3903.6 Liquefied Petroleum Gas.

Liquefied petroleum gases (LPG) shall not be released to the atmosphere except when released in accordance with Section 7.3

of NFPA 58. LPG liquid piping systems shall be in compliance with California Fire Code Chapter 61.

(82)

California Fire Code, Section 3903.6.1 is added to read:

3903.6.1 Exhaust. An approved exhaust system shall be provided for LPG extractions.

(83)

California Fire Code, Section 3903.6.1.1 is added to read:

3903.6.1.1 Installation. The exhaust systems shall be installed and maintained in accordance with the California Mechanical Code.

(84)

California Fire Code, Section 3903.6.1.2 is added to read:

3903.6.1.2 Processes. All LPG extraction operations, including processes for off-gassing spent plant material and oil retrieval, shall be conducted within a chemical fume hood, enclosure, or room in compliance with the California Mechanical Code.

(85)

California Fire Code, Section 3903.6.2 is added to read:

3903.6.2 Electrical Systems. Electrical equipment shall be in accordance with Section 3903.6..2.1 through 3906.2.5.

(86)

California Fire Code, Section 3903.6.2.1 is added to read:

3903.6.2.1 Electrical Bonding and Grounding. All conductive equipment and conductive objects within the exhaust room shall be bonded and grounded in accordance with California Electrical Code.

(87)

California Fire Code, Section 3903.6.2.3 is added to read:

3903.6.2.2 Classified Areas. The area within a hood or enclosure used for LPG extractions shall be classified as a Class 1, Division 1 hazardous location in accordance with the California Electrical Code. Areas adjacent to Class 1, Division 1 locations shall be classified in accordance with the California Electrical Code.

(88)

California Fire Code, Section 3903.6.2.3 is added to read:

3903.6.2.3 Interlock. All electrical components within the extraction room shall be interlocked with the hazardous exhaust system such that room lighting and other extraction room electrical equipment will only operate when the exhaust system is in operation.

(89)

California Fire Code, Section 3903.6.2.4 is added to read:

3903.6.2.4 Emergency Power. An automatic emergency power system shall be provided for the following items, when installed:

Extraction room lighting

Extraction room ventilation system

Solvent gas detection system

Exception: Except where required by other sections of this code, extraction room ventilation systems in existing facilities are not required to have a secondary power source, such as emergency or standby power until such time that the medium of extraction or solvent is changed.

(90)

California Fire Code, Section 3903.6.2.5 is added to read:

3903.6.2.5 Gas Detection Systems. Gas detection systems shall be provided with constant non-interlocked power.

(91)

California Fire Code, Section 3903.7 is added to read: