CCLME.ORG - DIVISION 1. HOUSING AND COMMUNITY DEVELOPMENT
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1. Asphalt Shingles. Asphalt shingles shall be applied only to solidly-sheathed roofs in accordance with manufacturer's installation instructions. The minimum slope for asphalt shingle installation shall be in accordance with manufacturer's instructions and as approved by the department.
2. Wood Shingles. Wood shingles shall not be installed on slopes less than 4 inches to 12 inches unless they are installed over an underlay of not less than 15-pound felt, applied as required for a base sheet, and unless approved by the department.
3. Wood Shakes. Shakes shall not be installed on a roof having a slope less than 4 inches to 12 inches unless they are installed over an underlay of not less than 30-pound felt, applied as required for a base sheet, and unless approved by the department.
4. Asbestos Cement Shingles. Asbestos cement shingles may be installed on slopes as low as 3 inches to 12 inches where undelayment consists of two layers of 15- pound felt applied in shingle fashion. Asbestos cement shingles shall not be installed on a roof having a slope less than 3 inches to 12 inches unless installed per manufacturer's instructions and as approved by the department.
5. Metal shingles. Metal shingles shall be installed according to manufacturer's installation instructions. The minimum slope for metal shingles shall be in accordance with the manufacturer's instructions and as approved by the department.
6. Slate Shingles and Tiles. Slate shingles and tile shall be installed according to manufacturer's installation instructions. The minimum slope for slate shingles and tile shall be in accordance with the maufacturer's instructions, and as approved the department.
Other Roof Coverings. General. The following roof coverings shall be applied in accordance with the manufacturer's installation instructions.
1. Metal Roofing. Metal roofing shall be installed according to the manufacturer's installation instructions and as approved by the department.
2. Corrugated Asbestos Cement Roofing. Corrugated asbestos cement roofing shall be applied only to solidly-sheathed roofs. Corrugated asbestos cement roofing shall be installed according to the manufacturer's installation instructions and as approved by the department.
Built-Up Roofs. General. Built-up roofing shall be applied only to solidly-sheathed roofs. Built-up roofing shall be applied by starting at the low spots and working toward the ridges with felts and cap sheets applied in shingle fashion to drain water. Felt and cap sheets shall be applied in solid, uniform moppings of bitumen. Built-up roofing shall be applied in accordance with the manufacturer's instructions only clean, dry decks and as approved by the department.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18056.5, Health and Safety Code.









s 4380. Application and Scope.
The provisions of this article relating to electrical equipment and installations apply to all commercial coaches manufactured, After November 23, 1970, and sold, offered for sale, rented, or leased within this State. The provisions of this article are also applicable to the alteration or conversion of electrical equipment and installations in any commercial coach bearing or required to bear a department insignia of approval.
(a) Standards for Equipment and Installations. Standards for equipment and installations are listed in Appendix CC-E-1. Equipment and installations conforming to these standards or to other approved standards shall be considered acceptable by the department when listed or labeled and installed in accordance with the requirements of this article and the conditions of their approval, except where otherwise provided in this article.
(b) Electrical Standards. Electrical equipment and installations in or on a commercial coach shall be installed in accordance with the requirements of the National Electrical Code, 1978 edition, unless otherwise specifically exempted or required by this division.


Note: Authority cited: Sections 18028 and 18055, Health and Safety Code Reference: Section 18055, Health and Safety Code.









s 4381. Definitions.
Definitions contained in the Health and Safety Code, Division 13, Part 2, in the National Electrical Code, 1978 edition, and the following definitions shall apply to this article.
Converter. A device which changes electrical energy from one form to another, as from alternating current to direct current.
Distribution Panelboard means a single panel or group of panel units designed for assembly in the form a single panel; including buses, and with or without switches and/or automatic overcurrent protective devices for the control of light, heat or power circuits of small individual as well as aggregate capacity; designed to be placed in a cabinet or cutout box placed in or against a wall or partition and accessible only from the front.
Dwelling Unit. One or more habitable room which are designed to be occupied by one family with facilities for living, sleeping cooking, eating and sanitation.
Feeder Assembly. The overhead or under-chassis feeder conductor, including the grounding conductor, together with the necessary fittings and equipment or a power-supply cord approved for mobile home use, designed for the purpose of delivering energy from the source of electrical supply to the commercial coach distribution panelboard.
Low Voltage. An electromotive force rated at 24 volts or less, supplied from a transformer, converter or battery.
N.E.C. When used in this article shall mean the National Electrical Code, 1978 edition.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.











s 4382. Standards for Equipment and Installations.










s 4383. Low-Voltage Systems.
(a) Low-voltage circuits furnished and installed by the commercial coach manufacturer are subject to these regulations.
Exception: Vehicles containing only battery circuits of 24 volts or less supplying energy exclusively for the following are not subject to this subchapter:

