cable glands en web

8/8/2019 Cable Glands en Web

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cable glands


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The main focus of our business is on the safety of our customers during their day-to-day work. For over

80 years now, weve been leading the way in the explosion protection sector in achieving this goal.

Development of explosion protected, electrical control devices and control units increased continuously

and successfully as of 1926. Pioneering new developments and innovative products are the results

of this success. R. STAHL specialists have been working actively for many years now in national and inter-

national committees to define new standards and better safety regulations. R. STAHL presented the

EXLUX 6000 explosion protected series of strip lighting units in 1989. The company quickly became a leading

supplier to the world market in the lighting sector. In 1993, three independent fieldbus systems from

the R. STAHL company were used on an offshore drilling platform near the coast of Norway. What was then

the companys largest fieldbus project required customer-specific, innovative solutions and a high quality

engineering share. R. STAHLs remote I/O System IS1 was introduced in the year 2000 making a decisive step

into the new millennium and gearing for the future. Today, it is an important element of the companys

new fieldbus solutions. Then as now, safety standards did not pose a barrier to us but represented a challenge.

We not only comply with all standards, but are generally also involved in helping to create these standards

and set new ones. As a result, R. STAHL numbers among the leading suppliers of explosion protected compo-

nents and systems for measurement, control, instrumentation, power distribution, operator control and

observation, besides lighting, worldwide. This in turn results in our offer of all-in services to the explosion

protection sector.


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your safety -- our reality

Spoilt for choice 5

Application guide 6

Ex e cable glands 8

Ex d cable glands 10

Triple certified 12

TRITON CDS 14

Accessories 16


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Before cable gland products can correctly be selected to

suit the users application, there are a number of variable

factors that need to be determined. Without this infor-

mation it is difficult to make an accurate selection or rec-

ommendation. Some of these factors may include location,installation code of practice, environmental conditions,

industrial or classified hazardous area, type of equipment

and details of the cable to be used.

Here are some general guidelines that may help to identify

the appropriate cable gland product to suit your situation.

General cable gland selection guidelines

> determine conditions of use, i.e. industrial,

hazardous area.> determine environmental conditions

> determine type of cable, armoured or non-armoured

> determine type of armour and thickness,

where applicable

> determine cable overall diameter

> determine cable inner bedding diameter,

where applicable

> determine enclosure type and configuration

> determine whether there is any potential for the coupling

of dissimilar metals (e.g. brass and aluminium)

> determine entry hole type and size

> determine any access limitations or space restrictions

> determine any special earthing or EMC requirements

> determine accessories required, where applicable

If the cable glands are intended for use in flammable

atmospheres (hazardous areas), the following additional

points may help your selection process:

> what is the protection method of the equipment,

e.g. Exd, Ex e, Ex n> which gas group is the equipment rated for service in

IIA, IIB or IIC

> if Ex d, is the cable directly entering the main enclosure

> if Ex d, is there a source of ignition inside the enclosure

> if Ex d, is the enclosure volume less than or greater

than 2000 cm3

> if Ex n, is the enclosure a restricted breathing (Ex nR)

enclosure

application guide

> if Ex nR, restricted breathing enclosure, does the cable

directly enter the main enclosure

> entry hole type, drilled and tapped (threaded) or

clearance hole

> entry hole thread form and size

Once the above information has been identified, the person

carrying out selection is more able to make an informed

decision about which product should be used from the

choices available.

Please note that selection and installation should be

carried out in line with good engineering practice, observing

the requirements of the prevailing code of practice

(e.g. IEC 60079-14), and in accordance with the instructions

provided.IEC 60079-14 requires that the selection and installations

of equipment shall be carried out only by competent

persons whose training has included instruction on the

various types of protection and installation practices,

relevant rules and regulations and on the general principles

of area classification. The competency of the person

shall be relevant to the type of work to be undertaken.


