【正文】 ded. It includes a thorough examination of system and ponents and any necessary repair or replacement of system ponents.Manual Operation. Operation of a system requiring human action.Manufacturers Listed Installation and Maintenance Manual. The pamphlet referenced as part of the listing of the wet chemical extinguishing system. Itcontains a description of the hazards that can be protected as well as the limitations of the wet chemical extinguishing system. This pamphlet also requires that the wet chemical extinguishing system be designed, installed, inspected, maintained, and serviced in accordance with this standard.Operating Devices. Mechanical, electrical, or pneumatic devices involved in the operation of a system whether “actuating devices” initiating operation (automatic detection devices or systems and manual actuation devices such as manual pulls or strike buttons) or “operated devices” responding to the actuation (release mechanisms, shutoff devices, alarms, and auxiliary equipment).Owner’ Manual. A pamphlet containing the manufacturer’s remendations for the proper inspection and operation of the extinguishing system.Pipe. Circular conduit for conveying the wet chemical to the discharge nozzle(s). Wherever the term pipe is used in this standard, it shall be understood also to mean tube.PreEngineered Systems. Those having predetermined flow rates, nozzle pressures, and quantities of liquid agent. These systems have the specific pipe size, maximum and minimum pipe lengths, flexible hose specifications, number of fittings, and number and types of nozzles prescribed by a testing laboratory. The maximum and minimum pipe lengths and the number of fittings shall be permitted to be expressed in equivalent feet of pipe. The hazards protected by these systems are specifically limited as to type and size by a testing laboratory, based on actual fire tests. Limitations on hazards that are permitted to be protected by these systems and piping and nozzle configurations are contained in the manufacturer’s listed installation and maintenance manual, which is part of the listing of the system.Recharge. The replacement of the wet chemical and expellant gas.Shall. Indicates a mandatory requirement.Should. Indicates a remendation or that which is advised but not required.Shutoff Devices. Devices that operate simultaneously with the extinguishing system to shut off fuel and power to appliances protected by the system and other appliances required to be shut off upon operation of the system.Signal. A device that provides an audible or visual indication that a response is required.Trained. One who has undergone the instructions necessary to safely design and install and reliably perform the maintenance and recharge service.Transport Canada (TC). Has jurisdiction over design and transportation of pressed gas cylinders and cartridges.. Department of Transportation (DOT). The department that has jurisdiction over the design and transportation of pressed gas cylinders and cartridges.Wet Agent. See Wet Chemical.Wet Chemical.* Normally a solution of water and potassium carbonatebased chemical, potassium acetatebased chemical, potassium citratebased chemical, or a bination thereof that forms an extinguishing agent.16 Units.When a primary value for measurement in English units as given in this standard is followed by a parenthetical equivalent value in metric units, the primary English value stated is to be regarded as the requirement.*Metric units of measurement in this standard are in accordance with the modernized metric system known as the International System of Units (SI).The conversion procedure used for the SI units is to multiply the primary English quantity by the conversion factor and then round the result if necessary to the appropriate number of significant digits.Chapter 2 Components21 General.Only system ponents referenced or permitted in the manufacturer’s listed installation and maintenance manual or alternate ponents that are listed for use with the specific extinguishing system shall be used.22 Detectors.Detectors shall be a listed or approved device that is capable of detecting heat.23 Discharge Nozzles.See Section 35.Discharge nozzles shall be listed for their intended use.Discharge nozzles shall be provided with an internal strainer or a separate listed strainer located immediately upstream of the nozzle.Discharge nozzles shall be of brass, stainless steel, or other corrosionresistant materials, or be protected inside and out against corrosion. They shall be made of nonbustible materials and shall withstand the expected fire exposure without deformation.*Discharge nozzles shall be permanently marked for identification.All discharge nozzles shall be provided with caps or other suitable devices to prevent the entrance of grease vapors, moisture, or other foreign materials into the piping. The protection device shall blow off, open, or blow out upon agent discharge.24 Operating Devices.Operating devices shall be listed.Operating devices shall be designed for the service they will encounter and shall not be rendered inoperative or susceptible to accidental operation.Operating devices shall be designed to function properly through a minimum temperature range from 32176。C) or marked to indicate their temperature limitations. Manual Actuators.Manual actuators shall not require a force of more than 40 lb (178 N) or a movement of more than 14 in. ( cm) to secure operation.All manual actuators shall be provided with operating instructions. These instructions shall be permitted to include the use of pictographs and shall have lettering at least 1/4in. ( mm) in height. (See .)All remote manual operating devices shall be identified as to the hazard they protect. Shutoff Devices.Upon activation of any cooking equipment fire extinguishing system, all sources of fuel and power to al