(1) Illuminating lights when the vehicle contains no other systems such as plumbing, heating or electrical over 24 volts.
(2) Circuits supplying running lights, taillights, stop lights, electrical braking, or vehicle ignition systems.
(b) Wiring Materials
(1) Conductors. Copper conductors shall be used for low-voltage circuits.
(2) Insulation. Conductors shall conform to the requirements for Type HDT,SGT, or SGR, or Type SXL, or shall have insulation rated at least 60 degrees C and a minimum wall thickness of 30 mils of thermoplastic insulation or equal.
Note: See SAE Standard J1128 for Types HDT and SXL, and SAE Standard J1127 for Types SGT and SGR, in the 1977 SAE Handbook.
(3) Single-Wire. Single-wire, low-voltage conductors shall be of the stranded type.
(c) Marking of Insulated Low-Voltage Conductors. All insulated low-voltage conductors shall surface marked at intervals no greater than four feet as follows:
(1) Listed conductors shall be marked as required by the listing agency.
(2) SAE conductors shall be marked with the name or logo of the manufacturer, specification designated and wire gauge.
(3) Other conductors shall be marked with the name or logo of the manufacturer temperature rating, wire gauge, conductor material, and insulation thickness.
(d) Low-Voltage Wiring Methods.
(1) Securing conductors. Conductors shall be protected against physical damage and shall be secured. Where insulated conductors are clamped to the structure, the conductor insulation shall be supplemented by an additional wrap or layer of equivalent material, except that jacketed cables need not be so protected. Wiring shall be routed away from sharp edges, moving parts or sources.
(2) Splicing or Joining Conductors. Conductors shall be spliced or joined with approved splicing devices or by brazing, welding, or soldering with a fusible metal or alloy. coldered splices shall first be so spliced or joined as to be mechanically and electrically secure without solder and then soldered. All splices, joints, and free ends of conductors shall be covered with an insulation equivalent to that on the conductors.
(3) Separation of Circuits. Battery and direct-current circuits shall be physically separated by at least 1/2-inch gap or other approved means, from circuits of a different power source. Acceptable methods shall be by clamping, routing, or equivalent means which insure permanent total separation. Where circuits of different power sources cross, the external jacket of the nonmetallic sheathed cables shall be deemed adequate separation.
(4) Ground Terminals. Ground terminals shall be accessible for service. The surface on which ground terminals make contact shall be cleaned and fee from oxide or paint, or shall be electrically connected through use of a cadmium, tin or zinc plated external to other lockwasher or lock-ring terminals. Ground terminal attaching screws, rivets or bolts, nuts and lockwashers shall be cadmium, tin or zinc plated, except rivets shall be permitted to be unanodized aluminum when attaching to aluminum structures.
(e) Battery Installations. Storage batteries subject to the provisions of this Article shall be securely attached to the vehicle and installed in an area vapor-tight to the interior and ventilated directly to the exterior of the vehicle. When batteries are installed in a compartment the compartment shall be ventilated with openings having a minimum area of 1.7 square inches (11 cm<< super>>2) at both the top and at the bottom. Batteries shall not be installed in a compartment containing spark or flame producing equipment except that they shall be permitted to be installed in the engine generator compartment if they only charging source is from the engine generator.
(f) Exterior Lighting Circuits. Metal chassis or frame may be used as the return path for exterior lighting circuits Terminals for connection to the chassis or frame shall be of the solderless type and approved for the size and type of wire used. Mechanical connections to the frame or chassis shall be made secure.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4384. Overcurrent Protection, Low-Voltage Circuit Wiring.
(a) Rating of Overcurrent Protective Devices. Low-voltage circuit wiring shall be protected by overcurrent protective devices rated not in excess of the ampacity of copper conductors, as follows:

Wire Size Ampacity Wire Type

18....... 6...... Stranded only
16....... 8...... Stranded only
14....... 15...... Stranded or solid
12....... 20...... Stranded or solid
10....... 30...... Stranded or solid


Note: For other allowable conductor ampacities, refer to the National Electrical Code (NFPA 70-1978 (ANSI), Table 310-16.
(b) Circuit-Breakers or Fuses. Circuit-Breakers or fuses shall be of the approved type, including automotive types. Fuseholders shall be clearly marked with maximum fuse size.
Note: For further information see Society of Automotive Engineers (SAE) Standard for Electric Fuses (SAE J554a-1973; ANSI C118.1-1973) and Underwriters Laboratories Inc., Standard for Automotive Glass Tube Fuses (UL 275B-1973).
(c) Higher Current-Consuming Direct-Current Appliances. Higher current-consuming direct- current appliances such as pumps, compressors, heater blowers and similar motor-driven appliances shall be installed in accordance with the manufacturer's instructions. Motors which are controlled by automatic switching or by latching-type manual switches shall be protected in accordance with Section 430-32 (c) of the National Electrical Code (NFPA 70-1978 (ANSI)).
(d) Location of Overcurrent Protective Device. The overcurrent protective device shall be installed in an accessible location on the vehicle within 18 inches (457 mm) of the point where the power supply connects to the vehicle circuits. If located outside the vehicle, the device shall be protected against weather and physical damage.
Exception: External low voltage supply shall be permitted to be fused within 18 inches (457 mm) after entering the vehicle or after leaving a raceway.
(e) Switches, Low-Voltage Circuits. Switches shall have a direct current rating not less than the connected load.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4385. Equipment and Fixtures, Low-Voltage.
(a) Incandescent Lighting Fixtures. All incandescent low-voltage interior lighting fixtures shall be listed.
(b) Cigarette Lighter Receptacles. Twelve (12) volt receptacles that will accept and energize cigarette lighters shall be installed in a noncombustible outlet box.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4386. Circuit Overcurrent Protection.










