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配電箱按結(jié)構(gòu)特征和用途分類:
Distribution boxes are classified according to their structural characteristics and uses:
1、固定面板式開(kāi)關(guān)柜，常稱開(kāi)關(guān)板或配電屏。它是一種有面板遮攔的開(kāi)啟式開(kāi)關(guān)柜，正面有防護(hù)作用，背面和側(cè)面仍能觸及帶電部分，防護(hù)等級(jí)低，只能用于對(duì)供電連續(xù)性和可靠性要求較低的工礦企業(yè)，作變電室集中供電用。
1, fixed panel switchgear, often referred to as switchboard or distribution panel. It is an open switch cabinet with panel shield. The front side has protective effect. The back and side can still touch the live part. The protection grade is low. It can only be used in industrial and mining enterprises which require low power supply continuity and reliability.
2、防護(hù)式(即封閉式)開(kāi)關(guān)柜，指除安裝面外，其它所有側(cè)面都被封閉起來(lái)的一種低壓開(kāi)關(guān)柜。這種柜子的開(kāi)關(guān)、保護(hù)和監(jiān)測(cè)控制等電氣元件，均安裝在一個(gè)用鋼或絕緣材料制成的封閉外殼內(nèi)，可靠墻或離墻安裝。柜內(nèi)每條回路之間可以不加隔離措施，也可以采用接地的金屬板或絕緣板進(jìn)行隔離。通常門與主開(kāi)關(guān)操作有機(jī)械聯(lián)鎖。另外還有防護(hù)式臺(tái)型開(kāi)關(guān)柜(即控制臺(tái))，面板上裝有控制、測(cè)量、信號(hào)等電器。防護(hù)式開(kāi)關(guān)柜主要用作工藝現(xiàn)場(chǎng)的配電裝置。
2. Protective (i.e. closed) switchgear refers to a kind of low-voltage switchgear with all sides closed except the installation surface. The switching, protection, monitoring and control electrical components of the cabinet are all installed in a closed enclosure made of steel or insulating material, which can be reliably mounted on or off the wall. Each circuit in the cabinet can be separated without isolation measures, or can be separated by grounded metal plates or insulation plates. Usually, the door has mechanical interlocking with the main switch. In addition, there are protective desktop switchgear (that is, the console), the panel is equipped with control, measurement, signal and other electrical appliances. The protective switchgear is mainly used as the power distribution device at the process site.
3、抽屜式開(kāi)關(guān)柜。這類開(kāi)關(guān)柜采用鋼板制成封閉外殼，進(jìn)出線回路的電器元件都安裝在可抽出的抽屜中，構(gòu)成能完成某一類供電任務(wù)的功能單元。功能單元與母線或電纜之間，用接地的金屬板或塑料制成的功能板隔開(kāi)，形成母線、功能單元和電纜三個(gè)區(qū)域。每個(gè)功能單元之間也有隔離措施。抽屜式開(kāi)關(guān)柜有較高的可靠性、安全性和互換性，是比較先進(jìn)的開(kāi)關(guān)柜，生產(chǎn)的開(kāi)關(guān)柜，多數(shù)是抽屜式開(kāi)關(guān)柜。它們適用于要求供電可靠性較高的工礦企業(yè)、高層建筑，作為集中控制的配電中心。
3. Drawer type switchgear. This kind of switch cabinet is made of steel plate enclosed shell, and the electrical components in and out of the circuit are installed in the drawer which can be pulled out to form a functional unit which can complete a certain type of power supply task. Between the function unit and the bus bar or cable, the function board made of grounded metal or plastic is separated to form three areas: the bus bar, the function unit and the cable. There are isolation measures between each functional unit. Drawer type switch cabinet has higher reliability, safety and interchangeability, is a more advanced switch cabinet, the production of switch cabinet, mostly drawer type switch cabinet. They are suitable for industrial and mining enterprises and high-rise buildings which require high reliability of power supply, and they are used as centralized control distribution centers.
4、動(dòng)力、照明配電控制箱。多為封閉式垂直安裝。因使用場(chǎng)合不同，外殼防護(hù)等級(jí)也不同。它們主要作為工礦企業(yè)生產(chǎn)現(xiàn)場(chǎng)的配電裝置。
4. Power and lighting distribution control box. Mostly for closed vertical installation. Because of the different use occasions, the shell protection level is also different. They are mainly used as distribution devices for production sites of industrial and mining enterprises.