AS NZS 3800 pdf download

AS NZS 3800 pdf download.Electrical equipment for explosive atmospheres — Repair and overhaul (IEC 60079-19:2015 (ED. 3.1), MOD)
1 Scope
This part of IEC 60079 – gives instructions, principally of a technical nature, on the repair, overhaul, reclamation and modification of equipment designed for use in explosive atmospheres; – is not applicable to maintenance, other than when repair and overhaul cannot be disassociated from maintenance, neither does it give advice on cable entry systems which may require a renewal when the equipment is re-installed; – is not applicable to type of protection “m”, “o” and “q”; – assumes that good engineering practices are adopted throughout. NOTE Much of the content of this standard is concerned with the repair and overhaul of electrical machines. This is not because they are the most important items of explosion-protected equipment, but rather because they are often major items of repairable capital equipment in which, whatever type of protection is involved, sufficient commonality of construction exists as to make possible more detailed instructions for their repair, overhaul, reclamation or modification.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60079-0 and the following apply. NOTE Additional definitions applicable to explosive atmospheres can be found in IEC 60050-426. serviceable condition condition which permits a replacement or reclaimed component part to be used without prejudice to the performance or explosion protection aspects of the equipment, with due regard to the requirements of the certificate documentation as applicable, in which such a component part is used repair action to restore faulty equipment to its fully serviceable condition complying with the relevant standard NOTE The relevant standard means the standard to which the equipment was originally designed. overhaul action to restore to a fully serviceable condition equipment which has been in use or in storage for a period of time but which is not faulty maintenance routine actions taken to preserve the fully serviceable condition of the installed equipment (see Clause 1 ) component part an indivisible item NOTE The assembly of such items may form equipment. reclamation means of repair involving, for example, the removal or addition of material to reclaim component parts which have sustained damage, in order to restore such parts to a serviceable condition in accordance with the relevant standard NOTE The relevant standard means the standard to which the individual parts were originally manufactured.modification change to the design of the equipment which affects material, fit, form or function NOTE As the certificate describes specific construction of the equipment, a modification of the equipment would no longer comply with the construction described in the certificate documentation. manufacturer maker of the equipment (who may also be the supplier, the importer or the agent) in whose name usually the certificate, where appropriate, of the equipment was registered alteration change to a product that results in an alternative construction that is described in the certificate documentation user user of the equipment repair facility facility providing a service that consists of repairs, overhauls, or reclamations of explosion- protected equipment who may be the manufacturer, the user or a third party (repair agency) certificate document that assures the conformity of a product, process, system, person, or organization with specified requirements NOTE The certificate may be either the supplier’s declaration of conformity or the purchaser’s recognition of conformity or certification (as a result of action by a third party) as defined in ISO/IEC 1 7000. certificate references a certificate reference number may refer to a single design or a range of equipment of similar design symbol “X” symbol used to denote specific conditions of use NOTE The symbol “X” is used to provide a means of identifying that essential information for the installation, use, and maintenance of the equipment is contained within the certificate. Therefore, the certificate documents should be studied before such equipment is installed, repaired, overhauled, reclaimed, altered or modified. copy winding process by which a winding is totally or partially replaced by another, the characteristics and properties of which are at least as good as those of the original flameproof enclosure “d” enclosure in which parts which can ignite an explosive atmosphere are placed.