s 4387. Combination Electrical Systems.
(a) General. Vehicle wiring suitable for connection to a battery or direct-current supply source shall be permitted to be connected to a 115-volt source provided that the entire wiring system and equipment are rated and installed in full conformity to the requirements of this Article covering 115-volt electrical systems. Circuits fed from alternating current transformers shall not supply direct-current appliances.
(b) Voltage Converters (115-Volt Alternating Current to Low-Voltage Direct Current). The 115-volt alternating current side of the voltage converter shall be wired in full conformity with requirements for 115-volt electrical systems.
Exception: Converters supplied as an integral part of an approved appliance shall not be subject to the above.
All converters and transformers shall be listed for use in recreational vehicles and designed or equipped to provide over-temperature protection. To determine the converter rating, the following formula shall be applied to the total connected load, including average battery charging rate, of all 12-volt equipment:
The first 20 amperes of load at 100 percent, plus the second 20 amperes of load
at 50 percent, plus all load above 40 amperes at 25 percent.

(c) Dual-Voltage Fixtures or Appliances. Fixtures or appliances having both 115-volt and low-voltage connections shall be listed or approved for dual voltage.
(d) Autotransformers. Autotransformers shall not be used.
(e) Receptacles and Plug Caps. When a vehicle is equipped with a 120-volt or 120/240-volt alternating-current system and/or a low-voltage system, receptacles and plug caps of the low-voltage systems shall differ in configuration from those of the 120- or 120/240-volt system. When a vehicle equipped with a battery or direct-current system has an external connection for low-voltage power, the receptacle shall have a configuration that will not accept 120-volt power.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4388. Identification.










s 4389. Fuel-Fired Engine Driven Generator Units.
(a) Certification. All fuel-fired engine driven generators shall be investigated and listed in accordance with nationally recognized standards by an approved testing agency. (See Appendix CC-E, Table CC-E-1)
(b) Installation. Fuel-fired engine driven generators shall be installed in accordance with the equipment manufacturers installation instructions and these regulations. A copy of the installation instructions shall be provided in the vehicle.
(c) Mounting. Generator units shall be mounted in a manner so that adequate structural support from the vehicle frame, is provided for the equipment. The equipment shall be secured in place by a method that will preclude displacement from vibration and road shock.
(d) Compartment Separation. Generator unit compartments shall be designed and installed to provide a vapor-tight separation between the compartment and the interior living areas of the vehicle.
(e) Compartment Construction. Generator unit compartments shall be constructed of galvanized steel, not less than 0.0299 inch (0.759 mm) thick. Seams and joints shall be lapped, mechanically secured and made airtight to the interior of the vehicle. Alternate materials and methods of construction may be used if they provide equivalent quality, strength, effectiveness, fire resistance, durability and safety.
(f) Compartment Penetration. Fuel-fired engine exhaust systems, fuel-supplies, electrical conduit, cables, conductors and equipment shall not penetrate any area of the compartment that separates the compartment from the interior of the vehicle. Electrical conduit, cables and conductors penetrating the compartment in areas other than those that separate the compartment from the interior of the vehicle, shall be protected by the use of tight fitting grommets.
(g) Compartment Ventilation. Compartments shall be provided with ventilation. The type, amount and location of compartment ventilation shall be provided in accordance with the equipment manufacturer's installation instructions.
(h) Exhaust Systems. Except as provided by the equipment manufacturer's installation instructions, fuel-fired engine exhaust systems shall be separated a minimum of 1 1/2 inches from any combustible material or insulated or shielded so that it does not raise the temperature of any combustible material to more than 194 degrees F (90 degrees C).
Exhaust systems shall be provided with an effective spark arrester and shall not terminate adjacent to the vehicle gasoline filler spout. Exhausts shall terminate beyond the periphery of the vehicle.
(i) Generator Protection. Generators shall be mounted in a manner to provide an effective bond to the vehicle chassis. Listed equipment shall be installed to ensure that the current-carrying conductors from the generator and from an outside source are not connected to the vehicle circuits at the same time.
(j) Supply Conductors. Supply conductors from a generator to a junction box or distribution panelboard shall be of the stranded type installed in flexible metal conduit or equivalent mechanical protection.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Sections 18055 and 18058, Health and Safety Code.









