1-conformite aux normes anglais

8/12/2019 1-Conformite Aux Normes Anglais

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Legal texts and standards1

Cable trays, cable ladders & trunkingsstandards

Low voltage directive n 95-1081 law Dated on 3 rd October 1995Safety for people, animals and building when using electrical equipment under voltage margin.

This directive is an application of the N 73/23/CEE low voltage directive(19th February 1973) which has been modified by the N93/68/CEEdirective(22th July 1993 amendment)

N 89/336/CEE Directive - Dated on 3rd May 1999European agreement about electromagnetic compatibility

IEC 61537 standard dated on September 2001Cable trays & cable ladders for electric installations :-cable trays, cable ladders, hanging system load tests conditions .-Marking and documentation

IEC 61084 1&2 standard Channels and duct systems for electrical installations

NEMA Standards Publication VE 1-2002 : Metal Cable tray systems

ANSI / NFPA 70 (2002)National electrical code (NEC)

DIN 1402 12 standard Cable trays & support system fire resistance.

TOLMEGA products in compliance with theDIN 1402 - 12

DIN 1402 - 12After being checked, cable trays, supports and cables are put in a1000temperature ambiance during 30, 60 or 90 minutes.

Tests centre : I.B.M.B - Braunschweig

Certified E 30-60-90 configurations :

Fire testing certification2

BST60 cable trays -100 up to 500 mm widthSpan 1,20 m -Load 10 kg/m.

Hercule cable ladder - 200 up to 400 mmWidth-span 1,20 m - Load 20 kg/m.


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The products are designedand manufactured to thehighest world standards

3

The low voltage European Directive 95-1081 specifies thatelectrical material must be safe for people, animal and

goods (cf. A)

To be in compliance with the Directive,the manufacturer must: manage a quality control of manufacturing process provide every product with a conformity certificate provide administration with a technical documentation show the compliance by the marking . (cf. B)

Products under IEC 61537 Standard are in compliancewith the requirements of the European directive.This standard specifies the requirements for :- intallation (cf. C)- load testing (cf. D)- classification (cf. E)

marking, dimensions...

In addition to IEC 61537 Standard, all products aretested on request to NEMA VE1-2002 standard METAL CABLE TRAYS SYSTEMS Difference to IEC: this standard mentions requirements for- corrosion protection (see page 15-16)- and grounding function (see A)

TOLMEGA cable trays products are load tested to residualdeflection (see page 8)Product information is provided including the rated load/span and information on SS or Aluminium Alloy

if applicable.

A - Safety conditionsFire reactionThe TOLMEGA metallic products are MO fire reactioncertified.

Electrical continuity To IEC 61537 standardTOLMEGA products meet electric continuity requirements:rsistance 5 milliOhm/m without couplersrsistance 50 milliOhm with splice plates.

To NEMA VE 1-2002cable trays systems shall be joined with connections means meetingthe requirement of clause 5.1:Net rsistance of the connection 0.00033 Ohm or 2x600 urmsample/30 Adc

Bolting junction between2 steel wire cable trays(200 mm length) 1,13

0,98

0,90

0,84

T-SCOPIC bolted junction(360 mm length)

Bolting junction between2 ventilated cable trays(160 mm length)

Bolting junction betweentrunkings (150 mm length)

R liaison(mOhm)

Electrical continuity tests to IEC standard Tests sample sections: 50 x 150 mm. Measure characteristics :

Voltage = 5VFrequency = 50 Hz

Rsults : all links have a resistance 50 milliOhm asrequired by the IEC 61537 standard.(Lille University laboratory)


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TOLMEGA identification mark

On cable trays or non-packaged accessories : indelible markinked or engraved. On all packaged accessories*:

marked on the product.* some packaged accessories can be also marked one by one

C - Assembly instructions No junction on end spans Others spans: any location for the junctions .

For width > 200 mm, we recommend to fit a junction on the bottomof the cable trays.

For 2 m span, T-SCOPIC range, we recommend L/5 junction(400 mm to support).

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No junction No junctionAny location of the junction

i i i ii ll i i

2 m 2 m 2 m 2 m

400 (L/5) 400 (L/5)

As an evidence of their compliance to standards, TOLMEGAcable trays and cable ladders are marked. For a betteridentification, the product code, size and finish is written inaddition of the marking if applicable.

