IEC 60947-7-4 Ed. 2.0:2019 (b)
低電圧開閉装置及び制御装置－第7-4部：補助機器－銅導体用のPCB端子ブロック
Low-voltage switchgear and controlgear - Part 7-4: Ancillary equipment - PCB terminal blocks for copper conductors
発行年月日：
2019-01-18
状態：
有効
邦訳版：
無
英語 71ページ
58,630 円（税込） 本体価格：53,300円
- 規格概要
-
IEC 60947-7-4:2019 is available as IEC 60947-7-4:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60947-7-4:2019 specifies requirements for PCB terminal blocks primarily intended for industrial or similar use. Mounting and fixing on the printed circuit board is made by soldering, press-in or equivalent methods to provide electrical and mechanical connection between copper conductors and the printed circuit board. This document applies to PCB terminal blocks intended to connect copper conductors, with or without special preparation, having a cross-section between 0,08 mm2 and 300 mm2 (AWG 28-600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V AC up to 1 000 Hz or 1 500 V DC. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:a) additional test for PCB terminal blocks with clamping units, where contact pressure is transmitted through insulating materials;b) tightening torques for screws now given in Table 4 of this document (previously given in Table 4 of IEC 60947-1:2007); tightening torques added for an additional type of screw;c) new criteria for verification of contact resistance introduced;d) clarification in the description of the temperature-rise test (current-temperature derating); corrections in the test sequence according to Figure 4.全文を表示する
| TC |
TC 121/SC 121A |
|---|---|
| ICS |
29.130.20 |
| 備考 |