s 4390. Dual Supply.
(a) Where a dual-supply system, consisting of a generator and provisions for connecting to an outside source is installed, the feeder from the generator shall be protected by an overcurrent protective device.
(b) The two supply sources shall not be required to be of the same capacity.
(c) If the AC generator source exceeds 30 amperes, 115 volts, it shall be permissible to wire either as a 115-volt system or a 115/230-volt system, provided an overcurrent protective device of the proper rating is installed in the feeder circuit.
(d) The external power-supply assembly shall be permitted to be less than the calculated load but not less than 30 amperes and shall have over-current protection not greater than the capacity of the external power-supply assembly.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4391. Distribution Panelboard.
(a) Each vehicle shall have an appropriately rated branch circuit panelboard, and when required, a main disconnect shall be installed.
(b) Panelboards shall be of the dead front type and shall have one or more circuit breakers or Type S plug fuses. A main disconnecting means shall be provided where fuses are used, or when required by Article 230 of the N.E.C.
(c) The panelboard shall be installed in a readily accessible location with at least 30 inches clear horizontal working space directly in front of the panelboard. The bottom of the panelboard shall be not less than 24 inches above the floor of the coach unless the equipment is specifically approved for the purpose.
(d) The main circuit breakers or fuses, when installed, shall be plainly marked "Main." Branch and feeder circuits at the point of origin shall be legibly marked to indicate their purpose.
(e) If a fused branch circuit panelboard is used, the maximum fuse size for the mains shall be plainly indicated in a visible location with lettering at least one-fourth inch high.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4392. Circuit Breakers and Fuses.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4393. Feeder Assembly Equipment.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4394. Identification of Electrical System.
Each commercial coach shall have a label permanently affixed on or adjacent to the distribution panelboard indicating the voltage and calculated load of the electrical system in the vehicle.
Note: See Article 1, Section 4031 for label size and type of material.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4395. Conductors in Outlet Boxes.










s 4396. Wiring of Expandable or Multiple Units.
Expandable or multiple units shall have permanent type wiring methods and materials used for connecting such units to each other.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4397. Outdoor or Underchassis Wiring, 115-Volts or Over.
Where outdoor or underchassis wiring is 115-volt (nominal) or over and is exposed to moisture or mechanical damage, the wiring shall be protected by rigid metal conduit, intermediate metal conduit, or by electrical metallic tubing that is closely routed against frames and equipment enclosures.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4398. Rodent Resistance.
All exterior openings around wiring, conduit, cable, boxes and equipment shall be sealed to resist the entrance of rodents.









s 4399. Lighting Fixtures.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4400. Equipment Mounting.
Electrical equipment shall be securely mounted to prevent displacement during transit.









s 4401. Outdoor Outlets, Fixtures, Air-Cooling Equipment, Etc.


Note: Authority cited: Section 18020, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4402. Grounding.
(a) Grounding of both electrical and nonelectrical metal parts in a commercial coach shall be through connection to a grounding bus in the vehicle distribution panelboard. The grounding bus shall be grounded to the service ground in the service-entrance equipment located adjacent to the vehicle location. Neither the frame of the vehicle nor the frame of any appliance shall be connected to the neutral conductor in the commercial coach.
(b) The grounded (neutral) circuit terminals in the distribution panels and in ranges, clothes dryers, counter-mounted cooking units, and wall-mounted ovens shall be insulated from the equipment enclosure. Bonding screws, straps, or buses in the distribution panelboard or in appliances shall be removed and discarded.
Connections of ranges and clothes dryers with 115/230 v, 3-wire ratings shall be made with 4-conductor cord and 3-pole, 4-wire grounding-type plugs, or by Type AC metal clad cable or conductors enclosed in flexible metal conduit.
For 115-v rated devices, a 3-conductor cord and 2-pole, 3-wire grounding-type plug may be used.
(c) Equipment Grounding Means.
(1) In the electrical system, all exposed metal parts, enclosures, frames, lamp fixture canopies, etc., shall be effectively bonded to the grounding terminal or enclosure of the distribution panelboard.
(2) Cord-connected appliances shall be grounded by means of an approved cord with grounding conductor and grounding-type attachment plug.
(d) Bonding of Noncurrent-carrying Metal Parts.
(1) All exposed noncurrent-carrying metal parts that may become energized shall be effectively bonded to the grounding terminal or enclosure of the distribution panelboard. A bonding conductor shall be connected between each distribution panelboard and an accessible terminal on the chassis.
(2) Grounding terminals shall be of the solderless type and approved as pressure-terminal connectors recognized for the wire size used. The bonding conductor shall be solid or stranded, insulated or bare, and shall be No. 8 copper minimum or equal. The bonding conductor shall be routed so as not to be exposed to physical damage.
(3) Metallic gas, water, and waste pipes and metallic air circulating ducts shall be considered bonded if they are connected to the terminal on the chassis by clamps, solderless connectors, or by suitable grounding-type straps.
(4) Any metallic roof and exterior covering shall be considered bonded if the metal panels overlap one another and are securely attached to the wood or metal frame parts by metallic fasteners and if the lower panel of the metallic exterior covering is secured by metallic fasteners at a cross member of the chassis by two metal straps per vehicle unit at opposite ends. The bonding strap material shall be a minimum of 4 inches in width, of material equivalent to the metal siding or material of equal or better electrical conductivity. The straps shall be fastened with paint-penetrating fittings such as screws and star washers or equivalent approved for the purpose.


