A PROPOSAL ON THE SUBJECT OF PRIVATE STANDARDIZATION

THE SUBJECT OF PRIVATE STANDARD DEVELOPMENT

Date of proposal: Secretariat of Organization

TCs WGsAuthor of proposal:

THE PROPOSAL

Title of proposal:"Dimensions of special product of vehicular area manhole cover, of round opening, of cast iron construction, size DN.730mm or 29in (D.730/735), and 360 or 400 kN loading class."Material: - grey 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 private standard document (as case, a publication / deliverable) concerning the dimensions of special product of a street manhole cover - which may be in concordance with requirements of one or more regional basic standard(s) of cast 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 private standard document (norm) aims to specify the main dimensions for a special product of a cast iron vehicular area manhole cover of DN.730mm/29in, rated size of 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:

> Round (circular) frame with round opening;

- overall dia. of lid piece: 730mm (28.75in),

- top opening of frame: dia. 735mm (28.9375in), - round,

- top dia. of frame: 775; 780mm (30.50; 30.75in), - round

- inner opening of frame base - dia.765mm (30.125in); 800; 825mm (32in); 920mm (36.25in),

to fit a 750mm (30in); 800mm (32.50in); 36in (915mm) dia. of manhole top opening (entry).

- clearance (clear opening) of frame, - about 670mm ( 26.375in),

- 4 vent/key holes of about 40sq.cm. (~6.20sq.in) at all clear opening;

> which also allows an easy opening using common tools,

- optional, blocks for locking system fixing may be added, - on backside of lid piece.

The product which the subject of standardization consists in, may be useful for outdoor networks, water supply, as well sewerage chambers or storm water, - in vehicular areas.

The type of public standard document, as we consider the proposal may later transform into:

> concerning the therminology of EN45020:2006 description: - prestandard (3.3), product standard (5.4), technical specification (3.4), unilaterally aligned standard (6.8), - all of these aligned (related) to the EN124 CEN standard which is a basic standard (5.1).

> concerning the therminology of ISO/CEI-2:2004: - international standard (3.3), technical specification (3.4), technical report (3.5), publicly available specification (3.7).

730

28,528,5

(1-1/8”)(1-1/8”)255 ( 10”)255 ( 10”)

730 (28-3/4”) 725 ( 28-9/16”)730 (28-3/4”) 725 ( 28-9/16”)

grey iron casting ductile iron castinggrey iron casting ductile iron casting

INSCRIP

TIO

N

AREAS

INSCRIP

TIO

N

AREAS

LID Piece - DN.730 - 29” (D.730/735) Front side plane view - Anti-skid/slip pattern details- Loading class, - 360; 400; 600; 900 kN

LID Piece - DN.730 - 29” (D.730/735) Front side plane view - Anti-skid/slip pattern details- Loading class, - 360; 400; 600; 900 kN

O 685 ( 27”) at lower level (at bottom of slots)O 685 ( 27”) at lower level (at bottom of slots)

22 x [28,5] = 627 [ 22 x (1-1/8”) = 24-3/4” ] (at bottom of slots)22 x [28,5] = 627 [ 22 x (1-1/8”) = 24-3/4” ] (at bottom of slots)

Pi

kc/

evnt

hole

O 685 O 345 O 165 O 680 O 350 for SW = 6 O 165 SW = 8...10

O 685 O 345 O 165 O 680 O 350 for SW = 6 O 165 SW = 8...10

A; A1 A; A1 A; A1 A; A1 A; A1 A; A1 A; A1 A; A1 A; A1 A; A1

A-AA1-A1

Overall dia. O 730 ( 28-3/4”)Overall dia. O 730 ( 28-3/4”)

Central circularreinforcing rib

Central circularreinforcing rib

Intermediate circular

reinforcing rib

Intermediate circular

reinforcing rib

Perimetralreinforcing rib

Perimetralreinforcing rib

Radialreinforcing

rib

Radialreinforcing

rib

CMDCR 145 ( 5-3/4”)CMDCR 145 ( 5-3/4”)

CMDMR 395 ( 15-9/16”)CMDMR 395 ( 15-9/16”)

14;15;1614;15;16

R-4(5/32”)roundedge

R-4(5/32”)roundedge

R-4R-4AA AA

(9/16”... 5/8”)(9/16”... 5/8”)