B - Marking in compliance with theIEC 61537 standard Low Voltage Directive - Law N95-1081 (art. 8)

The CE marking is the symbol defined on annex of this law; it is marked onthe electrical material or packaging, notice, or guarantee... CEI 61537 (Extrait 7.1)Each system component shall be durably and legibly marked with- the manufacturers or responsible vendors name or trade mark or

identification mark- a product identification mark which may be, for example, a cataloguenumber, a symbol or equivalent.When system components except cable trays land cable ladder arepackaged, the product identification mark may be, as an alternative,marked on the package. Compliance is checked by inspection .For the product marking, compliance is also checked by rubbing byhand during 15s with a piece of damp cotton cloth and again during 15s witha piece of cotton cloth soaked with petroleum spirit.


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D - Recommended supports location Small widths of horizontal or vertical bends ( 300 mm),plan 2 brackets located at the entry and the end of the bend. Large widths of horizontal or vertical bends( 300 mm)plan 3 brackets at the entry, the middle and the end of the bend.

300 maxi (large)150 maxi (small)


3 0 0 m a x

i ( l a r g e

)

1 5 0 m a x

i ( s m a

l l )


3 0 0 m a x

i ( l a r g e

)

1 5 0 m a x

i ( s m a

l l )

400 maxi

4

0 0 m a x

i

4 0 0 m a x

i

400 maxi

600 maxi

6 0 0 m a x

i

6 0 0 m a x

i

600 maxi

large width

3 0 0 m a x

i ( l a r g e

)

1 5 0 m a x

i ( s m a

l l )

3 0 0 m a x

i ( l a r g e

)

1 5 0 m a x

i ( s m a

l l )

large width


3 0 0 m a x

i ( l a r g e

)

1 5 0 m a x

i ( s m a

l l )2/3 radius

2 / 3 r a

d i u s

300 maxi (small)600 maxi (large)

300 maxi (small)600 maxi (large)

2/3 radius

3 0 0 m a x

i ( s m a

l l )

6 0 0 m a x

i ( l a r g e

)


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Results are selected according to :- the L/100 maximum deflection.- the 1.7 safety factor on the resistance while breaking.Usually deflection is < L/300 for cable trays and L/200 for wire meshcable trays. Transversal deflection < L/20 for both cable trays and wire cabletrays. For width > 200 mm, we recommend to fit a junction on the bottomof the cable trays.

SWL Safe Working Load / SpanIn compliance with the IEC 61537 standard, the manufacturer can select the load test type.

E - Load testing1) Cable tray to IEC 61537 standard

All TOLMEGA products are tested according to type 2- Cable trays fixed onto supports- Uniformly distributed load - Deflection is measured at 3 points along the line midway between thesupports and at right angles to the center of the tray. The 3 pointsmeasurements shall be under each ed ges or side beam and under the center.Load test-span pitch: 500 mm-Safe working load (SWL)is determined accordingto type 2 testinstructions.

L L

A/B

0,4L

L/2

Tests are achieved with an L (or X) end span, an L middle span anda 0.4 L cantilever.

Junction

Type I

Junctions are located anywhere on the routing

This test includes an end span junction. However, a routing startwith usual 3 m length conventional cable trays, so there is never end span junction on site. This is an useless requirement.

SWL are inferior to the selected test.

Type IIThere must not haveany junction on the end span

This is the usual application. There is never end span junction on site. This is the TOLMEGA selected test.

TOLMEGA selected test(50x150 mm steel wire cable trays and cable trays on span support 1,5 m).

Type III

Type IV

Span must be equivalent or multiple tothe standard length product and the

junction location is specified.

Weak parts location onto the cable tray

This is an unusual on-site configuration, except for T-SCOPIC4 m length cable trays in a 2 m span configuration: we recommend a L/5 junction: 400 mm to support for an easier installation.For conventional 3 m length cable trays, the manufacturer requiresthe installer to assemble the junctions on a 1,5 or 3 m span. This isnot convenient on site at all, but the results are profitable.Specific products

Type V Span > 4 m Special cable ladders heavy duty applications

SWL are superior to the selected test : profitable results.

Manufacturersspecifications

Comment Results

SWL Safe Working Load / SupportsThe IEC 61537 standard specifies that the SWL is the load limited by :The L/20 maximum deflection at the end of the bracketThe 1.7 safety factor .SWL values : daN ( brackets)

daN.m ( hanging systems) Bends /Supports

2) Cable tray to Nema VE 1-2002 All cable trays are subjected to loading to residual deflection (Method B)- Single beam span with free unrestrained ends- Uniformly distributed load - Vertical deflection measured on 3 points along the midway between thesupports and the 3 points of measurement shall be under each side rail and at the centre of the tray.