Note: Authority cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4403. Grounded Conductor (Neutral).










s 4404. Receptacle Outlets Requiring Ground-Fault Circuit Protection.
Where provided, each 120 volt, single-phase, 15 or 20 ampere receptacle outlet shall have ground-fault circuit protection for personnel in the following locations:
(a) Adjacent to a bathroom lavatory. (The receptacle outlet shall be a minimum of 30 inches, (762 MM) from the compartment floor).
(b) Adjacent to any lavatory.
(c) In an area occupied by a toilet, toilet and/or shower, or toilet and tub-shower enclosure. (A receptacle shall not be installed in a bathtub, shower or combination bathtub-shower compartment).
(d) On the exterior of the vehicle.


Note: Authority cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4405. Grounding of Noncurrent-Carrying Metal Parts.










s 4406. Switch and Receptacle Plates.


Note: Authority cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4407. Lighting Standards for Energy Conservation.
(1) Each area enclosed by ceiling-height partitions shall have independent control of the lighting within that area.
(2) All switching devices used to control lighting within an area shall be readily accessible to personnel occupying that area.
(3) For all areas larger than 100 square feet, the connected lighting load shall be so controlled that the overall illumination may be reduced by at least one half in a uniform pattern. The maximum area that may be controlled by any two switching devices shall be limited to that area which can be served by two (2) 20 ampere single pole circuits, loaded to no more than 80 percent.


Note: Authority cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4409. Testing. Dielectric Strength Test.
(a) The wiring of each commercial coach shall be subjected to a 1-minute, 900- volt, dielectric strength test (with all switches closed) between live parts (including neutral) and the commercial coach ground. Alternatively, the test may be performed at 1,080 volts for 1 second. This test shall be performed after branch circuits are complete and after fixtures or appliances are installed.
Exception: Fixtures or appliances which are approved shall not be required to withstand the dielectric strength test. The test transformer shall be adjustable to permit testing at 900 and 1,080 volts and shall have a rating of at least 50 volt amperes. The test should be performed starting at 0, and the applied potential shall be increased gradually (in at least four steps) until either the test value is reached or breakdown occurs.
(b) 480 Volts. Each commercial coach designed with a 480-volt electrical system shall be subjected to a one-minute 1,275-volt dielectric strength test between current carrying conductors and the coach ground. Alternatively, the test may be performed at 1,500 volts for one second.
(c) Low-Voltage Circuits. Low-voltage circuit conductors in each commercial coach shall withstand the applied potential without electrical breakdown of a one-minute, 500-volt or a one-second, 600-volt dielectric strength test. The potential shall be applied between live and grounded conductors.
Note: The test may be performed on running light circuits before the lights are installed provided the vehicles outer covering and interior cabinetry has been secured. The braking circuit may be tested before being connected to the brakes provided the wiring has been completely secured.









Appendix CC-E-1
Table CC-E-1 Standards for Electrical Equipment and Appliances


Equipment and Appliances UL Standards [FNa1] Other
Equipment

Air Conditioners, Central Cooling............. 465-1978
Armored Cable................................. 4-1974
Attachment Plugs & Receptacles................ 498-1974
Ballasts, Fluorescent-Lamp.................... 935-1978
Battery Chargers.............................. 1236-1972
Cabinets and Boxes............................ 50-1975
Circuit Breakers, Branch-Circuit & Service.... 489-1972
Cleats, Knobs & Tubes, Porcelain.............. 511-1975
Clothes Washing Equipment, Electric........... 1206-1974
Compactors, Trash, Household.................. 1086-1976
Conduit, Flexible Metal....................... 1-1973
Conduit, Liquid-tight, Flex. Steel............ 360-1976
Conduit, Rigid Metallic....................... 6-1976
Conduit, Rigid Nonmetallic.................... 651-1972
Cooking Appliances, Commercial Electric....... 197-1978
Cord Reels.................................... 355-1973
Cord Sets & Power-Supply Cords................ 817-1977
Dishwashers, Commercial....................... 921-1973
Disposers, Waste.............................. 430-1970
Dry Cleaning Machines, Commercial............. 664-1974
Electrical Metallic Tubing.................... 797-1977

Emergency Lighting and Power Equipment........ 924-1977
Engine Generator Assemblies................... 1248-1978 ANSI-A198-
.1-1976
Fans, Electric................................ 507-1972
Fixtures, Electric Lighting................... 57-1972 CSA-C22.2,
#9.1-1954
Fixtures, Electric, Hazardous Locations....... 844-1972
Flexible Cord & Fixture Wire.................. 62-1978
Fuseholders................................... 512-1975
Ground-Fault Circuit Interrupters............. 943-1972
Grounding & Bonding Equipment................. 467-1972
Heaters, Electric............................. 1025-1973
Heaters, Hazardous Location................... 823-1977
Heating Appliances............................ 499-1972
Heating Equipment, Baseboard.................. 1042-1972
Heating Equipment, Central Air................ 1096-1973
Heating Equipment, Commercial................. 795-1973
Home Laundry.................................. 560-1972
Ice Cream Makers.............................. 621-1977
Ice Makers.................................... 563-1975
Industrial Control Equipment.................. 508-1971

