Eaton CROUSE-HINDS SERIES Operating Instructions Manual

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Eaton CROUSE-HINDS SERIES Operating Instructions Manual Manual pdf 5 page image

52 Safety instructions2.1 PrinciplesThe operations shall be carried outby qualified electricians or suitablytrained personnel according toIEC/EN 60079-14 and engineer-ing/development specialists according toIEC/EN 60079-0.The empty enclosure type N-TB are notsuitable for Zone 0 and Zone 20 hazardousareas.The requirements of the IEC/EN 60079-31regarding excessive dust deposits andtemperature to be considered by the user.They shall be used for their intended purposeand in perfect and clean condition.After the empty enclosure type N-TB has beeninstalled, it shall be tested and fully certifiedby a testing authority or authorized person.Observe the national safety rules andregulations for prevention of accidents aswell as the safety instructions included inthese operating instructions and set in italicsthe same as this text!2.2 LegendCautionThis symbol warns of a possible failure.Failure to observe this caution may result inthe total failure of the device or the system orplant to which it is connected.NoteThis symbol highlights important informa-tion.XATEX - IEC Special conditionsThis symbol shows Highlights for safe use inaccordance to EU-Type-Examination Certificate/IEC Ex-Certificate of Conformity.3 Conformity with standardsThe empty enclosure type N-TB has beendesigned, manufactured and tested by CooperCrouse-Hinds (CCH), according to the state ofthe art and to DIN EN ISO 9001 andEN ISO/IEC 80079-34.References to standards and directives in theseoperating instructions always relate to the latestversion. Other additions (e.g. details relating tothe year) shall be observed.5 Use / PropertiesThe fully certified empty enclosure typeN-TB that has been tested by a testing authority/authorized person is used for the distribution ofelectric energy e.g. light circuits, heatingcircuits, control circuits, intrinsically safe circuitsetc.(see technical data for temperature class,explosion group, permissible ambienttemperature).The data as per point 3 and 4 shall be takeninto account with the use.4 Field of applicationFully certified empty enclosures that havebeen tested by a testing authority orauthorized person are suited for usein hazardous areas in Zone 1/2 andZone 21/22 in accordance withIEC/EN 60079-10-1 andIEC/EN 60079-10-2.The enclosure materials employed, including theexterior metal parts, are made of high-qualitymaterials which ensure a corrosion protectionand resistance to chemical sub-stancescorresponding to the requirements in a "normalindustrial atmosphere":- special stainless steel- brass- plasticIn case of use in an extremely aggressiveatmosphere, please refer to manufacturer.1 Technical data1.1 Empty enclosure type N-TBExplosion-protected empty enclosuremade of stainless steel type N-TBATEX type examination certificate: BVS 13 ATEX E 014UMarking acc. to 2014/34/EU and standard:EN 60079-0 II 2 G Ex e IIC GbII 2 G Ex e IIB GbII 2 D Ex tb IIIC DbIECEx type examination certificate: IECEx BVS 13.0026UCategory of application:IEC 60079-0 Ex e IIC GbEx e IIB GbEx tb IIIC DbPermissible service temperature: depends on sealing material of the enclosure:see chapter 10.1** if using the earthing bolt with washer, the max. service temperatures will be changed.Perm.storage temperature in original packing -20 °C to +40 °CProtection category acc. to IEC/EN 60529 IP 66 (catalogue version)Dimensions: see last pageMax terminalsEarth bolt M6 -Earth bolt M10 120 mm²Earth bolt M14 300 mm²Test torques:Cover screws: 6.0 NmGland plate screws: 2.0 NmEarth bolt M6 6.0 NmEarth bolt M10 15 NmEarth bolt M14 45 NmGB