Load application- The residual deflection is measured according to 5.2.9.2 and 5.2.9.3Sections after loading until the minimum test load minimum test load = 1,5 x L x w where 1,5 = safety factor

L = span length (m)w = rated load (kg/m)

- Historical load/span class designation.

L / 2 0

L

Load (kg/m)

37677497

112149179299

8A

8B8C

C

DE

12A

12B12C

16A

16B16C

D20A

20B20C

2,4 3 3,7 4,9 6

Span (m)


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B - Cable fastening TOLMEGA products insure a continuous cable support system(CEI 61537).NOTICE . Basket trays : If data cables are not correctly fixed, the result canbe a deformation on every transversal wire mesh, 100 mm to 100 mm.Of course, this distortion is bad for the signal quality.We recommend to unroll cables instead of pulling it, do no twist and donot overload.

Direct wall fixing or horizontal wall fixing :Cables must not being damaged by their own weight.Between 2 cable ties, the minimum span is :> 0,4 m (conventional cables)> 0.75 m (screened cables).

Horizontal or wall fixing applications : cable ties must be used forpower cable (ejection risk in case of short-circuit)

Insulated or non insulated mono conductors are not allowed incable trays.

C - Equipotentiality Connect cable trays to the ground of the installation in order toincrease equipotentiality.

Connect cable trays to the ground of the installation each 15 m.If the length of the routing < 15 m, connect the end of cable tray tothe ground of the installation.Use TOLMEGAS earthing fasteners.

i lli

i

l li il

board

earthing

bolting connections

i

l i i

D - Electrical continuity In some countries, metallic cable trays cannot be used as earthing orequipotential conductor.However, it is recommended to earth the cabletray to the ground of the installation.

E - Earthing As a matter of safety , it is recommended toearth the metallic cable trays.In case of a short circuit, the protection can be : An Automatic switch off of the power supply. An Electrical separation A Low voltage circuit breaker.

In case of screened cables,connect carefully the end of thecable tray to the ground of themetallic board and connect thescreen to the ground of theequipment.

Forbidden Possible Recommended

TOLMEGA connecting units,bolted connectors and clip-onconnectors are in compliancewith IEC 61537 innon-corrosive conditions.

Pre-spliced cable trays

Cable fixings on

cable tray

0 , 7

5 m

s c r e e n e

d c a

b l e s

0 , 4

0 m

c o n v e n t i o n a l

c a b l e s

Horizontalor directwall fixing


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Electromagnetic Compatibility (EMC)5

A - DefinitionElectromagnetic compatibility : Capacity of an appliance or a systemto work correctly in its electromagnetic environment withoutproducing electromagnetic pollution.

Earthing:

Earth : earth ground, OV potential reference.Earth plug: Conductor in direct contact with earth.Earthing and grounding must be separated:

Earth network is connected to ensure the people protection. Grounding is active against electromagnetic influence.

On site, these 2 networks are connected. This multiple link solves theproblem of high impedance of the HF (high frequency) earthconductor.

B - Level of electromagnetic pollutionProducts in compliance with IEC 61537 standardare, in current use, passive against electromagneticinfluences. (emission & immunity).

The different levels of disturbance are defined :

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i'i i

i i l

i i li

i i l ' i ii

i l

i i ili

i' i i

Level of disturbance

immunitylevel

Level supported by an appliance ora system without dysfunction

Maximum level expected by aspecific environment

Maximum emission wich a materialmust not exceed

compatibilitylevel

emissionlevel

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l i i

i l i i ii i l i

i l i i i i i i

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i i i

C - Reducing effects of cable trays2 types of reducing effects of cable trays :

By grounding, the cable trays achieve a betterequipotentiality of the installation.The currents created by field influences in cabletrays are cleared.

Grounding connection reduces disturbance bygeneration of a reversed field.

D - EMC characterisationThere are two different ways to characterise theproducts :

Characterisation of the reduction of the radiation(dB) according to the frequency.

Characterisation of the transfer impedance (Ohm)according to the frequency.

a) The first characterisation is not recommended : There is no standard test report method about cable trays. Reducing radiation effect depends on reference, but EMC referencesare not stable (according to connections, installation conditions,environment conditions,) So, results are not repetitive. They depend on test methodsand conditions.It could be dangerous to extrapolate on site the reductionof radiation measured in insulated room.

b) Characterisation by transfer impedance is the way used bylaboratories and cable manufacturers : impedance is a intrinsic parameter of the cable trays, apart fromconditions of use. Measurement method is well known, repetitive and suitable.TOLMEGA uses this characterisation method.The lowest transfer impedance level is the highest reducing

effect of cable trays.