Lampholders, Edison-Base...................... 496-1975
Lampholders, Starters & Starter Holders for
Fluorescent Lamps............................. 542-1974
Microwave Cooking Appliances.................. 923-1977
Motor Operated Appliances..................... 73-1972
Motors and Generators......................... 674-1973
Motor......................................... 1004-1977
Nonmetallic-Sheathed Cables................... 719-1974
Office Appliances and Equipment............... 114-1976
Panelboards................................... 67-1974
Power Converters and Systems.................. 458-1977
Power Supplies................................ 1012-1976
Pumps, Heat................................... 559-1975
Raceways & Fittings, Surface Metal............ 5-1978
Ranges........................................ 858-1974
Refrigeration Units........................... 427-1976
Refrigerators & Freezers, Commercial.......... 471-1978
Service Entrance Cables....................... 854-1975
Service Equipment............................. 869-1977
Smoke Detectors, Photoelectric................ 168-1976
Smoke Detectors, Single & Multiple Station.... 217-1976

Switchboard
Switches Enclosed............................. 98-1974
Switches, Snap................................ 20-1974
Switches, Special Use......................... 1054-1977
Tape, Insulating.............................. 510-1976
Transformers, Specialty....................... 506-1977
Tubing, Flexible Nonmetallic.................. 3-1975
Vacuum Cleaning Machines...................... 1017-1973
Vending & Amusement Machines.................. 751-1978
Vending Machines, Refrigerated................ 541-1974
Ventilators, Power............................ 705-1977
Water Coolers................................. 399-1972
Water Heaters................................. 174-1977
Wire Connectors & Soldering Lugs.............. 486-1976
Wires & Cables, Rubber Insulated.............. 44-1977
Wires & Cables, Varnished Cloth............... 133-1976


Equipment and Appliances UL Standards [FNa1] Other
Wires, Asbestos & Asbestos Varnished-Cloth

Insulated................................. 115-1976
Wires, Thermoplastic Insulated............ 83-1975
Wireways, Auxiliary Gutters &
Associated Fittings....................... 870-1977
X-Ray Equipment........................... 187-1974


Notes to Table

ANSI: American National Standards Institute, 1430 Broadway, New York, New York 10017.
Canadian Standards Association Building & Vehicular Products Division, 178 Rexdale Blvd., Rexdale, Ontario, Canada M9W IR3.


Note: Authority Cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4414. Application and Scope.
The provisions of this article relating to mechanical equipment and installations apply to all commercial coaches manufactured after November 23, 1970, and sold, offered for sale, rented or leased within this State. The provisions of this article are also applicable to the alteration or conversion of mechanical equipment and installations in any commercial coach bearing or required to bear a department insignia of approval.
(a) Standards for Equipment and Installations. Standards for equipment and installations are listed in Appendix CC-M-1, Table CC-M-1 of this division. Equipment and installations conforming to these standards or to other approved standards shall be considered acceptable by the department when listed or labeled and installed in accordance with the requirements of this article and the conditions of their approval except where otherwise provided in this article.
(b) Mechanical Standards. Heat-producing appliances and comfort-cooling equipment shall be installed in accordance with the requirements of this article.


Note: Authority cited: Section 18055, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4415. Definitions.
Definitions contained in the Health and Safety Code, Division 13, Part 2 and the following definitions shall apply to this article.
Absorption Unit. A factory-built assembly of component parts designed to produce refrigeration for comfort cooling or comfort heating by the application of heat.
(a) Direct absorption unit is a unit in which the refrigerant evaporator is in direct contact with the air to be conditioned.
(b) Indirect absorption unit is a unit in which the refrigerant evaporator is not in direct contact with the air to be conditioned. Accessible. When applied to a fixture, connection, appliance or equipment, shall mean having access thereto, but which may require the removal of an access panel, door or similar obstruction.
Air-Conditioning or Comfort-Cooling Equipment. All of that equipment intended or installed for the purpose of processing the treatment of air so as to control its temperature, humidity, and distribution to meet the requirements of the conditioned space.
Air-Handling Unit. A blower or fan used for the purpose of distributing conditioned air to a room or space.
Anti-Flooding Device. A primary safety control which causes the liquid fuel flow to be shut off upon a rise in fuel level or upon receiving ex cess fuel, and which operates before a hazardous discharge of fuel can occur.
Appliance is a device which utilizes fuel or other forms of energy to produce light, heat, power, refrigeration or air conditioning. This definition also shall include a vented decorative appliance.
Automatic Pilot Device. A device employed with gas-burning equipment that will either automatically shut off the gas supply to the burner(s) being served or automatically actuate, electrically or otherwise, a gas shutoff device when the pilot flame is extinguished.
Automatic Pump (Oil Lifter). A pump, not an integral part of the oil-burning appliance, that automatically pumps oil from the supply tank and delivers the oil by gravity under a constant head to an oil-burning appliance.
BTU. British thermal unit. The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit.
BTUH. British thermal units per hour.
Chimney, Factory-Built. A chimney consisting entirely of factory-made parts, each designed to be assembled with the others without requiring field construction.

