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**************公司非生产性工业项目低压配电箱采购招标文件招标单位：********************有限公司招标时间：二******* 年月日投标须知前附表：序号内容说明及要求1 项目名称***********公司非生产性工业项目2 项目地点*********3 建设规模***********4 招标范围施工图范围内的低压配电箱采购5 承包方式包工、包料、包工期、包安全、包质量6 资金来源企业自筹7 工程工期日内生产完毕并送至现场。
8 工程质量达到合格标准9 领取标书时间201*年月日10 投标有效时间投标截止日后30日内有效11 投标文件份数正本壹份，副本壹份12 投标文件递交地点本工程施工现场甲方办公室13 投标截止时间201*年月日下午5时前第二章招标说明一、工程名称、工程地点、招标内容祥见前附表。
二、投标文件的组成(1)投标书(2)投标报价明细表(按招标人指定的开关品牌分别报价)(3)产品单价分析表 (招标人指定的配电箱)(4)产品使用说明书(5)产品的技术服务和售后服务的内容及措施(6)资格证明文件(7)质量认证证书(8)业绩表(9)其他承诺和优惠条件(10)投标人承诺使用年限(11)投标人认为适宜的其他元器件注：投标文件内容要求真实，在评标以及中标后的实施过程中，如果招标人发现投标人提供了弄虚作假的资料，将被没收其所有保证金取消其供货资格，并不作任何经济补偿，不作任何解释。
三、投标报价3.1投标人应在投标报价明细表中准确标明所供产品的单价、合价和总报价。
3.2投标报价明细表分项报出的品种、规格、、单价、合价和总价，如果单价与总报价不符，以单价为准。
3.3每种规格的产品报价均应包含产品费、包装费、保险费、税费、检验费、运输费、装卸费、工厂检验费、安装指导服务费、技术服务费、成品保护费、以及各类规费。
四、投标人可以在递交投标文件以后，在规定的投标截止时间之前，以书面形式向招标人递交修改或撤回其投标文件的通知在投标截止时间以后、投标有效期内不能撒回或更改其投标文件。
CZ.CZLB-EX.11（S）-3.7/15.05使用说明书电涌保护器(SPD)CZLB系列本安型使用产品前请仔细阅读本使用说明书，并请妥善保管辰竹官方微信地址:上海市民益路201号漕河泾开发区松江新兴产业园6号楼邮编:201612 总机：021-******** 传真：021-********销售服务：021-******** 技术支持：400 881 0780邮箱：chenzhu @chenzhu -inst .com拆卸接线54导线W 4mm≤221.0mm<S<2.5mm 8mm L 10mm≤≤ 32(1)仪表接线为M3螺丝接线端子,可通过导轨直接接地;22 (2)导线采用截面积1.0mm ～2.5mm 多束或单股电缆; (3)导线裸露长度约为8mm，由M3螺钉锁紧。
接线操作示意如下图:安装CZLB系列SPD均采用DIN35mm导轨安装方式。
安装步骤如下:(1)把仪表底部下端金属件卡在导轨上; (2)把仪表底部上端金属件推进导轨;(3)建议使用铜制导轨，不易氧化影响防护性能。
(1)用一字螺丝刀（刀口宽度≤6mm）插入仪表底部凹槽内; (2)螺丝刀如图中所示方向向下压,将仪表底部金属导轨卡件向上撬起;(3)仪表向下拉出导轨。
维护(1)使用SPD时必须有可靠的接地。
(2)SPD进行通电调试前，必须再次检查输入端与输出端的接线是否正确。
(3)产品在出厂前均经过严格检验和质量控制，如发现工作不正常，怀疑内部模块有故障，请及时与本公司联系。
(4)产品从发货之日起五年以内，正常使用过程中出现产品质量问题均由本公司免费维修。
概述主要技术参数漏电流电压保护水平Up（线对线）电压保护水平Up（线对地）40V 60V 600V600V5VDC 6VDC 额定工作电压Un 最大工作电压Uc CZLB-5-EX(T2)CZLB-5-EX(R3)<3uA <1uA 型号参数命名方式外形尺寸123CZLB-24-EX(B2)CZLB-24-EX(B3)24VDC 32VDC 典型应用危险区安全区CZLB - □ - □ (□ □)CZLB系列SPD2：二线制3：三线制额定工作电压 空：通用型EX：本安型 B：变送器 R：热电阻 T：通讯接地布线注：PD 线连起来，并在SPD接地点连到大地。
Dimensions: [mm]71610749118201274911820127491182012T e m p e r a t u r eT T T 7491182012Cautions and Warnings:The following conditions apply to all goods within the product series of WE-UNIT ofWürth Elektronik eiSos GmbH & Co. KG:General:•This electronic component is designed and manufactured for use in general electronic equipment.•Würth Elektronik must be asked for written approval (following the PPAP procedure) before incorporating the components into any equipment in fields such as military, aerospace, aviation, nuclear control, submarine, transportation (automotive control, train control, ship control), transportation signal, disaster prevention, medical, public information network, etc. where higher safety and reliability are especially required and/or if there is the possibility of direct damage or human injury.•Electronic components that will be used in safety-critical or high-reliability applications, should be pre-evaluated by the customer.•The component is designed and manufactured to be used within the datasheet specified values. If the usage and operation conditions specified in the datasheet are not met, the wire insulation may be damaged or dissolved.•Do not drop or impact the components, as the component may be damaged.•Würth Elektronik products are qualified according to international standards, which are listed in each product reliability report. Würth Elektronik does not warrant any customer qualified product characteristics beyond Würth Elektronik's specifications, for its validity and sustainability over time.