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工業退火鋁導線檢測項目報價???解決方案???檢測周期???樣品要求? |
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本標準給出了GB/T 1179-2017及NB/T 42060-2015中涉及的架空導線的性能及其計算方法,包括:——導線載流量:計算方法和典型示例;——交流電阻、感抗和容抗;——導線伸長:熱和應力-應變數據;——導線蠕變;——由于高溫引起的鋁線強度損失;——導線成盤的大長度計算。本標準未包含計算導線性能的所有方法和理論,但給出了具有一定準確度的簡單方法。本標準適用于GB/T 1179-2017及NB/T 42060-2015中涉及的架空導線的相關性能計算。
本規范適用于750kV及以下母線裝置安裝工程的施工及驗收。
本規范適用于煤礦建設電氣設備安裝工程的施工及驗收。
本導則適用于水力發電廠所有電氣裝置和設施的接地設計。
1.1 These requirements cover self-contained drinking-water coolers which employ hermetic refrigerantmotor-compressors and which are designed for connection to alternating-current circuits rated not greaterthan 600 volts in accordance with the National Electrical Code, NFPA 70. The requirements also apply towater coolers which supply both hot and cold water.1.2 These requirements do not include additional requirements applicable to equipment designed for usein hazardous locations as defined in the National Electrical Code, NFPA 70.1.3 A product that contains features, characteristics, components, materials, or systems new or differentfrom those covered by the requirements in this standard, and that involves a risk of fire, electric shock, orinjury to persons shall be evaluated using the appropriate additional component and end-productrequirements as determined necessary to maintain the acceptable level of safety as originally anticipatedby the intent of this standard. A product whose features, characteristics, components, materials, orsystems conflict with specific requirements or provisions of this standard cannot be judged to comply withthis standard. Where considered appropriate, revision of requirements shall be proposed and adopted inconformance with the methods employed for development, revision, and implementation of this standard.
1.1 These requirements cover ballasts of the resistance, reactance, and electronic (high frequency) types for use with fluorescent lamps involving a potential of 2500 volts or less in accordance with the National Electrical Code, ANSI/NFPA 70.1.2 A fluorescent-lamp ballast may be determined by investigation to be acceptable for use, in a fixtureor other device, with electric-discharge lamps of other than the fluorescent type.1.3 Fluorescent self ballasted lamps and ballast adaptors are evaluated using the Standard forSelf-Ballasted Lamps and Lamp Adapters, UL 1993. The component ballast is evaluated to requirementsin this Standard.1.4 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shockor injury to persons shall be evaluated using appropriate additional component and end-productrequirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.
These requirements cover robots and robotic equipment rated 600 V or less and intended for installation in accordance with the National Electrical Code, ANSI/NFPA 70. Since end-use installation of a robot and robotic equipment may vary for each user application, guidelines for end-product installation may be evaluated to the applicable sections of ANSI/RIA R15.06, Standard for Industrial Robots and Robot Systems-Safety Requirements. Portions of the requirements in this Standard have been excerpted from the Robotic Industries Associations (RIA) Standard for Industrial Robots and Robot Systems - Safety Requirements, ANSI/RIA R15.06. These requirements cover robotic equipment and systems intended for indoor and outdoor use in applications such as parts assembly, parts transfer, automated material handling, inspection, loading, diecasting, deburring, welding, paint spraying, clinical/diagnostic systems, pharmaceutical applications, commercial food processing, automated vehicle refueling systems, library book handling/sorting, clean room applications, medical use for surgery, mobile robots, automated guided vehicles, automated storage/retrieval systems, and the like. Unique features or functions associated with the robotic application, not specifically addressed in this Standard, shall also be evaluated to other applicable Standards/requirements. These may include, but are not limited to, Electrical Equipment for Laboratory Use; Part 1: General Requirements, UL 3101-1; Medical and Dental Equipment, UL 544; Power Operated Pumps for Petroleum Product Dispensing Systems, UL 79. In addition to the requirements in this Standard, robots and robotic systems shall also comply with the applicable sections of the Electrical Standard for Industrial Machinery, ANSI/NFPA 79. Robots and robotic systems intended for use in hazardous locations, as defined by the National Electrical Code ANSI/NFPA 70, shall also comply with the requirements in Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classified) Locations, UL 913. In the following text, a requirement that applies to one type of equipment, such as a controller or teach pendant, will be identified by a specific reference. In the absence of a specific reference or if the term robot or robotic equipment is employed, it is to be understood that the requirement applies to all types of equipment covered by this Standard.
These requirements cover inverters ,converters ,charge controllers ,and output controllers intended for use in stand-alone(not grid connected) or utility-interactive (grid-connected) power systems .Utility-interactive inverters and converters are intended to be installed in parallel with an electric supply system or an electric utility to supply common loads.
This Standard applies to commercial annealed aluminium electrical conductor wire having a diameter greater than 1 mm (0.3094 in.).
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