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Materials and finishes6

WHITE RUSTUnder what conditions do white rust appears ?A fast oxidization is needed , either under a heterogeneous film of water,or under permanent condensation (for example by differential aeration).This fast oxidization can be local or general. It is the precipitation of basic salts of zinc Zn (OH) 2. These basics salts are powdery, not veryadherent and provide no protection. However, they quickly combine withcomponents of the surrounding air to form a protective layer of basic zinccarbonate. The basic salts formed are not very soluble in water and theyaccumulate in the surface patina until reaching a state of balance betweentheir elimination in the form of soluble salts and their generation byoxidisation of the metal.

White rust has no effect on zinc coating lifetime.

A - Selection table

RECOMMENDED POSSIBLE

ZINC ON STEEL COATING

G : HOT-DIP MILL GALVANIZED STEEL SHEET(EN 10327/ ASTM A653 / BS 2989)The galvanized steel sheet is obtained by immersing a previously-treated steelsheet in a bath of molten zinc at 450-460C. The current grade of Z 275 NA isof a thickness of 18-20 per face, or 275 g/m2 per double face, normal zincformation N, finishing grade A. Contrary to wide-spread belief, no corrosion ispossible in sections of the metal when a galvanized metal sheet of currentthickness is sheared or stamped. Iron is protected through the batteryphenomenon consisting of the Iron-ZINC ELECTROLYTIC system.

HDG : HOT-DIP GALVANIZED AFTER FABRICATION(EN ISO 1461/ ASTM A123M / BS 729)After a surface treatment, the steel is immersed in a bath of molten zinc. Thisgives a zinc thickness ranging from 49 to 70 depending on the thickness of the metal sheet.

ZINC + : COATING ON EZThis special zinc protection process allows a better corrosionresistance than hot-dip galvanization (saline spray test ISO 9227: 1500 hours).Appearance : silk finish. No droplets after drying.

EZ : ELECTRO-ZINC GALVANISING(EN 12 329- EN 12 330 - NFA 91472/ ASTM B 633)Electrolytically, a zinc coating is deposited on the steel. The baths usedconsist of acid alkali solutions of zinc salts. The anodes are in zinc (generally to99.99 % of purity) and the parts to coat, previously degreased and cleaned, areconnected to the cathode.After galvanizing, the parts are chromed to increase the protection.

PG : CONTINUOUS HOT-DIP GALVANISED WIRE(EN 10244-2)The wire is continuous hot dip galvanized (220 g of zinc/m2).Then a wire drawing is processed in addition. For UNIFIL products,this is a very economic and high corrosion resistance proceeding.

GEOMET passivated small strips shaped zinc :Geomet components are made up of either passivated small strips shaped zincand aluminium into a mineral binder, or passivated small strips shaped zinc andnickel.This structural passivation allows a better corrosion resistance thanhot-dip galvanization (saline spray test ISO 9227: 1000 hours).

B - Description

ZINC LOSSES TROUGH CORROSION (TO ISO 14713) :Industrial environment : 0,7 - 2 / yearUrban environment : 0,7 - 2 / yearSea environment : 4 - 8 / yearRural environment : 0,1 - 0,7 / yearISO 1461 Zinc thickness (HDG)

thicknessmm

mini thickness of zinc

medium thickness of zinc

3


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OTHERS COATINGS EPOXY OR POLYESTER COLOURED COATINGSThese coatings are generally applied on continuous galvanised steel sheet (SZ)- For greater protection, it is recommended to select a hot-dip galvanised

(HDG) finish.- For aesthetic requirements and inside buildings, an epoxy coating can be

applied on mild steel XC or SZ finish.- Outside applications : Polyester- Inside applications : Epoxy

Benefits :- Save maintenance time by coloured location of the networks.- Provides a high corrosion protection, especially in severe environments.This two-way zinc+ coloured coating protection is the only process wherethe added corrosion protection properties provides more than the doubleof corrosion protection given separately.Characteristics :The coating is applied by electrostatic gun-spray then stove hardened.The heat-hardening powders offer good resistance to abrasion and shock,excellent lifetime value and requires no maintenance.Colours :Specify the RAL reference.

OTHERS MATERIALS 304 L : STAINLESS STEEL X2CrMi 18-10

(EN 10088-2 / AISI 304L)Good resistance to corrosion in natural and food atmospheres.

