FORMAT
BOOKS
PACKAGES
EDITION
PUBLISHER
CONTENT TYPE
Act
Admin Code
Announcements
Bill
Book
CADD File
CAN
CEU
Charter
Checklist
City Code
Code
Commentary
Comprehensive Plan
Conference Paper
County Code
Course
DHS Documents
Document
Errata
Executive Regulation
Federal Guideline
Firm Content
Guideline
Handbook
Interpretation
Journal
Land Use and Development
Law
Legislative Rule
Local Amendment
Local Code
Local Document
Local Regulation
Local Standards
Manual
Model Code
Model Standard
Notice
Ordinance
Other
Paperback
PASS
Periodicals
PIN
Plan
Policy
Product
Product - Data Sheet
Program
Provisions
Requirements
Revisions
Rules & Regulations
Standards
State Amendment
State Code
State Manual
State Plan
State Standards
Statute
Study Guide
Supplement
Sustainability
Technical Bulletin
All
|
Description of BS 6353:1983 1983This British Standard specifies requirements for underground loudspeaker communication systems that are equipped with the facility for connecting speech and other audio signals to another loudspeaker communication system and/or to an appropriate surface switchboard to form a loudspeaker communication network. Electrical input and output characteristics of underground loudspeaker communication systems necessary to achieve operational compatibility when they are interconnected are specified. The requirements for tone signals specified in clause 5 do not apply to signals that are not transmitted to another system. This standard is applicable to underground loudspeaker communication systems that are intended to be certified intrinsically safe for use in coal mines in accordance with BS 5501-9 for group I category “ia” systems. This standard is not applicable to mine telephone systems.
Specifies electrical interface characteristics, interconnection facilities, tone signals and transmission distance.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
GROUPS
|