【正文】 , hood, and branch duct systems, one or more of which also protect the mon exhaust duct. [See Figure (a).]Upon operation of these systems, fuel or power to all protected cooking appliances served by the mon exhaust duct shall be shut off.(b) * Simultaneous operation of all systems that protect only the mon exhaust duct. [See Figure (b).]Upon operation of the mon exhaust duct systems, the fuel or power to all protected cooking appliances served by the mon exhaust duct shall be shut off.(c) * Independent operation of systems protecting only the mon exhaust duct.Each system shall protect a portion of the mon exhaust duct so that the entire mon exhaust duct is protected. [See Figure (c).] Each mon exhaust duct system shall protect the entire downstream mon exhaust duct.Upon operation of any mon duct system, fuel or power to all protected cooking appliances served by that portion of the mon exhaust duct shall be shut off.(d) * Independent operation of cooking appliance, hood, and branch duct systems where one of these systems protects the entire mon exhaust duct. [See Figure (d).]Upon operation of the cooking appliance, hood, and branch duct systems that also protect the mon exhaust duct, the fuel or power to all protected cooking appliances served by the mon exhaust duct shall be shut off.Upon operation of any system not protecting the mon exhaust duct, only the cooking appliances protected by that system shall be shut off, provided these systems have sufficient fire hazard separation so that simultaneous operation of an additional system or systems shall not be required.(e) * Independent operation of cooking appliance, hood, and branch duct systems, with two or more of these systems also protecting the mon exhaust duct. [See Figure (e).]Upon operation of a cooking appliance, hood, and branch duct systems that protect a portion of the mon exhaust duct, the fuel or power to all protected cooking appliances served by that portion of the mon exhaust duct shall be shut off.Each mon exhaust duct system shall provide protection for the largest mon exhaust duct downstream of each system.Upon operation of a cooking appliance, hood, and branch duct systems that do not protect a portion of the mon exhaust duct, only the fuel or power to the cooking appliances protected by that system shall be shut off.Simultaneous operation of another cooking appliance, hood, and branch duct system shall not be required, provided there is sufficient fire hazard separation between hoods and adjacent branch ducts. (See .)(f) * Independent operation of a bination of1. A system that protects only a portion of the mon exhaust duct2. Cooking appliance, hood, and branch duct systems, two or more of which protect the remainder of the mon exhaust ducts. [See Figure (f).]Upon operation of any system, the fuel or power to all protected cooking appliances served by the portion of the mon exhaust duct being protected shall be shut off.In (b) through (f), simultaneous operation, a fusible link or heat detector shall be located at each branch duct to mon duct connection. Actuation of any branch duct to mon exhaust duct fusible link or heat detector shall actuate the system protecting that portion of the mon duct and shut off fuel or power to all protected hazards connected to that portion of the mon exhaust duct.Movable cooking equipment shall be provided with a means to ensure that it is correctly positioned in relation to the appliance discharge nozzle during cooking operations.Chapter 4 Plans and Acceptance Tests41* Specifications.Specifications for wet chemical fire extinguishing systems shall be drawn up with care under the supervision of a trained person and with the advice of the authority having jurisdiction. To ensure a satisfactory system, the following items shall be included in the specifications.The specifications shall(a) Designate the authority having jurisdiction and indicate whether plans are required(b) State that the installation conforms to this standard and meets the approval of the authority having jurisdiction(c) Indicate that only equipment that is referenced in the manufacturer’s listed installation and maintenance manual or alternate suppliers’ ponents that are listed for use with the specific extinguishing system shall be usedException: Special auxiliary devices acceptable to the system manufacturer and the authority having jurisdiction.(d) Include the specific tests, if any, that are required(e) Indicate the hazard to be protected and include such information as physical dimensions, cooking appliances, energy sources for each appliance, and airhandling equipment42 Plans.Where plans are required, the responsibility for their preparation shall be entrusted only to trained persons.The plans shall be drawn to an indicated scale or be suitably dimensioned and shall be reproducible.The plans shall contain sufficient detail to enable the authority having jurisdiction to evaluate the protection of the hazard(s).The details on the system shall include the size, length, and arrangement of connected piping and the description and location of nozzles so that the adequacy of the system can be determined. Information shall be submitted pertaining to the location and function of detection devices, operating devices, auxiliary equipment, and electrical circuitry, if used. Approval of Plans.Where plans are required, they shall be submitted to the authority having jurisdiction for approval before work starts.Where field conditions necessitate any substantial change from the approved plan, the asinstalled plans shall be submitted to the authority having jurisdiction for approval.43 Approval of Installations.The pleted system shall be tested by trained personnel as required by the manufacturer’s listed installation and maintenance manual. The tests shall determine that the system has been properly installed and will function as intend