Surface boxes, guards and underground chambers for the purposes of utilities - Specification for utility chambers
Surface boxes, guards and underground chambers for the purposes of utilities - Specification for utility chambers
1 Scope This part of BS 5834 specifies requirements and test methods for precast reinforced concrete and recycled polymerunits for utility chambers of rectangular shape (including utility chambers of square shape), for use with surface boxes conforming to BS 5834‑2 or covers and frames with a maximum designated clear opening of 900 mm × 600 mm and conforming to BS EN 124.
NOTE In BS 5834‑4:1989 “ utility chambers ” were termed “preformed chambers”.
Упомянутые в описании и другие стандарты BS