25

5 (

10

”)in

be

twe

en

ho

les

cen

tre

s

25

5 (

10

”)in

be

twe

en

ho

les

cen

tre

s

MDER 645 ( 25-3/8”)MDER 645 ( 25-3/8”)

Ribs reinforcement consists in:

- intermediate circular rib medium diameter

- central reinforcing rib medium diameter

- lower width of radial rib - the same shape as the central and intermediate rib and also as the lower value of lower width, but having 1:15 on side of rib

Ribs reinforcement consists in:

- intermediate circular rib medium diameter

- central reinforcing rib medium diameter

- lower width of radial rib - the same shape as the central and intermediate rib and also as the lower value of lower width, but having 1:15 on side of rib

LID Piece - DN.730 - 29” Backside plane view

- grey iron construction ( 300; 350; 400 N/mm2)

Loading class, - 360; 400; 600 kN

LID Piece - DN.730 - 29” Backside plane view

- grey iron construction ( 300; 350; 400 N/mm2)

Loading class, - 360; 400; 600 kN

LID Piece DN.730 - 29” (D.730/735) Vertical Section A - A - structure without anti-skid detailsl- grey iron construction

- Loading class; - 360; 400 kN

LID Piece DN.730 - 29” (D.730/735) Vertical Section A - A - structure without anti-skid detailsl- grey iron construction

- Loading class; - 360; 400 kN

T = 14...16 (9/16”...5/8”)T = 14...16 (9/16”...5/8”)

Overall dia. O 730 ( 28-3/4“)Overall dia. O 730 ( 28-3/4“)

> 4 vent holes (about 40 sq.cm.)> 4 vent holes (about 40 sq.cm.)

255 255

AA

AA

LID Piece - DN.730 - 29“ Backside plane view - grey cast iron construction

> Loading class: - 360; 400; 600 kN

LID Piece - DN.730 - 29“ Backside plane view - grey cast iron construction

> Loading class: - 360; 400; 600 kN

Rib medium dia. O 645 (25-3/8”)Rib medium dia. O 645 (25-3/8”)

LID Piece - DN.730 (D.725/730) ; (D.730/735) Plane top view of front side - anti-skid pattern detail of 6 holes design Loading class, - 360; 400 kN

LID Piece - DN.730 (D.725/730) ; (D.730/735) Plane top view of front side - anti-skid pattern detail of 6 holes design Loading class, - 360; 400 kN

Trunk at top/baseTrunk at top/base

27/3027/30

30/3

23

0/3

2

2/

75

22

/7

52

4242

27 15 at to

p

t

30 12 a base

27 15 at to

p

t

30 12 a base

DN.730 Overall dia. O 725 ; 730 (28-3/16 ; 28-3/4”)DN.730 Overall dia. O 725 ; 730 (28-3/16 ; 28-3/4”)

w L or ~ f o 2 0ai 9d 7,m 5u i d e 5m 0- ) t” ru6 n1/ k5 s- p62 e( r r8 o6 w6 , aO t a b o u t 4 2 m m c e n t r e t o c e n t r e , e a c h t o s e q u e n t o t h e r

w L or ~ f o 2 0ai 9d 7,m 5u i d e 5m 0- ) t” ru6 n1/ k5 s- p62 e( r r8 o6 w6 , aO t a b o u t 4 2 m m c e n t r e t o c e n t r e , e a c h t o s e q u e n t o t h e r

(1)(1)

(1)(1)(1)(1) (1)(1)

(2)(2)

(2)(2)

(2)(2)

. a i d m Lui d ~e 1m 8 3- 4 ) ” 3 2 ( 44 38 5 t r uO n k s p e r r o w , a t a b o u t 4 2 . 7 m m

. a i d m Lui d ~e 1m 8 3- 4 ) ” 3 2 ( 44 38 5 t r uO n k s p e r r o w , a t a b o u t 4 2 . 7 m m

(1)(1)

. a i d Lm u =i d 1e 57m 0 - 0 0 5 3O 7 p e r r o w , a t a b o u t 4 2 , 4 m m

. a i d Lm u =i d 1e 57m 0 - 0 0 5 3O 7 p e r r o w , a t a b o u t 4 2 , 4 m m

42

~ 4

2~

.a i d L ~m ui 1d 30e 6m - 6 1 4 O 3 1 p e r r o w , a t a b o u t 4 2 m m

.a i d L ~m ui 1d 30e 6m - 6 1 4 O 3 1 p e r r o w , a t a b o u t 4 2 m m

)” 6 1 / 1 - 3 1 ( L ~2 3 103 42O 2 5 p e r r o w , a t 4 1 , 7 m m

)” 6 1 / 1 - 3 1 ( L ~2 3 103 42O 2 5 p e r r o w , a t 4 1 , 7 m m O

(1) - The surfaces which are at top of anti-skid trunks;

