产品展示
联系我们
联系人:麦女士
手机:+86 15270269218
电话:
Q Q:3136378118
邮箱:stodcdcs@gmail.com
地址:江西省九江市瑞昌市东益路23号赛湖农商城401号
IIMKM01
分离形式是指配电盘内提供的细分类型。通过屏障或隔墙(金属或绝缘)进行的隔离可能具有以下功能:-在接入配电盘未通电部分的情况下,相对于保持通电的配电盘的其余部分,提供防止直接接触的保护(至少IPXXB);-降低启动或传播内部电弧的风险;-阻止固体在配电盘不同部件之间通过(防护等级至少为IP2X)。隔板是两部分之间的隔离元件,而屏障保护操作员免受直接接触和正常访问方向上任何中断设备的电弧影响。标准IEC 61439-1-2中的下表突出显示了使用屏障或隔板可获得的典型分离形式:母线与功能单元不分离母线与功能单元分离以及所有功能单元彼此分离。外部导体端子与功能单元的分离,但不能相互分离母线与功能单元的分离以及所有功能单元之间的分离,包括作为功能单元不可分割的一部分的外部导体端子次标准外部导体端子未与母线分离外部导体端子与母线分离外部导体端子未与母线分离外部导体端子与母线分离外部导体端子作为外部导体相关功能单元端子的隔间与相关功能单元不在同一隔间内,而是在单独、独立、封闭的受保护空间或隔间内。表格1表格2a表格2b表格3a表格3b表格4a表格4b



IIMKM01
By form of separation it is meant the type of subdivision provided within the switchboard. Separation by means of barriers or partitions (metallic or insulating) may have the function to: - provide protection against direct contact (at least IPXXB) in the case of access to a part of the switchboard which is not live, with respect to the rest of the switchboard which remains live; - reduce the risk of starting or propagating an internal arc; - impede the passage of solid bodies between different parts of the switchboard (degree of protection of at least IP2X). A partition is a separation element between two parts, while a barrier protects the operator from direct contact and from arcing effects from any interruption devices in the normal access direction. The following table from Standard IEC 61439-1-2 highlights typical forms of separation which can be obtained using barriers or partitions:No separation Separation of busbars from the functional units Separation of busbars from the functional units and separation of all functional units from one another. Separation of the terminals for external conductors from the functional units, but not from each other Separation of busbars from the functional units and separation of all functional units from one another, including the terminals for external conductors which are an integral part of the functional unit Subcriteria Terminals for external conductors not separated from busbars Terminals for external conductors separated from busbars Terminals for external conductors not separated from busbars Terminals for external conductors separated from busbars Terminals for external conductors in the same compartment as the associated functional unit Terminals for external conductors not in the same compartment as the associated functional unit, but in individual, separate, enclosed protected spaces or compartments Form Form 1 Form 2a Form 2b Form 3a Form 3b Form 4a Form 4b
相关产品