IS 5820 -1970 Code Book PDF free download
This Indian Standard was adopted by the Indian Standards Institution on 22 August 1970, after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council. Precast reinforced and reinforced concrete covers are used for covering cables with a view to give a warning of the presence of an underground electric cable and also to protect cables against blows from excavating tools. This standard has been Formulated to provide guidance in the manufacture and use of the above cable covers. 1 The cable rovers have been classified based. upon the description’ and condition where the above covers are normally used. The use of reinforced concrete covers is recommended mainly for locations where dangers from pick-axing are not significant and in situations of secondary importance. This standard does not cover the interlocking cable covers. In the formulation of this standard due weight age has been given to international co-ordination among the standards and practices prevailing in different countries in addition to relating it to the practices in the field in this country. This has been met by deriving assistance from B.S. 2484 : 1961 ‘ Specification for cable covers ( concrete and earthen ) ‘, published by the British Standards Institution.For the purpose of deciding whether a particular requirement of this standard is complied with the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : 2-1960*. The number of significant places retained .in the rounded off value should be the same as that of the specified value in this standard.
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