IEC 60947-7-1:20 09规定了主要用于工业或类似用途并固定在支架上以提供铜导体之间的电气和机械连接的带有螺钉型或无螺钉型夹紧单元的端子板的要求。lt适用于用于连接圆形铜导体的接线端子，无论是否经过特殊处理，横截面在0.2 mm2和300 mm2之间（AWG 24/600 kcmil），用于额定电压不超过1 000 V交流电的电路。高达1 000赫兹或1 500伏直流电。本标准可用作 -需要将特殊装置固定到导体的端子块，例如快速连接终端或缠绕连接等； -端子块，其通过穿透绝缘的边缘或点提供与导体的直接接触，例如绝缘位移连接等。; -特殊类型的接线端子，例如具有二极管或变阻器或类似元件保持器等。 在本标准中适用的情况下，使用术语“夹紧单元”代替术语“端子”。在参考IEC 60947-1的情况下考虑了这一点。自上次发布以来，本标准的主要技术修改如下: -在本标准可用作特殊类型接线端子的指南的范围内增加，例如带有二极管或变阻器或类似元件支架； -制造商要说明的信息列表中5.2中添加的常规自由空气热流； -更新7.1.4，端子板不允许使用绿色-黄色的颜色组合； -在第8条规定的测试序列内的单个测试失败和测试失败的情况下的后果。2; -通过参考IEC 60947-1的附录H替换有关间隙和爬电距离的要求，删除附录A； -改进了试验的拧紧扭矩要求，并删除了IEC 60947-1附录C的表4； -将8.3.3.3中的拔出力参考变更为IEC 60947-1； -8.4.4中改进了电压降测试的措辞； -在8.4.6中改进了短时耐电流试验的措辞； -附录D，增加了测试断开接线端子的附加要求。范围相应修改。 本出版物应与IEC 60947-1:20 07一起阅读。

IEC 60947-7-1:2009 specifies requirements for terminal blocks with screw-type or screwless-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. lt applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0,2 mm² and 300 mm² (AWG 24/600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c. This standard may be used as a guide for
- terminal blocks requiring the fixing of special devices to the conductors, for example quick connect terminations or wrapped connections, etc.;
- terminal blocks providing direct contact to the conductors by means of edges or points penetrating the insulation, for example insulation displacement connections, etc.;
- special types of terminal blocks, for example with diodes or varistors or similar component holders, etc.
Where applicable in this standard, the term "clamping unit" has been used instead of the term "terminal". This is taken into account in case of reference to IEC 60947-1. The main technical modifications of this standard since this previous publication are listed below:
- added in the scope that this standard may be used as a guide for special types of terminal blocks, for example with diodes or varistors or similar component holders;
- the conventional free air thermal current added in 5.2 in the list of information to be stated by the manufacturer;
- update of 7.1.4 that the colour combination green-yellow is not allowed for terminal blocks;
- the consequences in case of failed single tests and failed tests within test sequences specified in 8.2;
- requirements regarding clearances and creepage distances replaced by reference to Annex H of IEC 60947-1, Annex A deleted;
- requirements for tightening torques for the tests improved and referenced to Table 4 of IEC 60947-1, Annex C deleted;
- in 8.3.3.3 changed reference for pull-out force to IEC 60947-1;
- the wording of the test of the voltage drop improved in 8.4.4;
- the wording of the short-time withstand current test improved in 8.4.6;
- Annex D with additional requirements for test disconnect terminal blocks added. The scope modified accordingly.

This publication shall be read in conjunction with IEC 60947-1:2007.