Standard No.:	GB 7251.3-2006
English Name:	Low-voltage switchgear and controlgear assemblies—Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskille
Chinese Name:	低压成套开关设备和控制设备 第3部分:对非专业人员可进入场地的低压成套开关设备和控制设备——配电板的特殊要求
Chinese Classification:	K31    Low-voltage distribution electrical equipment
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2006-08-25
Implemented on:	2007-3-1
Status:	superseded
Superseded by:	GB/T 7251.3-2017 Low-voltage switchgear and controlgear assemblies-Part 3:Distribution boards intended to be operated by ordinary persons ( DBO)
Superseded on:	2018-5-1
Superseding:	GB 7251.3-1997 Low-voltage switchgear and controlgear assemblies--Part 3: Particular requirements for low-voltage switchgear and controlgear assemblies intended to be installed in places where unskilled persons have access for their use-Distribution boards
Target Language:	English
File Format:	PDF
Word Count:	5000 words
Translation Price(USD):	120.0
Delivery:	via email in 1 business day

The content below replaces the note: This part stipulates the supplementary requirements for close type distributing board. This distributing board is with the protective devices. Internal fixed installation type-tested assemblies (TTA) are suitable for civil use (domestic) or to be used by non-professionals in the field. Distributing board can also include controlgear and /or signaling device. They are used for AC and the nominal voltage to earth it no less than 300V. If input total load current is less than 250 A, rated current included in short circuit protector of output circuit is not less than 125A. Note: nominal voltage to earth of IT system can be the nominal voltage if this system. Under normal conditions, non-professionals can approach this type of equipment, for example, operating the switch or replace molten wire.