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光纜布線和組件檢測(cè)項(xiàng)目報(bào)價(jià)???解決方案???檢測(cè)周期???樣品要求? |
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本部分給出了光纖通信系統(tǒng)(OFCS)的安全運(yùn)行、維護(hù)要求和具體指南。在OFCS中,光功率可以達(dá)到發(fā)射設(shè)備限制以外或距光源很遠(yuǎn)的距離處。本部分規(guī)定了OFCS中的光可達(dá)位置的危險(xiǎn)等級(jí)的評(píng)估,替代了依據(jù)GB 7247.1中激光產(chǎn)品的分類。本部分適用于完整安裝的端到端OFCS,包括其能夠產(chǎn)生或放大光輻射的部件和組件。那些僅面向OEM供應(yīng)商銷售的,用于集成到完整安裝的端到端OFCS中的獨(dú)立部件和組件不必按照本部分進(jìn)行評(píng)估,因?yàn)榻K的OFCS本身須按照本部分進(jìn)行評(píng)估。本部分不適用于以傳輸激光功率為主的光纖系統(tǒng),例如在材料加工或醫(yī)療領(lǐng)域的應(yīng)用等。除了由激光輻射造成的危害外,OFCS也可能引起其他危害,如火災(zāi)。本部分不涉及OFCS在易爆環(huán)境中的爆炸或火災(zāi)等安全事項(xiàng)。本部分中提及的“激光”包括發(fā)光二極管(LED)和光放大器。本部分的目的是:——保護(hù)人員免受由OFCS引起的光輻射危害;——對(duì)制造商、安裝方、檢修方和運(yùn)營(yíng)商提出要求,需制定工作步驟和提供相關(guān)信息,以便采取正確的預(yù)防措施;——通過使用符號(hào)、標(biāo)牌和指示,確保對(duì)人員提供充分的警示,以防止OFCS潛在的危害。更詳細(xì)的必要性參見附錄A。OFCS的安全依賴于組成系統(tǒng)的設(shè)備特性。因此可能需要在產(chǎn)品上標(biāo)明安全的相關(guān)信息或?qū)⒋祟愋畔ㄔ谑褂谜f明書中。根據(jù)潛在的危險(xiǎn)等級(jí)的要求,OFCS的安全措施和運(yùn)行責(zé)任由安裝方或終用戶/運(yùn)營(yíng)商承擔(dān)或雙方共同承擔(dān)。本部分將安裝和檢修操作期間遵守安全指示的責(zé)任賦予相應(yīng)的安裝方和檢修方,而運(yùn)行和維護(hù)的職責(zé)在終用戶或運(yùn)營(yíng)商。本部分的用戶可能屬于上述制造商、安裝方、終用戶或運(yùn)營(yíng)商范圍中的一方或多方。
GB/T 18233的本部分規(guī)定了工業(yè)建筑內(nèi)或其他類型建筑內(nèi)工業(yè)區(qū)的通用布纜,或者園區(qū)內(nèi)的單個(gè)或多個(gè)建筑物。包括平衡布纜和光纖布纜。本部分主要適用于電信服務(wù)距離10 000 m內(nèi)的建筑群。更大距離的系統(tǒng)可參考使用。本部分定義的布纜系統(tǒng)支持廣泛的服務(wù),包括自動(dòng)化、過程控制和監(jiān)控應(yīng)用。也包括供電服務(wù)。本部分直接或通過引用ISO/IEC 11801-1:2017規(guī)定:a) 工業(yè)建筑群通用布纜系統(tǒng)的結(jié)構(gòu)和低配置;b) 電信插座(TO)端口;c) 布纜鏈路和信道的傳輸性能要求;d) (對(duì))實(shí)現(xiàn)的要求和選項(xiàng);e) 布纜組件性能要求;f) 符合性要求和驗(yàn)收程序。自動(dòng)化區(qū)域中的關(guān)鍵自動(dòng)化、過程和監(jiān)控應(yīng)用服務(wù)的布纜不在本部分規(guī)定范圍內(nèi)。此類特定應(yīng)用布纜的信息見IEC 61784-5(設(shè)計(jì))和IEC 61918(安裝)。安全(電氣安全和防護(hù)、防火等)和電磁兼容(EMC)要求由其他標(biāo)準(zhǔn)和法規(guī)規(guī)定,不包括在本部分的范圍內(nèi)。但本部分給出的信息有助于符合這些標(biāo)準(zhǔn)和規(guī)范。
GB/T 21714的本部分提出了以下要求:通過采用雷電防護(hù)裝置(LPS)來防止建筑物的物理損壞、避免LPS附近因接觸和跨步電壓而引起的生命危險(xiǎn)。本部分適用于:a) 任意高度建筑物的LPS設(shè)計(jì)、安裝、檢查和維護(hù);b) 對(duì)接觸和跨步電壓引起的人身危害提供保護(hù)措施。
本標(biāo)準(zhǔn)規(guī)定了工業(yè)環(huán)境中及工業(yè)現(xiàn)場(chǎng)的自動(dòng)化島內(nèi)和島間的通信網(wǎng)絡(luò)媒體安裝的基本要求。本標(biāo)準(zhǔn)包括對(duì)稱線纜布線和光纖布線,以及無線媒體的布線設(shè)施,但不包括無線媒體本身。其他媒體見IEC 61784-5系列標(biāo)準(zhǔn)。本標(biāo)準(zhǔn)是工業(yè)自動(dòng)化島通信網(wǎng)絡(luò)的配套標(biāo)準(zhǔn),尤其是對(duì)IEC 61158系列和IEC 61784系列標(biāo)準(zhǔn)中規(guī)定的通信網(wǎng)絡(luò)。此外,本標(biāo)準(zhǔn)還包括:——ISO/IEC 24702中規(guī)定的工業(yè)環(huán)境電信綜合布線的安裝;——ISO/IEC 24702中規(guī)定的電信綜合布線與自動(dòng)化島的特定布線之間的連接,其中,用自動(dòng)化引出端(AO)代替ISO/IEC 24702的電信引出端(TO)。本標(biāo)準(zhǔn)提供解決工業(yè)自動(dòng)化領(lǐng)域關(guān)鍵問題(拓?fù)?、氣候條件、振動(dòng)、化學(xué)污染、EMC、功能安全、信息安全等)的指南。本標(biāo)準(zhǔn)為設(shè)計(jì)者、安裝者、驗(yàn)證者和驗(yàn)收測(cè)試人員、管理和維護(hù)人員分配任務(wù)、規(guī)定和相應(yīng)職責(zé),并且/或者給予指導(dǎo)。
