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Intake: c/o #TN00026166

NFPA 99, 1999 edition

3-4.1.1.14 + Requirements for Safety Devices.
[110: 3-5.5.2]
(a) Internal Combustion Engines. Internal combustion engines serving generator sets shall be equipped with the following:
1. A sensor device plus visual warning device to indicate a water-jacket temperature below those required in 3-4.1.1.9
2. Sensor devices plus visual prealarm warning device to indicate the following:
a. High engine temperature (above manufacturer ' s recommended safe operating temperature range)
b. Low lubricating oil pressure (below manufacturer ' s recommended safe operating range)
c. Low water coolant level
3. An automatic engine shutdown device plus visual device to indicate that a shutdown took place due to the following:
a. Overcrank (failed to start)
b. Overspeed
c. Low lubricating oil pressure
d. Excessive engine temperature
4. A common audible alarm device to warn that any one or more of the prealarm or alarm conditions exist
(b) Other Types of Prime Movers. Prime movers, other than internal combustion engines, serving generator sets shall have appropriate safety devices plus visual and audible alarms to warn of alarm or approaching alarm conditions.
(c) Liquid Fuel Supplies. Liquid fuel supplies for emergency or auxiliary power sources shall be equipped with a sensor device to warn that the main fuel tank contains less than a 3-hour operating supply.
3-4.1.1.15 + Alarm Annunciator.
A remote annunciator, storage battery powered, shall be provided to operate outside of the generating room in a location readily observed by operating personnel at a regular work station (see NFPA 70, National Electrical Code, Section 700-12.)
The annunciator shall indicate alarm conditions of the emergency or auxiliary power source as follows:
(a) Individual visual signals shall indicate the following:
1. When the emergency or auxiliary power source is operating to supply power to load
2. When the battery charger is malfunctioning
(b) Individual visual signals plus a common audible signal to warn of an engine-generator alarm condition shall indicate the following:
1. Low lubricating oil pressure
2. Low water temperature (below those required in 3-4.1.1.9)
3. Excessive water temperature
4. Low fuel - when the main fuel storage tank contains less than a 3-hour operating supply
5. Overcrank (failed to start)
6. Overspeed
Where a regular work station will be unattended periodically, an audible and visual derangement signal, appropriately labeled, shall be established at a continuously monitored location. This derangement signal shall activate when any of the conditions in 3-4.1.1.15(a) and (b) occur, but need not display these conditions individually. (110:3-5.5.2)
This Standard is not met as evidenced by:


Based on observation, it was determined the facility failed to provide signals from the generators to an area that provided visual and audio warning to alert personnel of generator conditions.

The findings included:

Observations during the investigation survey conducted on 7/9/10, it was revealed the facility failed to provide an annunciator that provided individual audible signals that would warn personnel of problems with the operation of the generators.

Intake: c/o #TN00026166

NFPA 99, 1999 edition

3-4.1.1.14 + Requirements for Safety Devices.
[110: 3-5.5.2]
(a) Internal Combustion Engines. Internal combustion engines serving generator sets shall be equipped with the following:
1. A sensor device plus visual warning device to indicate a water-jacket temperature below those required in 3-4.1.1.9
2. Sensor devices plus visual prealarm warning device to indicate the following:
a. High engine temperature (above manufacturer ' s recommended safe operating temperature range)
b. Low lubricating oil pressure (below manufacturer ' s recommended safe operating range)
c. Low water coolant level
3. An automatic engine shutdown device plus visual device to indicate that a shutdown took place due to the following:
a. Overcrank (failed to start)
b. Overspeed
c. Low lubricating oil pressure
d. Excessive engine temperature
4. A common audible alarm device to warn that any one or more of the prealarm or alarm conditions exist
(b) Other Types of Prime Movers. Prime movers, other than internal combustion engines, serving generator sets shall have appropriate safety devices plus visual and audible alarms to warn of alarm or approaching alarm conditions.
(c) Liquid Fuel Supplies. Liquid fuel supplies for emergency or auxiliary power sources shall be equipped with a sensor device to warn that the main fuel tank contains less than a 3-hour operating supply.
3-4.1.1.15 + Alarm Annunciator.
A remote annunciator, storage battery powered, shall be provided to operate outside of the generating room in a location readily observed by operating personnel at a regular work station (see NFPA 70, National Electrical Code, Section 700-12.)
The annunciator shall indicate alarm conditions of the emergency or auxiliary power source as follows:
(a) Individual visual signals shall indicate the following:
1. When the emergency or auxiliary power source is operating to supply power to load
2. When the battery charger is malfunctioning
(b) Individual visual signals plus a common audible signal to warn of an engine-generator alarm condition shall indicate the following:
1. Low lubricating oil pressure
2. Low water temperature (below those required in 3-4.1.1.9)
3. Excessive water temperature
4. Low fuel - when the main fuel storage tank contains less than a 3-hour operating supply
5. Overcrank (failed to start)
6. Overspeed
Where a regular work station will be unattended periodically, an audible and visual derangement signal, appropriately labeled, shall be established at a continuously monitored location. This derangement signal shall activate when any of the conditions in 3-4.1.1.15(a) and (b) occur, but need not display these conditions individually. (110:3-5.5.2)
This Standard is not met as evidenced by:


Based on observation, it was determined the facility failed to provide signals from the generators to an area that provided visual and audio warning to alert personnel of generator conditions.

The findings included:

Observations during the investigation survey conducted on 7/9/10, it was revealed the facility failed to provide an annunciator that provided individual audible signals that would warn personnel of problems with the operation of the generators.