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hazardous area cable glands (CENELEC approved)

type protection cable type generic cable type specific sealing method I.P. rating

8161 Ex e unarmoured S.W.A. (single wire armour), braid armour outer seal IP66, IP68

8163/2T3CDS

Ex e, Ex d armoured (universal) S.W.A. (s ingle wire armour), braid armour(SWB, GSWB, CWB, TCWB or BWB)

inner and outer seal withdeluge seal

IP66, IP67,IP68

8163/2E1FU

Ex e, Ex d armoured (universal) S.W.A. (s ingle wire armour), braid armour(SWB, GSWB, CWB, TCWB or BWB)

inner and outer seal IP66

8163/2E1FW

Ex e, Ex d armoured S.W.A. (single wire armour) inner and outer seal IP66

8163/2E1FXZ

Ex e, Ex d armoured braid armour (SWB, GSWB, CWB, TCWB or BWB) inner and outer seal IP66

8163/2E2FU

Ex e, Ex d armoured lead sheated(universal)

L.C./S.W.A (lead sheathed and single wire armour),L.C./S.T.A (lead sheathed and steel tape armour)

inner and outer seal IP66

8163/2E2FW

Ex e, Ex d armoured lead sheated L.C./S.W.A (lead sheathed and single wire armour) inner and outer seal IP66

8163/2CUe

Ex e armoured (universal) S.W.A. (single wire armour), braid armour(SWB, GSWB, CWB, TCWB or BWB)

outer seal IP66

8163/2C2K

Ex e armoured (universal) S.W.A. (single wire armour), braid armour(SWB, GSWB, CWB, TCWB or BWB)

outer seal with deluge seal IP66, IP67,IP68

8163/2CWe

Ex e armoured S.W.A. (single wire armour) outer seal IP66

8163/2CXe

Ex e armoured braid armour (SWB, GSWB, CWB, TCWB or BWB) outer seal IP66

8163/2A2F

Ex e, Ex d unarmoured unarmoured outer seal IP66, IP67,IP68

8163/2SS2K

Ex e, Ex d unarmoured unarmoured double outer seal IP66, IP67,IP68

8163/2PX2K

Ex e, Ex d armoured (universal) S.W.A. (single wire armour ), braid armour(SWB, GSWB, CWB, TCWB or BWB)

outer seal/compoundbarrier with deluge seal

IP66, IP67,IP68

8163/2

PXSS2K

Ex e, Ex d unarmoured unarmoured outer seal/compound

barrier

IP66, IP67,

IP68

IEC cables Onshore Oil, Gas and Petrochemicals

specific cable type single seal double seal compound barrier

unarmoured A2F SS2K PXSS2KS.W.A. (single wire armour) CWe or C2K E1FW or E1FU PX2K

L.C./S.W.A (lead sheathed and single wire armour) E2FW or E2FU PX2KPB

A.W.A. (aluminium wire armour) CWe E1FW or E1FU PX2K

A.S.A. (aluminium strip armour) C2K E1FU or T3CDS PX2K

S.T.A. (steel tape armour) C2K E1FX/Z or E1FU PX2K

L.C./S.T.A (lead sheathed and steel tape armour) E2FX/Z or E2FU PX2KPB

L.C./GSWB (lead sheathed and braid armour) E2FX/Z or E2FU PX2KPB

wire braid armour (SWB, GSWB, CWB, TCWB or BWB) CXe or C2K E1FX/Z or E1FU PX2K

screened (braided) flexible e.g. CY/SY Controlflex CXe or C2K E1FX/Z or E1FU PX2K

IEC cables Offshore Oil and Gas

specific cable type single seal double seal compound barrier

unarmoured A2F SS2K PXSS2Kwire braid armour (SWB, GSWB, CWB, TCWB or BWB) C2K T3CDS PX2K

screened (braided) flexible e.g. CY/SY Controlflex C2K T3CDS PX2K

S.T.A. (steel tape armour) C2K T3CDS PX2K

Typical cable types with corresponding metal cable gland types

Selection table

Of course the cable type plays a significant part in the cable gland selection, but other important factors must also be carefully considered.

Please note that limitations or special conditions of safe use may be applicable to cable gland applications in accordance with IEC 60079.

For further assistance in the selection of cable glands please refer to pages 12 and 13.


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R. STAHL offers electrical installation material and cable connecting solutions with a variety of approvals

from internationally recognised certification bodies, including ATEX, IECEx and many others. R. STAHL,

the market leader in explosion protected material, offers a range of cable glands for use with armoured and

non-armoured cables, suitable for use in hazardous areas, classified under IEC 60079 -10, in both metallic

and non-metallic configurations. These cable glands have been designed and constructed in accordance with

BS6121 and EN50262, although the former established the more onerous requirement, and are certified

as fully compliant with the very latest EN and IEC standards EN/IEC 60079 series. With this approach, there

are no special seal materials required to suit typical low or high temperature situations, and two or more

alternative seals to suit each cable glands sealing range are not required. Consequently there are no special

order requirements necessary for the majority of project applications around the world. The certified cable

gland sizes on offer range from the regular M20 to the impressive M130. Using the same consistent design

concept this 8163/2 range stands proud amongst the rival offerings available on the market. Quite simply

R. STAHL gives you every possible combination of options that you could imagine.

spoilt for choice


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Series 8161

Increased safety Ex e non metallic indoor and outdoor cable glands with metric threads for use in Zone 1,

Zone 2, Zone 21 and Zone 22 hazardous areas with all types of unarmoured cables. Its superior

sealing technique ensures a highly effective and reliable high integrity solution. Suitable for use in

conjunction with increased safety Ex e apparatus or flameproof Ex de equipment which has an increased

safety Ex e terminal chamber. For Intrinsic Safety Ex i, a version with blue cap nut is available.

Series HSK

Increased safety Ex e bell mouthed cable glands are available in brass or plastic/aluminium with metric

threads for use in Zone 1, Zone 2, Zone 21 and Zone 22 hazardous areas with all types of unarmoured cables.

Because of their construction the cable glands are suitable for portable equipment.

Series 8163

Increased safety Ex e metallic cable gland for onshore and offshore applications with metric threads for use

in Zone 1, Zone 2, Zone 21 and Zone 22 hazardous areas with all types of armoured cables.

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ex e cable glands


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Series 8161> Intrinsic safety (Ex i) version available

> IP 66

> as single or multi-cable entry

> integrated plug (accessory) for closing unused

cable entries

Series HSK-MZ

bell mouthed cable glands in metal Ex e

> IP 68

> for portable equipment

Series HSK-K-MZ

bell mouthed cable glands in plastic/aluminium Ex e

> IP 68

> for portable equipment

1 3 Series 8163/2-C2Kcable glands Ex e

for all types of armoured cable

> suitable for use with offshore and onshore

cables, with outer seal

> incorporating internal deluge seal for arduous

conditions

> reversible armour clamping cone and uni-fit

clamping ring

Series 8163/2-CWe

cable glands Ex e

for SWA cable with outer seal

> suitable for use with onshore cables

Series 8163/2-CXe

cable glands Ex e

for wire braid armour cables with outer seal

> suitable for use with onshore cables

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0ex d cable glands

selection

Cables come in a wide variety of shapes and sizes, and new

designs are regularly being introduce. For example, ones

with optical fibres. The issue of correctly sealing these

cables as they enter hazardous area electrical equipment

is a worldwide problem, and not confined purely to local

conditions. Although there are no IEC construction standards

for the cables intended for use in f lammable atmospheres,

according to IEC 60079-14 if a cable gland with an

elastomeric flameproof seal is to be used, the cable should

> be substantially compact and circular (i.e. especially

the part of the cable entering the enclosure)

> have an extruded bedding (without any gaps)> have fillers, if any are used, which are non-hygroscopic.

Effectively, the cable must be assessed to verify its

suitablity to prevent gas penetration and migration along

its length, as well as its ability to prevent explosion

transmission through the cable, before any cable gland with

an elastomeric seal can be selected. Beyond this other

exceptions still exist.

The IEC installation code of practice IEC 60079-14 is very

clear about the selection of cable glands for use with

Ex d enclosure types.

Cable Gland Selection according to IEC 60079-14

Regarding the subject of cable glands to maintain integrity

of type of protection flameproof enclosures Ex d

using direct cable entry into the flameproof enclosures,

special selection criterions have to be considered

as defined in Section 10 of IEC Standard IEC 60079-14

Electrical apparatus for explosive gas atmospheres

Part 14: Electrical installations in hazardous areas (other

than mines).