本標(biāo)準(zhǔn)規(guī)定了小船電氣系統(tǒng)的設(shè)計(jì)、建造、安裝和試驗(yàn)要求。本標(biāo)準(zhǔn)適用于內(nèi)河和海上航行的船長(zhǎng)不大于50m或總登記噸不超過500GRT的小船。本標(biāo)準(zhǔn)不適用于僅用蓄電池為發(fā)動(dòng)機(jī)啟動(dòng)和航行燈供電的小船,該蓄電池是由船內(nèi)或船外驅(qū)動(dòng)發(fā)動(dòng)機(jī)的交流發(fā)電機(jī)充電。本標(biāo)準(zhǔn)適用于下列單獨(dú)或組合的直流和交流電氣系統(tǒng):a)額定電壓不超過50V直流系統(tǒng);b)額定電壓不超過250V單相交流系統(tǒng);c)額定電壓不超過1000V的三相交流系統(tǒng)。
本條是編制本標(biāo)準(zhǔn)的目的。本標(biāo)準(zhǔn)僅限于施工質(zhì)量的驗(yàn)收,工程立項(xiàng)決策階段、勘察設(shè)計(jì)階段和使用中的質(zhì)量問題不屬于本標(biāo)準(zhǔn)的范疇。本次修編將有關(guān)地下鐵道工程的驗(yàn)收標(biāo)準(zhǔn)與施工標(biāo)準(zhǔn)分開,組成新的工程質(zhì)量驗(yàn)收體系,以統(tǒng)一地下鐵道工程質(zhì)量的驗(yàn)收方法、程序和質(zhì)量標(biāo)準(zhǔn)。
本標(biāo)準(zhǔn)規(guī)定了光伏(PV)發(fā)電系統(tǒng)所使用光伏并網(wǎng)逆變器的產(chǎn)品類型、技術(shù)要求及試驗(yàn)方法。本標(biāo)準(zhǔn)適用于連接到PV源電路電壓不超過直流1500V,交流輸出電壓不超過1000V的光伏并網(wǎng)逆變器。集成升壓變壓器并網(wǎng)至35kV及以下電壓等級(jí)電網(wǎng)的預(yù)裝式光伏并網(wǎng)逆變裝置可參照?qǐng)?zhí)行。
本標(biāo)準(zhǔn)規(guī)定了艦船電子裝備的通用修理流程和技術(shù)要求,包括一般要求、修理級(jí)別、修理工程范圍、修理流程及要求、檢查和驗(yàn)收等。 本標(biāo)準(zhǔn)適用于艦船雷達(dá)、聲納、電子對(duì)抗、通信和情報(bào)指揮等電子裝備的修理和檢查驗(yàn)收。
This standard will encompass two levels of interface, defining operation overdistances less than 10 m. The physical layer will specify electrical, mechanical, and thermalcharacteristics of connectors and cards. The logical level will describe the address space,data transfer protocols, cache coherence mechanisms, synchronization primitives, control andstatus registers, and initialization and error recovery facilities.
Broadband optical access systems based on Passive Optical Networks (PON) Covering Note: 03/16/2006
Applies to low-voltage landscape lighting systems and components that may consist of an isolating type power unit, wiring, and luminaire. Only covers equipment where the maximum output of each secondary circuit is 25 A, 15 V ac (21.2 V peak) open circuit voltage, 300 VA. The luminaires intended for garden, walkway, patio areas, or similar outdoor locations and for certain indoor locations such as atriums and shopping malls. The power units may be installed indoors or outdoors. The equipment is intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70.
This International Standard specifies the general, and some of the special, requirements on materials used for the construction of equipment used in gas welding, cutting and allied processes.
