Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
BS 376-2-TC:2020
Năm ban hành 2020
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Tracked Changes (Redline) - Railway signalling symbols – Part 2: Specification for symbols for circuit diagrams
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 157
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard This British Standard specifies the symbols to be used on railway signalling circuit diagrams but does not provide guidance on their application. It also gives a standard system of nomenclature and labelling of wires such that each wire can be readily identified with that shown on the circuit diagram. This British Standard does not cover symbols for high voltage power distribution, telecommunications or electronic products. These are covered in IEC 60617 or an appropriate British Standard. This British Standard does not include proprietary systems and specialized applications. NOTE 1 The symbols in this British Standard provide for apparatus in general use. Wiring symbols have been designed so that they can be combined together where one does not represent the complete device. In this British Standard, where certain elements are added for illustrative purposes, they are shown by dashed lines. If additional information is required to support the symbol, a "#" may be used to reference a note on the diagram. NOTE 2 The size of symbols as drawn are in proportion but are not necessarily relative to one another; nor do they give the specific size to be used. The relative thickness of lines may also be varied, e.g. for contact elements. |