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【英文标准名称】:Medicalanddentalequipment
【原文标准名称】:医疗和牙科设备
【标准号】:UL544-1998
【标准状态】:作废
【国别】:美国
【发布日期】:1998-12-30
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:电医学;电气安全;病人附带电流;医用电气设备;超声波装置;医疗技术学;供氧设备;去纤颤器;牙科设备;外壳;绝缘
【英文主题词】:Defibrillators;Dentalequipment;Electricalmedicalequipment;Electricalsafety;Electromedicine;Enclosures;Insulations;Medicaltechnology;Oxygenbreathingapparatus;Patientauxiliarycurrent;Ultrasonicdevices
【摘要】:Theserequirementscoverelectricmedicalanddentalequipmentthatisintendedforprofessionalusebypersonnelinhospitals,nursinghomes,medicalcarecenters,medicalanddentalofficesandsimilarHealthCareFacilitiesincludingapparatusintendedtobeusedwithoxygen-administeringequipment.TheequipmentcoveredisforuseoninteriorwiringsystemsinaccordancewiththeNationalElectricalCode.Theserequirementscoverportable(cord-connected)equipmentratedat300Vorlessandpermanentlyconnectedequipmentratedat600Vorless.
【中国标准分类号】:C33
【国际标准分类号】:11_040_01;11_060_20
【页数】:119P.;A4
【正文语种】:英语


Product Code:SAE J2315
Title:Wheel Nut Seat Strength
Issuing Committee:Wheel Standards Committee
Scope: The purose of this test is to evaluate the axial strength of the nut seat of wheels intended for use on passenger cars, light trucks, and multipurpose vehicles. In addition, a minimum contact area is recommended to ensure enough strength for the rotational force in tightening a nut against the nut seat. while this test ensures the minimum strength of the nut seat, the wheel must also have a degree of flexibility. this flexibility, as well as bolt tension, are important to maintain wheel retention.
Rationale: The purose of this test is to evaluate the axial strength of the nut seat of wheels intended for use on passenger cars, light trucks, and multipurpose vehicles. In addition, a minimum contact area is recommended to ensure enough strength for the rotational force in tightening a nut against the nut seat. while this test ensures the minimum strength of the nut seat, the wheel must also have a degree of flexibility. this flexibility, as well as bolt tension, are important to maintain wheel retention.