A PROPOSAL ON THE SUBJECT OF TECHNICAL PRODUCT SPECIFICATION

1. A PROPOSAL ON THE SUBJECT OF TECHNICAL PRODUCT SPECIFICATION
THE SUBJECT OF NORMATIVE DOCUMENT DEVELOPMENT
Date of proposal:
Secretariat of Organization
TCs
WGs
Author of proposal:
THE PROPOSAL of Technical Specification
Title of proposal:
"Dimensions of special product of residential area manhole cover, of round opening, of cast iron
construction, size DN.615mm or 24.30in (D.615/620), and up to 125 kN loading class."
Material: - cast iron - of grade to fit the loading class in compliance with thicknesses of pieces.
The document proposal comes to settle up a dimensional based normative document (as case, a
publication / deliverable) in the form of a technical product specification concerning the dimensions of
special product of a residential area manhole cover - in order to complete with requirements of one or
more regional basic standard(s) of cast/ductile iron manhole covers, - e.g. the regional CEN standard
"EN124 - Gully tops and manhole tops for vehicular and pedestrian areas. Design requirements, type
testing, marking, quality control", - or, with other basic standard concerning street, or residential area,
manhole covers - as long as the basic standard (e.g. as the EN124 is) does not apply for dimensions of
special products of manhole covers.
Thus, the proposed normative document (norm) aims to specify the main dimensions for a special
product of a grey/ductile iron residential area manhole cover of rated dia DN.615mm / 24.30in round
opening; - and must, as case may be, completed with other standards which refers to testing, marking,
quality control. (e.g. the EN124 CEN standard).
Short description of design related to product and main dimensions:
= Square frame (at top side) with round opening;
- overall dia. of lid piece: 615/616mm (~24.25in),
- top opening of frame: dia. 620mm (24.4in), - round,
- top length of frame: 725mm, (~28.5in), square
- lower opening of base of frame:
> round base frame, (with square top side), - dia. 795, - over the flange,
to fit a 800mm dia. of round manhole top opening (entry).
> square frame (at base and top), 725x725 or 767x767mm,
to fit a 700x700mm (~28x28in) or a 750x750mm (~30x30in) square manhole top entry.
- clearance (clear opening) of frame, - about 575mm (~22.63in),
- a key hole of about 1...1.25sq.cm. clear opening which allows an easy opening using common tools,
- optional, on designs of lid and frame - a hinge or locking system may be added.
The product which the subject of standardization consists in, may be useful for outdoor networks water supply, as well sewerage or storm water manholes, - in residential areas.
The type of public standardization document, considering the proposal may later transform into:
> concerning the terminology of EN45020:2006 description: - prestandard (3.3), technical
specification (3.4), - in order to complete with CEN standard EN124, which is a basic standard (5.1).
> concerning the terminology of ISO/CEI-2:2004: - technical specification (3.4), technical report (3.5),
publicly available specification (3.7).

2. LID Piece DN.615 - D.615(616)/620
Top plane view
- anti-skid pattern details
- Loading class, up to 125 kN
20 x 26 = 520
A1
A1
A2
R TI
CRIPTION
I S
INS SERVE N
R D
RE
A2
26
Overall
O 615(616)
in-between
sequent slots

3. LID Piece - DN.615
Top plane view
- Anti-skid pattern with central part detail

5. LID Piece - DN.615

6. Grated LID Piece - DN.615
- loading class, - 125 kN
Top plane view

7. Grated LID Piece - DN.615
- loading class, - 125 kN
C + B = 64 > C = 38 ; B = 26
40 ;
24
42
22
Section A - A

8. Grated LID Piece - DN.615
- loading class, - 125 kN
Bacside partial view

9. FRAME Piece D.615/620-S.725
Front side effective plane view
- anti-skid pattern details only
- Loading class, up to 125 kN
24 x 28 = 672
in-between opposite slots
O
0
62
e
ram
ff
go
nin
pe
po
To
28 in-between
sequent slots
Top side of frame
725

11. FRAME Piece - DN.615 (D.615/620)
- square top and square base structure only,
without front-side anti-skid pattern
- loading class, - 125 kN
O 620 at top
725 at top
Overall
Top plane view

12. FRAME Piece - DN.615 (D.615/620) - 750x750
- square top and square base structure,
without front-side anti-skid pattern
- Loading class, - 125 kN
- Applicable on 700x700 square manhole entry
Section A - A

13. FRAME Piece - DN.615 (D.615/620) - 750x750
- square top and square base structure only,
without front-side anti-skid pattern
- Loading class, - 125 kN
- Applicable on 750x750 square manhole entry
Section A - A

14. FRAME Piece - DN.615 (D.615/620)
- square top and round base structure only,
without front-side anti-skid pattern
- loading class, - 125 kN
Top plane view

15. FRAME Piece - DN.615 (D.615/620)
- square top and round base structure only,
- loading class, - 125 kN
Side (the right half) plane view

16. FRAME Piece - DN.615 (D.615/620) - D.800
Section A - A
- square top and round base structure,
without front-side anti-skid pattern
- Loading class, - 125 kN
- Applicable on 800 dia. round manhole entry

17. FRAME Piece - DN.615 (D.615/620) - D.800
- square top and round base structure,
- Loading class, - 125 kN
- Applicable on 800 dia. round manhole entry
Backside plane view