Eaton Crouse-Hinds Series Instruction Manual

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Eaton Crouse-Hinds Series Instruction Manual Manual pdf 8 page image

DRAFT - 20 November 2014INM 9370-SS Rev 74WARNING!It is not permitted to create additional holes in the enclosure as thiswould violate the certification.3.2 Preparationa) Remove any temporary protection or packing materials.b) The enclosure can be mounted on any suitable structure using the enclosure’s integralmounting brackets.c) The fixing bolts must be suitable for the mounting surface and the environmentalconditions.d) Prepare holes in the mounting surface, on the centres shown in Figure 3.1 or 3.2, toaccept suitable screws/bolts for mounting.e) It is advisable before mounting, to do any necessary replacement of the cable entryblanking plugs with a suitable gland. For further details see Section 3.1 e) & f).3.3 MountingWARNING!To minimise the risk of ignition by electrical apparatus in hazardousareas, efficient installation, inspection and maintenance of apparatusand systems is essential, and the work should be carried out by suitablytrained personnel in accordance with the prevailing code of practice.The certification documents specify “Conditions for safe use” thatmust be adhered to and the copy certificate supplied should bestudied and understood. Additionally it is recommend that a workingknowledge of IEC EN 60079 -14 be attained, as this standard providesguidance in respect to the installation of electrical equipment inhazardous areas.3.3.1 Fixing the enclosure to a surfaceThe enclosure can be used as a template. With help from at least one other person, hold itin the position required and mark the surface through the top slotted lugs only (as shownin Figures 3.1 and 3.2). Open up these hole positions to a suitable size and depth.For concrete/masonrya) Fit washers onto two expanding fixing bolts and screw the bolts into prepared holesto a depth that will allow the enclosure to be safely hung on them.b) Support the enclosure on these top bolts and mark the lower fixing points on themounting surface through the mounting lugs.c) Remove the enclosure and put it to one side. Open up, to a suitable size and depth,the hole positions that were marked on the mounting surface.d) Re-hang the enclosure on the top bolts and fit the bottom fixing bolts (and washers)for the lower lugs and secure them.e) Finally, tighten all fixing bolts to the manufacturers recommended torque value.For a steel structurea) After marking and preparing the top holes, put the enclosure in position and fix it withbolts, washers and nuts.b) Drill through the holes in the bottom lugs and fit the fixing bolts as for the top lugs.After mounting the enclosureCheck that:• it has not suffered any damage,• the IP rating is not affected; for example, by distortion of the enclosure,• the mounting bolts/nuts are all tightened as recommended above.