In order to achieve compliance with the prevailing Code ofPractice, and in particular IEC 60079-14, it is necessary

to evaluate the function of the equipment, the cable gland,

and the cable. Furthermore, in order to satisfy the conditions

of the applicable standards compatibility of all three with

each other must also be verified. Section 10 of IEC 60079-14

Additional requirements for type of protection Ex d

Flameproof enclosures regarding the selection of cable

glands must be followed. Specific rules to ensure integrity

and safe operation of the installed equipment are also

set out here.


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If the cable gland is not certified as part of the equipment

but tested and certified as a separate component, and

the used cable is substantially compact and circular the

selection chart can be used

> if the cable is not round in appearance, or visually appears

to allow air to pass through its interstices because

the cable construction is not adequately filled, then a com-

pound barrier type cable gland could be selected.

> in the case of flameproof enclosures Ex d, the function

of the elastomeric sealing ring, which is applied to thesection of the cable entering the equipment is to provide

a gas tight seal around the cable bedding and prevent

explosion from penetrating the cable sealing point so that

the explosion cannot be transmitted to the external

atmosphere.

> if the cable is not round, it is not possible to rely upon an

elastomeric seal to perform a sealing function around the

cable sheath. An example of a cable that fits this scenario

is a twisted pair instrument cable where the insulated

conductors beneath the inner cable bedding do not

usually offer a round (circular) surface on which to seal.

If the inner bedding follows the same shape, then an

elastomeric seal may struggle to seal effectively around

the cable circumference. The effect is often more notice-

able with single pair cables, and it may be necessary to fit

a compound sealing barrier type cable gland to overcome

the situation, depending upon the form of protection

and cable entry configuration of the apparatus enclosure.

> equally, if the cable is not adequately filled, and allowsthe passage of air or gas along the cable length, then

there would be no protection to the inner part of the cable

when an elastomeric sealing ring is used. In this case

a compound barrier type cable gland is the only safe solu-

tion, and is necessary in order to maintain the integrity

of the equipment and prevent gas migration between

equipment or between hazardous areas and safe areas.


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The 8163/2 series hazardous area metallic cable glands are available for non-armoured, and all types

of armoured and braided cables. They fulfil all of the requirements of the European ATEX-directives and fully

comply with the latest IEC standards. 8163/2 series cable glands are available in single seal

and double seal orientations, and the double seal cable glands incorporate a displacement seal on the cable

inner bedding. Their modular design and wide cable acceptance range allows a broad variety of cables

to be terminated in a single cable gland without the need for alternative seals or clamping arrangements to

be ordered. In addition to normal sealing of the cable sheath, secure clamping of the single wire

armouring is essential as this armouring is used, not only for mechanical protection, but also contributes

to the electrical protection. In the event of an earth fault, the armouring acts as an earthing conductor,

and the earth continuity system is maintained via the cable gland. According to IEC 60079-0:2004, when

intended for use with braided type cables, the cable gland outer seal must also provide cable retention under

tensile load conditions without the braid being clamped. R. STAHLs 8163/2 series cable glands

are certified in accordance with this requirement. These cable glands are intended for use with Ex equipment

and are provided with triple certification Exd, Ex e and Ex nR, making them suitable for use with

flameproof (type d), increased safety (type e) and restricted breathing/non-sparking (type nR /nA) enclosures.

2triple certified

ex d, ex e, ex nR


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1modular design

Series 8163/2-A2F (offshore and onshore)Ex d, Exe and Ex nR for unarmoured cables

Series 8163/2-E1FXZ (onshore)

Ex d, Ex e and Ex nR for wire braid and

STA cables with inner and outer seal

Series 8163/2-E1FW (onshore)

Ex d, Ex e and ExnR for SWA cables with inner

and outer seal

Series 8163/2-E1FU (onshore)

Ex d, Ex e and ExnR for all types of armoured

cables with inner and outer seal

Series 8163/2-E2FW (onshore)

Ex d, Ex e and ExnR for lead sheathed SWA

cable with inner and outer seal

Series 8163/2-E2FU (onshore)