(2) - The surface which is at base of trunk, but also at top of lid plate (structure);

dohc ~ 245 mm, - distance in-between opposite holes centres;

Cd ~ O 185/188 (top/base) - dia of central circular trunk;

The holes are in number of 6, at 60 degree each to the sequent others,and have an ellipsoidal shape of clear opening, of 42x32, 40x30, or 38x27 mm

L - length of fictive circle which corresponds to the medium dia of row, - on which are the centres of trunks

(1) - The surfaces which are at top of anti-skid trunks;

(2) - The surface which is at base of trunk, but also at top of lid plate (structure);

dohc ~ 245 mm, - distance in-between opposite holes centres;

Cd ~ O 185/188 (top/base) - dia of central circular trunk;

The holes are in number of 6, at 60 degree each to the sequent others,and have an ellipsoidal shape of clear opening, of 42x32, 40x30, or 38x27 mm

L - length of fictive circle which corresponds to the medium dia of row, - on which are the centres of trunks

TrunksTrunks

CS N I R I P T I O D N E V R R E E S

CS N I R I P T I O D N E V R R E E S

A1A1 A1A1

Overall dia. 730 ( 28-3/4“)Overall dia. 730 ( 28-3/4“)

LID Piece - DN.730 - 29“ Backside plane view - Lid-Piece of 6 vent holes (60 sq.cm.)- grey cast iron construction

> Loading class: - 360; 400; 600 kN

LID Piece - DN.730 - 29“ Backside plane view - Lid-Piece of 6 vent holes (60 sq.cm.)- grey cast iron construction

> Loading class: - 360; 400; 600 kN

O 645 (25-3/8”)O 645 (25-3/8”)

AA

AA

FRAME Piece - DN.730 - 29” Top plane view

- grey iron construction (250; 300 N/mm2)

Loading class, - 360; 400; 600 kN

Applicable on manhole entry of dia. D.750mm (30”); D.800mm (32”); D.36” (915mm)

FRAME Piece - DN.730 - 29” Top plane view

- grey iron construction (250; 300 N/mm2)

Loading class, - 360; 400; 600 kN

Applicable on manhole entry of dia. D.750mm (30”); D.800mm (32”); D.36” (915mm)

Top opening dia. D 735 (28-15/16”) {DN. 730}(top inner dia.)Top opening dia. D 735 (28-15/16”) {DN. 730}(top inner dia.)

AA AA

Overall dia. - in compliance with drawings of ‘Section A-A’Overall dia. - in compliance with drawings of ‘Section A-A’

Top (outer) dia. D 775; 780 (30-1/2”; 30-11/16”; 30-3/4”)Top (outer) dia. D 775; 780 (30-1/2”; 30-11/16”; 30-3/4”)

14-16 at end14-16 at end

RibsRibs

l

i

7

Cearance

da. D

~ 60

(2

6-3/8”)

e

(clear op

ning)

l

i

7

Cearance

da. D

~ 60

(2

6-3/8”)

e

(clear op

ning)

(Applicable on manhole entry of dia. D.750mm (30”); 800mm (32”); 36”/(915mm)(Applicable on manhole entry of dia. D.750mm (30”); 800mm (32”); 36”/(915mm)

FRAME Piece DN.730 (D.730/735)

Section A - A

FRAME Piece DN.730 (D.730/735)

Section A - A

D 800 (30-1/2”)D 800 (30-1/2”)

Overall dia. D 945 (37-1/4”)Overall dia. D 945 (37-1/4”)

T = 14...16 (9/16”...5/8”)T = 14...16 (9/16”...5/8”)

D 780^ (30-11/16”)D 780^ (30-11/16”)

FRAME Piece - DN.730 - 29” Section A - A

- grey iron construction

- Loading class: - 360; 400 kN

FRAME Piece - DN.730 - 29” Section A - A

- grey iron construction

- Loading class: - 360; 400 kN