316 L : STAINLESS STEEL X2CrMiMo 17-12-2(EN 10088-2 / AISI 304L)Especially intended for the chemical and food environments, and surfacetreatment. Except by written agreement, all productssupplied Tolmega for stainless steel equipment always mean:- Not trimmed- Not degreased- Not cleaned, decontaminated or passivated .We can perform complementary treatment ofdecontamination / passivation on request.

AG3 : ALUMINIUM ALLOY 5754(EN 573- NF EN 485 / ASTM B275 - ASTM B209)As for the stainless steels, AG3 is protected from exteriorcorrosion by a passive layer of alumina, which is naturally formed in the air.Its resistance to corrosion is very good in neutral environments (4


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E - Class designation1) According to IEC 1537

Range(G and HDG) T-SCOPIC BS UNIFIL SR HERCULE ATLAS

Material

FirePropagation

Electriccontinuity

Electricpropagation

Finishes

Temperature

Perforation*

Shock resistance (J)

* Open-area of perforated cable trays (C >15% up to 30% - D >30%)Open-area of cable ladders (Z >90%)

Metal Metal Metal Metal Metal Metal

Nonpropagation

Nonpropagation

Nonpropagation

Nonpropagation

Nonpropagation

Nonpropagation

Continuity Continuity Continuity Continuity Continuity Continuity

Conductor Conductor Conductor Conductor Conductor Conductor

Metallic coating

Metallic coating

Metallic coating

Metallic coating

Metallic coating

Metallic coating

-20C up to+60C

-20C up to+60C

-20C up to+60C

-20C up to+60C

-20C up to+60C

-20C up to+60C

C C D Z Z Z

20 20 20 20 50 50

D - ISO 9227 Saline spray tests

(1) - The beginning of the corrosion is located on cut offs.(2) - The separation of the coating is located close up to the oblong holes .This is due to an acid cleaning operation achieved before coating

Tests achieved on a BS 48 :147 sample White rust : no effect on the lifetime coality Red rust : active corrosion

SS 316 L grade (after decontamination &passivation operation)

SS 316 L grade (without decontamination& passivation operation)

ALUMINIUM

HDG HOT-DIP GALVANISED STEEL SHEET

SZ CONTINUOUS HOT DIPGALVANIZED STEEL SHEET

SZ CONTINUOUS HOT DIP GALVANIZED STEELSHEET + EPOXY COATING 60 up to 80m

HDG HOT-DIP GALVANISED STEEL SHEET+ EPOXY COATING 60 up to 80 m

ZINC +

WhiteCorrosion 24 H 168 H 240 H 504 H 744 H 984 H 1224 H 1512 H

nononononono

no

nonononononono

nononononono

no

nonono nonono

1% up to 2%(1)no

nononononono

no

light

nono

no

nononononono

nono

no

nonono

start (1)nono

nono

no

nonono

nono

nono

no

nonono

stabilizationnono

nono

5% of the surfaceno

nonono

nono

100% of the sample surface

5%of the surf.no

no

RedWhiteRedWhiteRed

WhiteRedWhiteRedWhiteRedWhiteRedWhiteRed

start (1)

start (1)

5 up to 10% of the surface100%

100%50% dof the surface

lightseparation of coatingstart (1)

100% of the sample surface


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Load (kg/m)

37677497

112149179299

8A

8B8C

C

DE

12A

12B12C

16A

16B16C

D20A

20B20C

2,4 3 3,7 4,9 6

Span (m)

16

Typicals dimensions

Widths*

Widthsmm

50

75100150200300400500600700800900

1000

Cable traysBasket trays

Cable Ladders

Products

Depths

Depths

25

5075

100150

Cable traysBasket trays

Cable Ladders

Products

Lengths of straight sections*

Lengthsm3

46

Cable trays - Basket trays BS - UNIFIL

Cable trays T - SCOPIC Cable Ladders SR - HERCULE - ATLAS

Type Range

Historical load / Span class designation

* Others dimensions on request :- Nominal rung spacing (cable ladders) : 300 mm.

Other on request.- Inside radius for bends : 150, 200, 500, 600 mm.

Other on request.- Degrees of Arc for elbows : 45, 90.

Other on request.

F - RoHS / WEEE Environmental protection RoHS : Restriction of use of certain hazardous Substances (European Directive 2002/95/EC)

All TOLMEGA products dont contain any substances marked out by the directive. WEEE : Waste Electrical and Electronic Equipments (European directive 2002/96/CE).This directive is not applicable to TOLMEGA products.

2) According to NEMA VE 1-2002

1-conformite aux normes anglais

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