Ex d, Ex e and ExnR for all types of armoured and

lead sheathed cables with inner and outer seal

Series 8163/2-T3CDS (offshore and onshore)Ex d, Exe and Ex nR for all types of

armoured cables with inner and outer seal

> incorporating internal deluge seal for arduous

conditions

> reversible armour clamping cone and uni-fit

clamping ring ensuring right first time cable

termination

> unique compensating displacement seal (CDS)

system used on the cable inner bedding

Series 8163/2-PXSS2K (offshore and onshore)

Compound barrier glands Exd and Ex e for all

types of unarmoured cables

Series 8163/2-PX2K (offshore and onshore)

Compound barrier glands Exd and Ex e for all

types of armoured cables

inner seal housing body and outer seal housingreversible

armour cone

uni-fit

armour clamping ring


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Inner seal housing> robust explosion proof CDS system, less susceptible

to damage than equivalent diaphragm seals.

> no need for cable guide to protect CDS system

as cable conductors do not penetrate or

damage the explosion proof seal as they pass

through it.

> flameproof seal does not tear or split as a result

of frictional rotation during installation.

> flameproof inner seal remains in the cable gland,

and does not ride on the cable, and therefore is

not prone to mechanical damage when the cable

needs to be withdrawn from the equipment.

> remote take off, disconnection and re-connection

does not jeopardise the safety integrity of the

Ex apparatus.

> inspection can be affected without disturbing the

inner seal.

Deluge protection seal> deluge protection by means of tried and

tested Oring feature simple and effective

arrangement.

> internal deluge seal is not exposed to mechan-

ical damage or ultraviolet radiation after

installation and is completely protected in its

operational working life, offering total reliability.

> There is no need to pull or re-position the

deluge seal on installation or subsequent

re-assembly after inspection, as the R.STAHL

Oring arrangement engages automatically

during a simple installation procedure providing

effective protection every time.

When a larger diameter cable is installed,

the inner compensator is effected to a greater extent

When a smaller diameter cable is installed,

the inner compensator is effected to a lesser extent

S compensator

inner seal housing deluge seal deluge sealinner seal housing

CDS compensator


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accessories

A range of accessories and thread conversion adaptors and reducers are offered to compliment the 8163/2

series cable glands. These include locknuts, serrated washers, sealing washers, earth tags and shrouds.

Locknuts are recommended to secure cable glands, unions, adaptors, reducers, and stopper plugs to a gland

plate or into equipment. Serrated washers fitted internally to the equipment and before a locknut act as

an anti-vibration device to prevent the cable gland or other cable entry device and locknut arrangement from

inadvertently loosening in service. Entry thread sealing washers fitted at the equipment interface are fitted

to maintain the ingress protection level of the equipment. For explosion protected equipment it is essential to

maintain the integrity of the degree of ingress protection at which the equipment has been rated. Slip on

earth tags installed between the cable gland and equipment, provide an earth bond connection as specified in

BS6121:Part 5:1993 and also comply with category B rating as specified in BS EN 50262. A range of push on

shrouds, which are used to minimise the risk of dirt or foreign substances gathering on the cable gland body,

and/or point of cable to gland interface are also available. Standard shrouds are produced in black PVC.

Thread conversion adaptors and reducers are available that convert the cable gland to a different thread type,

or enlarge or reduce the threaded connection between the equipment entry hole and the cable entry device.

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conductor bushings ExdThe conductor bushings are Ex-components, which

provide the connection between electrical

equipment within an enclosure and external circuits.

They are flameproof and form when fitted

into a flameproof enclosure an ignition- and

explosion-secure seal.

accessories

> locknuts

> earth tags

> sealing washers

> serrated washers

> flat washers

> shrouds

> enlargements, reducers in moulded plastic

> adapters and reducers in metal

> earth conductor bushings Ex e

red plugsThe plugs are for closing unused cable entries of

series 8161.

stopping plugs

> in moulded plastic

> in metal

breathing glands

> in moulded plastic

> in metal

post type bushings Ex d

The feed-through connectors provide a flameproof

electrical connection between two flameproof

enclosures or one flameproof enclosure and

a connection space with a different explosion

protection type.

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S

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R.STAHL Schaltgerte GmbH

Am Bahnhof 30, 74638 Waldenburg, Germany

Telephone + 49 7942 943 -0

Fax + 49 7942 943-4333

www.stahl.de

cable glands en web

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