•The responsibility for the applicability of the customer specific products and use in a particular customer design is always within the authority of the customer. All technical specifications for standard products also apply to customer specific products.Product specific:Soldering:•The solder profile must comply with the technical product specifications. All other profiles will void the warranty.•All other soldering methods are at the customers’ own risk.Cleaning and Washing:•Washing agents used during the production to clean the customer application might damage or change the characteristics of the wire insulation, marking or plating. Washing agents may have a negative effect on the long-term functionality of the product. Potting:•If the product is potted in the customer application, the potting material might shrink or expand during and after hardening. Shrinking could lead to an incomplete seal, allowing contaminants into the core. Expansion could damage the component. We recommend a manual inspection after potting to avoid these effects.Storage Conditions:• A storage of Würth Elektronik products for longer than 12 months is not recommended. Within other effects, the terminals may suffer degradation, resulting in bad solderability. Therefore, all products shall be used within the period of 12 months based on the day of shipment.•Do not expose the components to direct sunlight.•The storage conditions in the original packaging are defined according to DIN EN 61760-2.•The storage conditions stated in the original packaging apply to the storage time and not to the transportation time of the components. Handling:•Violation of the technical product specifications such as exceeding the nominal rated current will void the warranty.•Applying currents with audio-frequency signals may result in audible noise due to the magnetostrictive material properties.•Due to heavy weight of the components, strong forces and high accelerations may have the effect to damage the electrical connection or to harm the circuit board and will void the warranty.•The temperature rise of the component must be taken into consideration. The operating temperature is comprised of ambient temperature and temperature rise of the component.The operating temperature of the component shall not exceed the maximum temperature specified.These cautions and warnings comply with the state of the scientific and technical knowledge and are believed to be accurate and reliable.However, no responsibility is assumed for inaccuracies or incompleteness.Würth Elektronik eiSos GmbH & Co. KGEMC & Inductive SolutionsMax-Eyth-Str. 174638 WaldenburgGermanyCHECKED REVISION DATE (YYYY-MM-DD)GENERAL TOLERANCE PROJECTIONMETHODCHC004.0012021-01-20DIN ISO 2768-1mDESCRIPTIONWE-UNIT Off-Line TransformerORDER CODE7491182012SIZE/TYPE BUSINESS UNIT STATUS PAGEImportant NotesThe following conditions apply to all goods within the product range of Würth Elektronik eiSos GmbH & Co. KG:1. General Customer ResponsibilitySome goods within the product range of Würth Elektronik eiSos GmbH & Co. KG contain statements regarding general suitability for certain application areas. These statements about suitability are based on our knowledge and experience of typical requirements concerning the areas, serve as general guidance and cannot be estimated as binding statements about the suitability for a customer