■Related Regulations ■International Unit (SI Unit) ■Valid Term Table/Piping Dimensions ■Gas Meter Selection Methods ■Gas Meter Functions and Measures ■Gas Alarm Installation Place ■Regulator Performance Curve Diagram ■Bulk Storage Unit Installation Standards and Safe Distance ■Bulk Storage Gas Generation Volume ■Introduction to Operation Details in Power Outage and Recovery, by ProductTechnical Information106Applied Regulationsand ScopeItemsSupervising Government OcePermission/NoticationVaporizer-related StandardsVaporizer StandardsDistance to Fire Facilities(In case of cylinder) (Note 1)Distance to Security Items (Note 2)Class 1Class 2Fire Service Actand RegulationsGuidelines for SelectionRemarksLess than 3,000 kgMore than 5 mMore than 3,000 kgMore than 8 mCylinder: more than16.97 mBulk storage unit: more than 7.0 mMore than16.97 mCylinder: more than 11.31 mBulk storage unit: more than 7.0 mLess than 1,000 kgMore than 2 mCylinder: NoneBulk storage unit: more than 1.5 mCylinder: NoneBulk storage unit: more than 1.0 mMore than11.31 mGeneral Consumer etc.ConsumingFacilitiesSupplyFacilitiesSpecic Supply FacilitiesCapacity: more than 3,000 kgBulk Storage Unit: more than 1,000 kgLess than 3,000 kgMore than 3,000 kgPrefectural governorHigh Pressure Gas ConsumerHigh Pressure Gas Producer (class 1)High Pressure Gas Security ActLiqueed Petroleum Gas ActCommunity Gas EntrepreneurGas Business ActSpecic supply facilities permissionHigh PressureGas ConsumingFacilitiesSpecic HighPressure GasConsuming FacilitiesClass 1ManufacturingFacilitiesClass 2ManufacturingFacilitiesSpecic GasGeneratingFacilitiesDirector of bureau of economy,trade and industryCommunity gas business permissionBulk supply auxiliary equipment certiedby High Pressure Gas Safety Institute of JapanMust pass the specic facility inspectionand minister permission(Reference)－－More than 8 mMore than 16.97 mMore than 11.31 m－－When the LP gas of more than 300 kg, other than enumerated in Liqueed Petroleum Gas Act 87 (1), High Pressure Gas Safety Act 74 (1), and Gas Business Act 47-3 (1), is installed, dangerous article notication shall be submitted to the responsible re department according to the Fire Service Act 9 (2).Construction to be used for storing or processing 3,500 kg in residential area, 7,000 kg in commercial area, and 35,000 kg in light industrial area is not allowed. However, certain exception may apply when the specic administrative government (governor) admit that it is harmless for residential environment or that it is unavoidable considering the public utility.Building Standards Actand RegulationsSelect a model that has capacity for generating 1.5 times or more of the gas demand at maximum peak in a yearConstruction begins after permission is given. Facilities cannot be used before passing the inspection. Installation of gas related constructions or business commencement must be notied to the industrial security supervising department in the area.Construction begins after permission is given. Facilities cannot be used before passing the inspection. Beginning of production must be notied to the prefectural governor without delay.Notication must be submitted to the prefectural governor 20 days or earlier before starting production.Construction begins after permission is given. Facilities cannot be used before passing the inspection. Notication must be submitted to the prefectural governor 20 days or earlier before starting consumption.－Construction begins after permission is given. Facilities cannot be used before passing the inspection.Notication must be submitted to the prefectural governor for the storage facility construction of school, hospital, and apartment complex exceeding the capacity of 500 kg, after the construction is complete.Calculate the maximum gas consumption per hour, and select a model that has capacity for generating 1.2 times or more of the maximum gas consumption.(Maximum gas consumption is the total consumption per a unit of time.)（Note 1) This may be the horizontal bypass distance made by creating reproof walls to prevent the leak gas ow.（Note 2) The distance may be shortened by creating barriers to the target securing items.The distance may be shortened by creating structural walls in the case where the storage facility in use is the bulk storage unit.(Reference) Use of re and piles of ammable objects is prohibited within 5 meters around the storage facility, etc.(A) Shall be consuming type evaporators.(B) Shall not have the structure in which LP gas is heated by re directly.(C) Shall have the performance passing the pressure tightness test with 2.6 MPa.(D) Shall have the apparatus for preventing outow of LP gas.(E) Shall contain the countermeasure for preventing the freezing at the hot water section for those devices that heats LP gas by hot water and that are installed in cold region.(A) Shall be consuming type evaporators.(A) According to liqueed gas security regulations 6 (1), (17), and (18).(A) Shall not have the structure in which gas is heated by re directly.(B) Shall not be the mixer type.(C) Shall have an apparatus for preventing LP gas outow.Notication and permission for high pressure gas storage, notication for specic high pressure gas consumptionHigh pressure gasmanufacturing sitepermissionHigh pressure gasmanufacturing sitenoticationRelated Regulations(Note-1) Horizontal detour distance can be established by building reproof walls and taking measures to prevent the ow of leaked gas.(Note-2) Distance can be reduced by building barrier walls relative to security properties. If the storage equipment is a bulk storage unit, then the distance can be reduced by building a structural wall.(Reference) Use of re and stacking of ammable objects within a 5 meter radius of storage equipment is prohibited.Related InformationGas MetersRegulatorsTechnical DocumentsBulks / VaporizersControllers /Shutoff ValvesAlarmsHoses / Gas CocksTechnical Information
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