Commercial Food and Heat-Processing Equipment. Equipment and appliances used for food preparation and processing in retail and manufacturing establishments.
Combustible Material. Materials made of or surfaced with wood, compressed paper, plant fibers or other materials that will ignite and burn, even though flameproofed, fire-retardant treated or plastered.
Compressor. A specific machine, with or without accessories, for compressing a given refrigerant vapor.
Condenser. A vessel or arrangement of pipe or tubing in which vaporized refrigerant is liquefied by the removal of heat.
Condensing Unit. A specific refrigerating machine combination for a given refrigerant, consisting of one or more power-driven compressors, condensers, liquid receivers (when required) and the regularly furnished accessories.
Connector-Gas Appliance. A flexible or semi-rigid connector listed as conforming to ANSI Standard Z21.24, Metal Connectors for Gas Appliances, used to convey fuel gas, three feet or less in length (six feet or less for gas ranges), between a gas outlet and a gas appliance in the same room with the outlet.
Dampers include:
Fire Damper is a damper arranged to seal off air flow automatically through part of an air duct system, so as to restrict the passage of heat.
Smoke Damper is a damper arranged to seal off air flow automatically through a part of an air duct system, so as to restrict the passage of smoke.
Volume Damper is any device which when installed will restrict, retard or direct the flow of air in any duct, or the products of combustion in any heat-producing equipment, its vent connector, vent or chimney therefrom.
Direct Gas-Fired Make-Up Air Heater is a heater in which all the products of combustion generated by the gas-burning device are released into the outside air stream being heated.
Direct System is one in which the evaporator is in direct contact with the material or space refrigerated, or is located in air-circulating passages communicating with such spaces.

Direct Vent appliances are appliances which are constructed and installed so that all air for combustion is derived from the outside atmosphere and all flue gases are discharged to the outside atmosphere.
Draft Hood is a device built into an appliance, or made a part of the vent connector from an appliance, which is designed to:
1. Assure the ready escape of the flue gases in the event of no draft, back draft, or stoppage beyond the draft hood.
2. Prevent a back draft from entering the appliance.
3. Neutralize the effect of stack action of the chimney or gas vent upon the operation of the appliance.
Duct. Tube or conduit for conveying air to or from air conditioning or comfort-cooling equipment.
Class 0 Air Ducts. Air duct materials and connectors having a fire-hazard classification of zero.

Class 1 Air Ducts. Ducts of materials and connectors having a flame-spread rating of not over 25 without evidence of continued progressive combustion and a smoke-developed rating of not over 50.
Class 2 Air Ducts. Ducts of materials and connectors having a flame-spread rating of not over 50 without evidence of continued progressive combustion and a smoke-developed rating of not over 50 for the inside surface and not over 100 for the outside surface.
Evaporative Cooler is a device used for reducing the sensible heat of air for cooling, by the process of evaporation of water into an air stream.
Evaporator. That part of the system in which liquid refrigerant is vaporized to produce refrigeration.
Expansion Coil. An evaporator constructed of pipe or tubing.
Fuel Gas Piping System. The arrangement of piping, tubing, fittings, connectors, valves and devices designed and intended to supply or control the flow of fuel gas to the appliance(s).

Fuel Oil Piping System. The arrangement of piping, tubing, fittings, connectors, valves and devices designed and intended to supply or control the flow of fuel oil to the appliance(s).
Furnace -Central Furnace. A self-contained appliance for heating air by transfer of heat to the air, and designed to supply heated air through ducts to spaces remote from or adjacent to the appliance location.
a. Gravity Type Central Furnace. A central furnace depending primarily on circulation of air by gravity.
b. Gravity Type Central Furnace with Integral Fan. A central furnace equipped with a fan or blower as an integral part of its construction and operable on gravity systems only. The fan or blower is used only to overcome the internal furnace resistance to air flow.
c. Gravity Type Central Furnace with Booster Fan. A central furnace equipped with a booster fan which does not materially restrict free circulation of air by gravity flow when the fan is not in operation.

