BS 5834-2:2011

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and grading
5 Materials
6 Frames for combination units
7 Fasteners
8 Dimensions and design of surface boxes
9 Manufacture and workmanship
10 Coatings and corrosion protection
11 Bedding-in, permanent set and durability
   requirements
12 Marking
Annexes
Annex A (normative) - Loading tests
Annex B (informative) - Optional items to be
        agreed between the manufacturer and the
        purchaser
Bibliography

Defines requirements for surface boxes to be used with guards and underground chambers designed for the purposes of utilities including those intended for factory infill having a maximum designated overall clear opening of 450 mm x 450 mm. Also defines surface boxes made from cast iron, cast aluminium, plastics and fabricated steel.

This part of BS 5834 specifies requirements for surface boxes to be used with guards and underground chambers designed for the purposes of utilities including those intended for factory infill having a maximum designated overall clear opening of 450 mm × 450 mm. This British Standard specifies surface boxes made from cast iron, cast aluminium, plastics and fabricated steel. The selection, use and surface finish of infill materials for factory infilled covers is outside the scope of this standard.

A test method for loading tests is specified in Annex A and a summary of the optional items to be agreed between the manufacturer and the purchaser is given in Annex B.

NOTE 1 See Table 4 for permitted intrusions to the clear opening.

NOTE 2 Requirements for covers having a larger clear opening than 450 mm x 450 mm are specified in BS EN 124. In BS EN 124, such covers are referred to as gully or manhole tops.