【正文】 mm) through air or over surface. The insulation and clearances between that circuit and a higher potential circuit shall be in accordance with the requirements that are applicable to the higher potential circuit. 電壓不超過(guò) 50V時(shí) ,現(xiàn)場(chǎng)接線端子的空氣間電氣間隙距離至少為 ，表面的電氣間隙至少為 ；其它位置的空氣中或表面的電氣間隙至少為 。F) higher than its normal operating temperature in the device, and not less than 65176。同樣見(jiàn) 。m) torque value. 例外：有原料壓成的接線板有厚度的最小要求，可以使金屬壓出內(nèi)螺紋孔以配 合螺釘達(dá)到 2個(gè)全螺紋的要求，除非螺紋不符合 2個(gè)全螺紋。 The free length of a field wiring lead shall be at least 6 inches (152 mm). 現(xiàn)場(chǎng)接線引線的自由長(zhǎng)度至少應(yīng)為 152mm 13 WireBinding Screw Terminals接線螺釘 A wirebinding screw terminal is acceptable only for field wiring of a 10 AWG ( mm2) or smaller wire. The wire binding screw terminal shall consist of clamps or binding screws with terminal plates having upturned lugs or the equivalent to hold the wire in position. 接線螺釘只有 或以下時(shí)使用。 10 Wiring Terminals 接線端子 Terminal parts by which connections are made shall restrict connections from loosening even under hard usage. 接線端應(yīng)避免松動(dòng)或粗略利用。 d) Lug。 or c) The over surface spacings between the uninsulated live parts are at least 1/2 inch ( mm). 特例六：若沒(méi)有 CTI PLC 值或高于表 的要求值，則材料無(wú)需符合 I的要求，當(dāng) a) 材料符合高分子材料標(biāo)準(zhǔn)中指明的成品特殊電弧測(cè)試要求 電氣設(shè)備評(píng)估，UL746C b) 材料的 HVTR PLC 值不高于 1,或 c) 導(dǎo)電零件表面間距最小 1/2 inch ( mm) Table 略 Insulating material, including barriers between parts of opposite polarity or material, subject to the influence of the arc formed by the opening of contacts, shall be acceptable for the particular application. 絕緣材料，包括相反極性的零部件之間的隔 擋 ，可能受到 觸頭 斷開(kāi)時(shí) 產(chǎn)生 的電弧的影響，應(yīng) 可 用于特定應(yīng)用。 Exception No. 1: A generic material with a Relative Thermal Index (RTI) as shown in Relative Thermal Indices Based Upon Past FieldTest Performance and Chemical Structure, Table of the Standard for Polymeric Materials ? Use in Electrical Equipment Evaluations, UL 746C that is not exceeded during the Temperature Test, Section 16, and is provided in such a thickness that damage does not result from tests required by this Standard, is considered suitable for the direct support of uninsulated live parts. 例外一：材料 具有相對(duì)熱指標(biāo) RTI,如基于先前現(xiàn)場(chǎng)測(cè)試、化學(xué)結(jié)構(gòu)及表 所示高分子材料標(biāo)準(zhǔn)。 The requirements of apply to all housings and to all springs and other parts upon which proper mechanical operation may depend. It does not apply to small minor parts of iron or steel such as washers, screws, bolts, and the like that are not currentcarrying, or to other parts where the malfunction of such unprotected parts would not be likely to result in a risk of fire, electric shock or personal injury. Parts made of stainless steel, properly polished or treated if necessary, do not require additional protection against corrosion. 的 要求適用于所有封裝、彈簧 以及 其他 的 機(jī)械運(yùn)轉(zhuǎn)所 必須 零件，而不適用于諸如墊圈、螺母 、 螺釘 和類(lèi)似的 不載 流 小零件，或故障不至于 起火 、電擊、人 身傷害的其他零件。 本標(biāo)準(zhǔn) 所涵蓋產(chǎn)品之 零部件需符合的 標(biāo)準(zhǔn)參見(jiàn)附錄 A 。 