d. Forced Air Type Central Furnace. A central furnace equipped with a fan or blower which provides the primary means for circulation of air.
1. Horizontal Type Central Furnace. A furnace designed for low headroom installation with air flow through the appliance essentially in a horizontal path.
2. Upflow Type Central Furnace. A furnace designed with air flow essentially in a vertical path, discharging air at or near the top of the furnace.
3. Downflow Type Central Furnace. A furnace designed with air flow essentially in a vertical path, discharging air at or near the bottom of the furnace.
Gas. Fuel gas, such as natural gas, manufactured gas, undiluted liquefied petroleum gas (vapor phase only), liquefied petroleum air-gas mixtures or mixtures of these gases which would ignite in the presence of oxygen.
Gas-Supply Connection. The terminal end of the gas-piping system to which a gas-supply connector is attached.
Heating System. A warm-air heating plant consisting of a heat exchanger enclosed in a casing, from which the heated air is distributed through ducts to rooms and areas. A heating system includes the circulating air and conditioned air supply and all accessory equipment installed in connection therewith.
Heat-Producing Appliance. A heating or cooking appliance utilizing fuel or energy.
High Side. The parts of a refrigerating system under condenser pressure.
Hood. Is any air-intake device connected to a mechanical exhaust system for collecting vapors, fumes, smoke, dust, steam, heat or odors from, at or near the equipment, place or area where generated, produced or released.
Industrial Heating Equipment is any appliance, device or equipment used, or intended to be used, in an industrial, manufacturing, or commercial occupancy for applying heat to any material being processed, but shall not include water heaters, boilers or portable equipment used by artisans in pursuit of a trade.
Input Rating. The maximum fuel-burning capacity of any warm-air furnace, heater or burner expressed in British thermal units per hour.

Liquefied Petroleum Gases. "Liquefied petroleum gases," "LPG" and "LP-Gas" is any material which is composed predominantly of any of the following hyrocarbons, or mixtures of them: Propane, propylene, butanes (normal butane or isobutane) and butylenes.
Low Side. The parts of a refrigerating system under evaporator pressure.
Plenum. An air compartment which is part of an air-distributing system to which one or more ducts are connected.
a. Furnace-supply plenum is a plenum attached directly to, or an integral part of, the air-supply outlet of the furnace.
b. Furnace-return plenum is a plenum attached directly to or an integral part of, the return inlet of the furnace.
Quick-Disconnect Device. A hand-operated device which provides a means for connecting and disconnecting an appliance or an appliance connector to a gas supply and which is equipped with an automatic means to shut off the gas supply when the device is disconnected.

Readily Accessible means capable of being reached safely and quickly for operation, repair, or inspection without requiring those to whom ready access is requisite to climb over, or remove obstacles, or to resort to the use of portable access equipment.
Refrigerant. A substance used to produce refrigeration by its expansion or vaporization.
Refrigerating System. A combination of interconnected refrigerant-containing parts constituting one closed refrigerant circuit in which a refrigerant is circulated for the purpose of extracting heat.
Roof Jack. That portion of a heater flue or vent assembly, including the cap, insulating means, flashing and ceiling plate, located in and above the roof.
Vent is a listed factory-made vent pipe and vent fittings for conveying products of combustion from a fuel-burning appliance to the outside atmosphere.
Vent Connector. Any pipe for conveying products of combustion from a fuel-burning appliance to a vent.

Ventilation System is all of that equipment intended or installed for the purpose of supplying air to, or removing air from, any room or space by mechanical means, other than equipment which is a portion of any environmental heating, cooling, absorption or evaporative cooling system.
Water Heater. An appliance designed primarily to supply hot water and is equipped with automatic controls limiting water temperature to a maximum of 210 degrees F.


Note: Authority cited: Section 18022, Health and Safety Code. Reference: Section 18055, Health and Safety Code.









s 4417. General.










s 4418. Standards for Equipment and Installations.










s 4420. LPG, Construction and Marking of Containers.
Containers shall be constructed and marked in accordance with the specifications for LP-Gas containers of the U.S. Department of Transportation (DOT) or the Rules for Construction of Unfired Pressure Vessels, Section VIII, Division 1, ASME Boiler and Pressure Vessel Code. ASME containers shall have a design pressure of not less than 312.5 psig.











s 4421. Location and Installation of Containers and Systems.
(a) No LP-gas container shall be installed, or provision made for installing or storing, even temporarily, inside any commercial coach, except for listed, completely self-contained hand torches, lanterns, or similar equipment with containers having a maximum water capacity of not more than two and one-half pounds (approximately one pound LPG capacity).
(b) Where provided, containers, control valves and regulating equipment shall be mounted on the hitch, installed in a single compartment that is vapor-tight to the inside of the commercial coach and accessible only from the outside or mounted on the frame. Compartments shall be constructed of galvanized steel, not less than 0.0299 inch (0.759 mm) thick. Seams and joints shall be lapped, mechanically secured and made airtight to the interior of the vehicle. Alternate materials and methods of construction may be used if they provide equivalent quality, strength, effectiveness, fire resistance, durability and safety.
Fuel-gas tubing from the gas-supply connection may pass through the wall, floor or ceiling of the compartment. Where such tubing passes through any wall, floor or ceiling, such tubing shall be protected by the use of bulkhead fittings or equivalent devices which shall snugly fit both the tubing and the hole in the compartment through which the tubing passes.
(c) Containers and container carriers shall be securely mounted on the vehicle, or within the compartment and located and installed so as to minimize the possibility of damage to containers, their appurtenances or contents as follows: (continued)