The purpose of this Technical Report is to be a first guideline for those considering to install a high bandwidth (high bit-rate) FTTx-network. After studying the Technical Report operators, communities, energy companies, installers and others will understand the necessary steps to take to plan and install FTTx-networks with high quality and cost effectiveness, and to secure a uniform structure and a high quality level on such networks.
The document provides instructions on the methods to be used when installing, repairing or modifying aircraft electrical and optical fibre interconnection systems, subject to the limitations defined in 4 of this document.
This standard specifies the list of test fluids to be used to demonstrate that components and subassemblies will not be adversely affected by contamination by fluids types that they may typically be exposed to. The fluids listed are representative of those commonly used and encountered in airborne and ground operations, and align with the requirements of fluids susceptibility of ISO 7137. This shall not be considered an exhaustive list and additional test fluids may be instructed in the product standard, against which compliance needs to be demonstrated. This standard, when used in conjunction with the test requirements defined in Clause 6 or the product standard shall be considered the starting point to test a component to determine its minimum performance capability when exposed to the fluids listed. Test results obtained from a number of sources over a considerable period of time have shown that, in many cases, widely varying results can be obtained when using fluids that are used in service. The practice of specifying fluids based on performance criteria rather than their constituents can mean variations in test results between batches of the fluid obtained from different manufacturers, or even from the same manufacturer. For this reason the EN 3909 Standard recommends the use of \"standard test fluids\" which are specified by their constituents and contain the chemicals that may be found in commonly used fluids. Where equipment may be exposed to fluid types that are not covered by Table 1 or where specific test fluids are considered to be necessary, the product standard shall identify the particular fluid required. If a manufacturer chooses to include additional test fluids (e. g. to satisfy a customer requirement), they do so at their own risk.
This standard specifies the general characteristics, the conditions for qualification, acceptance and qualityassurance, as well as the test programs and groups for rectangular multipin fibre optic connectors.