application. The responsibility for the applicability and use in a particular customer design is always solely within the authority of the customer. Due to this fact it is up to the customer to evaluate, where appropriate to investigate and decide whether the device with the specific product characteristics described in the product specification is valid and suitable for the respective customer application or not.2. Customer Responsibility related to Specific, in particular Safety-Relevant ApplicationsIt has to be clearly pointed out that the possibility of a malfunction of electronic components or failure before the end of the usual lifetime cannot be completely eliminated in the current state of the art, even if the products are operated within the range of the specifications.In certain customer applications requiring a very high level of safety and especially in customer applications in which the malfunction or failure of an electronic component could endanger human life or health it must be ensured by most advanced technological aid of suitable design of the customer application that no injury or damage is caused to third parties in the event of malfunction or failure of an electronic component. Therefore, customer is cautioned to verify that data sheets are current before placing orders. The current data sheets can be downloaded at .3. Best Care and AttentionAny product-specific notes, cautions and warnings must be strictly observed. Any disregard will result in the loss of warranty.4. Customer Support for Product SpecificationsSome products within the product range may contain substances which are subject to restrictions in certain jurisdictions in order to serve specific technical requirements. Necessary information is available on request. In this case the field sales engineer or the internal sales person in charge should be contacted who will be happy to support in this matter.5. Product R&DDue to constant product improvement product specifications may change from time to time. As a standard reporting procedure of the Product Change Notification (PCN) according to the JEDEC-Standard inform about minor and major changes. In case of further queries regarding the PCN, the field sales engineer or the internal sales person in charge should be contacted. The basic responsibility of the customer as per Section 1 and 2 remains unaffected.6. Product Life CycleDue to technical progress and economical evaluation we also reserve the right to discontinue production and delivery of products. As a standard reporting procedure of the Product Termination Notification (PTN) according to the JEDEC-Standard we will inform at an early stage about inevitable product discontinuance. According to this we cannot guarantee that all products within our product range will always be available. Therefore it needs to be verified with the field sales engineer or the internal sales person in charge about the current product availability expectancy before or when the product for application design-in disposal is considered. The approach named above does not apply in the case of individual agreements deviating from the foregoing for customer-specific products.7. Property RightsAll the rights for contractual products produced by Würth Elektronik eiSos GmbH & Co. KG on the basis of ideas, development contracts as well as models or templates that are subject to copyright, patent