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RS 607-3: 2025
Gully tops and manhole tops for vehicular and pedestrian areas — Specification — Part 3: Gully tops and manhole tops made of steel or aluminium alloys

Abstract

This Rwanda Standard specifies requirements, sampling and test method for gully tops and manhole tops made of steel or aluminium alloys with a clear opening up to and including 1 000 mm.
It is applicable to manhole tops and gully tops for use in in areas subjected to pedestrian and/or vehicular traffic of class A 15, B 125, C 250, D 400, E 600 and F 900.
This Standard is not applicable to:
— manhole tops and gully tops made of aluminium tread plates for use in carriageways of roads (class D 400) and areas imposing high wheel loads (Classes E 600 and F 900);
— concave gratings for class D 400 installed in carriageways of roads or hard shoulders and concave gratings for classes F 900 and E 600;
— gratings/covers as part of prefabricated drainage channels;
— floor and roof gullies in buildings;
— surface boxes; and
— gully tops and manhole tops which are fabricated in hot working process.
NOTE This Part 3 of RS 607 is not applicable in isolation, but only in combination with RS 607-1 and gives guidance for combinations of covers/gratings made of steel or aluminium alloys with frames according to RS 607-2 and RS 607-4, RS 607-5 or RS 607-6.

General Information

Code	Classification	Theme	Pages	Publisher	Availability
RS 607-3: 2025	STANDARDS OF RWANDA ORIGIN	Metallurgy	35	First Edition Dec 2025	Available