. The module also discusses the documentation of the natural gas system and the types of tests that may be required as part of the fire investigation when natural gas piping or equipment is involved.

Prior to taking this module, CFITrainer.Net suggests the investigator possess a basic, working knowledge of residential natural gas systems.The module "Residential Natural Gas Systems" may be a component of developing this knowledge.

The natural gas modules presented on CFITrainer.Net are not intended as a comprehensive education on the topic of natural gas and/or examination of natural gas systems at a fire scene.The procedures discussed in these CFITrainer.Net natural gas programs are "best practices" based on applicable NFPA Standards and Guides; jurisdictional variations may occur.Although many concepts are presented in the modules, these concepts are a basic introduction only and additional information, training, and education may be needed to fully understand these topics and competently evaluate a natural gas system.Therefore, completion of the natural gas modules available on CFITrainer.Net does not qualify you to examine the natural gas system at a fire scene.

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