or commercial protection supplied to the customer will remain with Würth Elektronik eiSos GmbH & Co. KG. Würth Elektronik eiSos GmbH & Co. KG does not warrant or represent that any license, either expressed or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, application, or process in which Würth Elektronik eiSos GmbH & Co. KG components or services are used.8. General Terms and ConditionsUnless otherwise agreed in individual contracts, all orders are subject to the current version of the “General Terms and Conditions of Würth Elektronik eiSos Group”, last version available at .Würth Elektronik eiSos GmbH & Co. KGEMC & Inductive SolutionsMax-Eyth-Str. 174638 WaldenburgGermanyCHECKED REVISION DATE (YYYY-MM-DD)GENERAL TOLERANCE PROJECTIONMETHODCHC004.0012021-01-20DIN ISO 2768-1mDESCRIPTIONWE-UNIT Off-Line TransformerORDER CODE7491182012SIZE/TYPE BUSINESS UNIT STATUS PAGE。
电涌保护器（SPD）工作原理和结构电涌保护器（SPD）是一种用于保护电气设备不受电涌（过电压）损坏的装置。
电涌保护器的工作原理是通过限制与分散电涌能量来保护设备免受电涌的影响。
电涌保护器主要由以下几个部分组成：保护元件、排气管、限流元件和接线端子。
保护元件是电涌保护器最关键的部分，它是根据特定的电压和电流条件下工作的元件，能够在受到电涌冲击时迅速响应并分散电涌能量。
排气管是负责将电压引导到地线的部分，它能够将电涌引导到大地中去。
限流元件是用来限制电流流过装置的元件，防止电流过大而损坏保护元件。
接线端子则是用于连接电涌保护器与电路的部分。
电涌保护器的工作原理可以分为两个阶段：导电阶段和隔离阶段。
在导电阶段，当电涌进入电涌保护器时，保护元件立即响应，并开始导电。
保护元件可以是可变电阻、元件间的气隙等。
这些保护元件的电性能能够使电涌电流经过它们而不损坏设备。
电涌保护器还会将电流引导到排气管中，通过排气管将电压引导到地线。
这一过程能够迅速降低电压，保护设备免受电涌的影响。
在隔离阶段，电涌保护器将设备与电网之间隔离，防止电涌通过电涌保护器进一步传导到设备上。
这样，即使电涌再次出现，也不会对设备造成损害。
隔离阶段的关键部分是限流元件，它可以限制电流流过电涌保护器，防止电流过大而损坏保护元件。
电涌保护器的结构可以根据其使用场合和功能的不同而有所不同。
一般来说，电涌保护器通常由金属外壳、保护元件、排气管、限流元件和接线端子组成。
金属外壳是用来保护内部元件不受外界的影响，防止受到物理损坏。
保护元件是电涌保护器的核心部分，它可以是采用不同材料制成的元件，如气体放电管、压敏电阻等。
排气管是用来将电压引导到大地中去的部分，一般由金属材料制成，可以承受较大的电流和电压。
限流元件是用来限制电流流过电涌保护器的部分，防止电流过大而损坏保护元件。
接线端子则是用于连接电涌保护器与电路的部分，它可以是螺钉、插座等形式。
总而言之，电涌保护器通过限制和分散电涌能量来保护设备免受电涌损坏。
电涌保护器(SPD)工作原理和结构电涌保护器(SUrgeprotectionDeViCe)是电子设备雷电防护中不可缺少的一种装置，过去常称为“避雷器”或“过电压保护器”英文简写为SPDC电涌保护器的作用是把窜入电力线、信号传输线的瞬时过电压限制在设备或系统所能承受的电压范围内，或将强大的雷电流泄流入地，保护被保护的设备或系统不受冲击而损坏。
电涌保护器的类型和结构按不同的用途有所不同,但它至少应包含一个非线性电压限制元件。
用于电涌保护器的基本元器件有：放电间隙、充气放电管、压敏电阻、抑制二极管和扼流线圈等。
一、SPD的分类：1、按工作原理分：1 .开关型：其工作原理是当没有瞬时过电压时呈现为高阻抗，但一旦响应雷电瞬时过电压时，其阻抗就突变为低值，允许雷电流通过。
用作此类装置时器件有：放电间隙、气体放电管、闸流晶体管等。
2 .限压型：其工作原理是当没有瞬时过电压时为高阻扰，但随电涌电流和电压的增加其阻抗会不断减小，其电流电压特性为强烈非线性。
用作此类装置的器件有：氧化锌、压敏电阻、抑制二极管、雪崩二极管等。
3 .分流型或扼流型分流型：与被保护的设备并联，对雷电脉冲呈现为低阻抗，而对正常工作频率呈现为高阻抗。
扼流型：与被保护的设备串联，对雷电脉冲呈现为高阻抗，而对正常的工作频率呈现为低阻抗。
用作此类装置的器件有：扼流线圈、高通滤波器、低通滤波器、1/4波长短路器等。
按用途分：(1)电源保护器：交流电源保护器、直流电源保护器、开关电源保护器等。
(2)信号保护器：低频信号保护器、高频信号保护器、天馈保护器等。
二、SPD的基本元器件及其工作原理：1 .放电间隙(又称保护间隙)：它一般由暴露在空气中的两根相隔一定间隙的金属棒组成,其中一根金属棒与所需保护设备的电源相线Ll或零线(N)相连，另一根金属棒与接地线(PE)相连接，当瞬时过电压袭来时，间隙被击穿，把一部分过电压的电荷引入大地，避免了被保护设备上的电压升高。
海格断路器nb116a参数海格断路器NB116A参数介绍NB116A型海格断路器是一种低压保护设备，广泛应用于住宅、商业和工业建筑中的电力系统中。
它具有可靠的过载和短路保护功能，可有效保护电气设备和人身安全。
下面将对NB116A型海格断路器的参数进行详细介绍。
1. 额定电流（In）：NB116A型海格断路器的额定电流范围为1A至63A。
额定电流是指断路器能够持续工作的最大电流值，超过该值会触发断路器的保护机制。
2. 额定电压（Ue）：NB116A型海格断路器的额定电压为230/400V。
额定电压是指断路器能够正常工作的电压范围，超过该范围可能会导致断路器失效或损坏。
3. 极数（Poles）：NB116A型海格断路器有1P、1P+N、2P、3P 和3P+N几种极数选项。
极数是指断路器内部的电极数量，不同的极数适用于不同的电路配置。
4. 短路切断能力（Icu）：NB116A型海格断路器的短路切断能力为6kA。
短路切断能力是指断路器在发生短路时能够切断电路的能力，保护电气设备和人身安全。
5. 额定断电能力（Ics）：NB116A型海格断路器的额定断电能力为4.5kA。
额定断电能力是指断路器在正常运行状态下可以切断的最大故障电流。
6. 额定开断能力（Icn）：NB116A型海格断路器的额定开断能力为6kA。
额定开断能力是指断路器在正常操作状态下可以安全开断的最大电流。
7. 动作特性（Trip Characteristics）：NB116A型海格断路器有B、C和D三种动作特性可选。
不同的动作特性适用于不同的负载类型，可提供不同的过载和短路保护。
8. 隔离功能（Isolation Function）：NB116A型海格断路器具有可靠的隔离功能，可以切断电气设备与电源之间的连接，确保维修和检修工作的安全进行。
9. 使用寿命（Mechanical Endurance）：NB116A型海格断路器的使用寿命为20000次。
