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    接線端子識(shí)別標(biāo)準(zhǔn)

    2013/12/19 8:28:26      點(diǎn)擊:

    本標(biāo)準(zhǔn)等效采用國(guó)際標(biāo)準(zhǔn)IEC455(1988)《設(shè)備接線端子和特定導(dǎo)線線端的識(shí)別及應(yīng)用字母數(shù)字系統(tǒng)的通則》。
    適用范圍

    本標(biāo)準(zhǔn)規(guī)定了識(shí)別電器設(shè)備(以下簡(jiǎn)稱設(shè)備)接線端子的各種方法,并制訂了以字母數(shù)字系統(tǒng)識(shí)別設(shè)備接線端子和特定導(dǎo)線線端的通則。
    本標(biāo)準(zhǔn)適用于設(shè)備(如電阻器、熔斷器、繼電器、接觸器、變壓器、旋轉(zhuǎn)電機(jī)等)和這些設(shè)備的組合體的接線端子的識(shí)別標(biāo)記,也適用于特定導(dǎo)線線端的識(shí)別。
    必要時(shí),這些通則對(duì)某些產(chǎn)品的詳細(xì)應(yīng)用和必要的輔助識(shí)別方法可在有關(guān)的標(biāo)準(zhǔn)中給出。
    引用標(biāo)準(zhǔn)

    GB 4728 電氣圖用圖形符號(hào)
    GB5465 電氣設(shè)備用圖形符號(hào)
    識(shí)別方法

    可采用下列一種或多種方法識(shí)別設(shè)備接線端子和特定導(dǎo)線線端。
    3.1 采用相關(guān)產(chǎn)品的標(biāo)記系統(tǒng)來(lái)確定和識(shí)別設(shè)備接線端子或特定導(dǎo)線線端的實(shí)際或相對(duì)位置。
    3.2 采用相關(guān)產(chǎn)品的標(biāo)記系統(tǒng)來(lái)確定和識(shí)別設(shè)備接線端子和特定導(dǎo)線線端的顏色標(biāo)記。
    3.3 采用GB5465中規(guī)定的圖形符號(hào)。若需采用輔助符號(hào),應(yīng)與GB4728中的圖形一致。
    3.4采用本標(biāo)準(zhǔn)第5章中規(guī)定的字母數(shù)字符號(hào)。
    應(yīng)用

    顏色、圖形符號(hào)或字母數(shù)字符號(hào)應(yīng)標(biāo)注在相應(yīng)的線端或鄰近處。
    當(dāng)采用兩種以上的識(shí)別方法,并可以能出現(xiàn)混淆時(shí),這兩種識(shí)別方法的相互關(guān)系必須在有關(guān)文件中說(shuō)明。
    系統(tǒng)通則

    5.1 基本原則
    5.1.1 字母數(shù)字系統(tǒng)由大寫正體拉丁字母和阿拉伯?dāng)?shù)字構(gòu)成。
    5.1.2標(biāo)志直流元件的字母從字母表的前半部分即A至M中選用,標(biāo)志交流元件的字母從字母表的后半部分即N至Z中選用。
    字母“I”和“O”不能使用,符號(hào)“+”和“-”可以使用。
    5.1.3 當(dāng)不致產(chǎn)生混淆時(shí),允許省略第5.2條中規(guī)定的完整字母數(shù)字符號(hào)的某些部分。
    5.2 標(biāo)記原則
    端子標(biāo)記以下列原則為基礎(chǔ):
    5.2.1 單個(gè)元件的兩個(gè)端子用連續(xù)的兩個(gè)數(shù)字來(lái)區(qū)別,奇數(shù)數(shù)字應(yīng)小于偶數(shù)數(shù)字,例如1和2。
    5.2.2 單個(gè)元件的中間各端子用數(shù)字來(lái)區(qū)別,最好用自然遞增數(shù)序的數(shù)字。例如:3,4,5等。中間各端子數(shù)字選用大于兩邊端子的數(shù)字,并應(yīng)從靠近較小數(shù)字的端子處開始標(biāo)志,例如一個(gè)兩邊端子為1和2的元件的中間各端子用3,4,5等數(shù)字標(biāo)志。
    兩個(gè)兩邊端子和兩個(gè)中間端子
    5.2.3 如果幾個(gè)相似的元件組合成一組,各個(gè)元件的端子可以接下列方法標(biāo)志:
    a. 在5.2.1和5.2.2條中所規(guī)定的數(shù)字前冠以字母的方法來(lái)區(qū)分兩邊端子和中間各端子,例如:
    用U、V、W標(biāo)志三相交流系統(tǒng)中設(shè)備的各相端子;
    b. 不需要或不可能識(shí)別相位時(shí),在5.2.1和5.2.2條中所規(guī)定的數(shù)字前冠以數(shù)字的方法來(lái)區(qū)分兩邊端子和中間各端子。為避免混淆,在這些數(shù)字中間加入一個(gè)圓點(diǎn),例如:一個(gè)元件的端子用1.1和1.2標(biāo)志,另一個(gè)元件的端子用2.1和2.2標(biāo)志;
    c.每一元件的兩端子以不同的連續(xù)數(shù)字來(lái)區(qū)別,該元件的奇數(shù)數(shù)字應(yīng)小于偶數(shù)數(shù)字。

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