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40.7 Inspection and Maintenance

Fire Code 2015 of Delaware > 40 Dust Explosion and Fire Prevention > 40.7 Inspection and Maintenance

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40.7.1 General Requirements

The requirements of 40.7.1.1 through 40.7.1.3 shall be applied retroactively. [654:12.1]

An inspection, testing, and maintenance program shall be developed and implemented to ensure that the fire and explosion protection systems and related process controls and equipment perform as designed. [654:12.1.1]

40.7.1.2

The inspection, testing, and maintenance program shall include the following:

Fire and explosion protection and prevention equipment in accordance with the applicable NFPA standards
Dust control equipment
Housekeeping
Potential ignition sources
*Electrical, process, and mechanical equipment, including process interlocks
Process changes
Lubrication of bearings [654:12.1.2]

40.7.1.3

Records shall be kept of maintenance and repairs performed. [654:12.1.3]

40.7.2 Specific Requirements

40.7.2.1 Maintenance of Material Feeding Devices

40.7.2.1.1

Bearings shall be lubricated and checked for excessive wear on a periodic basis. [654:12.2.1.1]

40.7.2.1.2

If the material has a tendency to adhere to the feeder or housing, the components shall be cleaned periodically to maintain good balance and minimize the probability of ignition. [654:12.2.1.2]

40.7.2.2 Maintenance of Air-Moving Devices

40.7.2.2.1

Fans and blowers shall be checked periodically for excessive heat and vibration. [654:12.2.2.1]

40.7.2.2.2

Maintenance, other than the lubrication of external bearings, shall not be performed on fans or blowers while the unit is operating. [654:12.2.2.2]

40.7.2.2.3

Bearings shall be lubricated and checked periodically for excessive wear. [654:12.2.2.3]

40.7.2.2.4*

If the material has a tendency to adhere to the rotor or housing, the components shall be cleaned periodically to maintain good balance and minimize the probability of ignition. [654:12.2.2.4]

40.7.2.2.5*

The surfaces of fan housings and other interior components shall be maintained free of rust. [654:12.2.2.5]

40.7.2.2.6

Aluminum paint shall not be used on interior steel surfaces. [654:12.2.2.6]

40.7.2.3 Maintenance of Air-Material Separators

40.7.2.3.1 Means to Dislodge

40.7.2.3.1.1

Air-material separation devices that are equipped with a means to dislodge particulates from the surface of filter media shall be inspected periodically as recommended in the manufacturer's instructions for signs of wear, friction, or clogging. [654:12.2.3.1.1]

40.7.2.3.1.2

These devices shall be adjusted and lubricated as recommended in the manufacturer's instructions. [654:12.2.3.1.2]

40.7.2.3.2

Air-material separators that recycle air (i.e., cyclones and filter media dust collectors) shall be maintained to comply with 6.1.3 of NFPA 654. [654:12.2.3.2]

40.7.2.3.3

Filter media shall not be replaced with an alternative type unless a thorough evaluation of the fire hazards has been performed, documented, and reviewed by management. [654:12.2.3.3]

40.7.2.4 Maintenance of Abort Gates and Abort Dampers

Abort gates and abort dampers shall be adjusted and lubricated as recommended in the manufacturers' instructions. [654:12.2.4]

40.7.2.5 Maintenance of Fire and Explosion Protection Systems

40.7.2.5.1

All fire detection equipment monitoring systems shall be maintained in accordance with the requirements of 13.7.4.4. [654: 12.2.5.1]

40.7.2.5.2

All fire-extinguishing systems shall be maintained pursuant to the requirements established in the standard that governs the design and installation of the system. [654:12.2.5.2]

40.7.2.5.3*

All vents for the relief of pressure caused by deflagrations shall be maintained. [654:12.2.5.3]

40.7.2.5.4

All explosion prevention systems and inerting systems shall be maintained pursuant to the requirements of NFPA 69. [654:12.2.5.4]

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