SHUNT TRIP PROTECTOR － A protector with a trip mechanism energized by a separate source of voltage or current that may be derived from the main contact circuit or from an independent source. The trip mechanism may be either of the overcurrent type or the voltage actuated type. 分勵(lì)脫扣保護(hù) 器 ： 由另一 電流或電壓 觸動(dòng)從而 脫扣的保護(hù)器，該電流或電壓 可以來(lái)自主接觸電路或獨(dú)立來(lái)源。 The acceptability of a protector in any particular application depends upon its ability to be used continuously under the conditions that prevail in actual service. Accordingly, for a particular application a protector may be affected by the requirements for the equipment it is used in, and it may be necessary to additionally evaluate features or performance characteristics that are not specified in this standard. 任意特定應(yīng)用下的保護(hù)器 的 可接受性取決于其 實(shí)際 使用狀況下持續(xù)工作 的能力 。 Devices which ensure a manual restart due to the plete loss of voltage are covered by the Standard for SolidState Controls for Appliances,UL244A. 由于完全失去電壓而手動(dòng)復(fù)位的的裝置，使用 UL244A。也可用手動(dòng)方式斷開(kāi)或閉合電路。 Specific ponents are recognized as being inplete in construction features or restricted in performance capabilities. Such ponents are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions for which they have been recognized. 特殊部件是結(jié)構(gòu)特征不完全或表現(xiàn)性能受限的。 除了 瓷 、酚類(lèi)物質(zhì) 或不對(duì) 載 流 部件 起固定作用的 材料， 其它都 應(yīng)以實(shí)際運(yùn)作狀況檢驗(yàn)其性能，以此判定它有沒(méi)有所需的電 氣的 、機(jī)械 的 和 可 燃 的 性 能（除非用于特殊用途） 。 Exception No. 3: A material without an HAI PLC value or with an HAI PLC value greater (worse) than the value required by Table that plies with the Overload test, Section 17, Endurance, Section 18 and Dielectric VoltageWithstand, Section 19, need not ply with the HAI requirements of . 特例三：若沒(méi)有 HAI PLC 值或高于表 的要求值（該值符合 17 章過(guò)載測(cè)試，18 章耐壓測(cè)試， 19 章絕緣絕壓測(cè)試的要求），則材料無(wú)需符合 中對(duì) HAI的要求。 Currentcarrying parts, including terminals, shall be secured to their supporting surfaces so that they are restricted from rotating or shifting in position when such motion results in reduction of spacings to less than those required elsewhere in this Standard. The security of contact assemblies shall be such as to provide for the continued alignment of contacts. 對(duì)載流部件，包括接線端子的支撐件應(yīng)嚴(yán)格要求，不可使載流部件旋轉(zhuǎn)或移位從而造成電氣間隙減小至標(biāo)準(zhǔn)要求以下。 or g) Some other equivalent method. 表面之間的摩擦不應(yīng)是唯一限制載流部件移動(dòng)的途徑。 12 Wiring Leads 引線 Field wiring leads to be connected to a power circuit shall not differ from the wire size that would correspond to the rating of the protector by more than two sizes. The wire size shall not be smaller than 14 AWG ( mm2). 接于供電電路的現(xiàn)場(chǎng)接線引線，不應(yīng)比保護(hù)器額定電流對(duì)應(yīng)的線號(hào)大 2號(hào)。除非 預(yù)期接線為 或更小時(shí)，可選用 直徑的。 A multipole protector with one manually operated actuating member shall be so constructed that all poles make and break simultaneously, when operated manually or automatically. 有一個(gè)手動(dòng)操作機(jī)構(gòu)的多極保護(hù)器，在手動(dòng)或自動(dòng)操作時(shí)，應(yīng)能使所有同時(shí)極通斷。