Examination programs Level 2 Application sector «Land»

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Edwin Manning
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1 Examinatin prgrams Theme 2 Crrsin and materials - Specific envirnments: sils, natural waters, sea water - Crrsivity f grunds, relatins with the resistivity and humidity, general knwledge f standard NF EN Reviews abut metals and allys used fr the structures in cntact with the grund thrugh cathdic prtectin: Carbn steels, cast irn, galvanized steel, stainless steels, lead, aluminium allys, cpper allys - Risks f stress crrsin cracking under separated cating Theme 3 General electricity - Assciatin f the batteries cnnected in series and parallel - Batteries lifespan - Dides characteristic curves Theme 4 General thery f cathdic prtectin - Reference electrdes and measurement electrdes used in sils and natural waters, influence f chlrides - Cathdic prtectin criteria in sils and natural waters fr carbn steels and cast irn Influence f resistivity, temperature, bacterial develpments Criteria f cathdic prtectin cncerning cmplex structures Risks related t cathdic ver-prtectin: hydrgen embrittlement, disbndment f catings Influence f alternating currents n the effectiveness f cathdic prtectin - Cathdic prtectin criteria in sils and natural waters fr ther metals and allys Stainless steels Cpper and allys Lead Aluminium and allys Galvanized Steel Risks related t the cathdic ver-prtectin f amphteric metals (alkaline crrsin) - Cathdic prtectin systems Cmparisn f different cathdic prtectin systems - Effectiveness and peratinal limits f cathdic prtectin Risks f crrsin related t the use f islating jints Influence f the distance ande/prtected structure Theme 5 Cathdic prtectin systems - Design and sizing f cathdic prtectin systems Determinatin f cathdic prtectin current Calculatin f the andes resistance accrding t the shape and the layut f the elements (hrizntal ande beds, vertical wells, wire mesh, etc...) Andic mass t be installed accrding t the required lifetime - Prtectin system by galvanic andes Level 2 Applicatin sectr «Land» Nv

2 Examinatin prgrams Available andic materials, chemical cmpsitins and electrchemical characteristics (ptential, electrchemical efficiency, practical mass cnsumptin and practical mass energy ) Selectin criteria f andic material Regulating mixtures Cnstructive arrangements (lifetime, numbers f andes t be installed, distributin, cupling factr) - Impressed current prtectin system Usable materials (characteristics, vltage, andic medium) Selectin criteria f andic material, cnditins f use Cnstructive arrangements (lifetime, number f elements) Regulating mixtures (inic cnductr and electrnic cnductr) Varius types f impressed current prtectin statins: transfrmer-rectifiers, batteries, piles, phtvltaic panels, pwer generatr sets, thermgeneratrs Hw t cntrl prtectin statins: impressed intensity, impressed vltage, impressed electrde ptential (serv-cntrl systems using a pilt reference electrde) - Auxiliary equipment: cables, islating jints, ptential test pints, discharge intervals, plarizatin cells, devices fr influence currents flw, etc - Cnstructive arrangements cncerning the crssings under sleeve (rads, railways), directinal drillings, river crssings, prximities t high vltage lines, pipes crssings, crbelled cnstructins alng the structures, etc - Startup and mnitring f the installatins Cathdic prtectin systems, sleeves, islating jints, AC r influence currents flw systems, electrical influences, etc.) Startup prcedures Maintenance and mnitring prcedures Mnitring and measurements peridicity Theme 6 Prtectin against the external electrical influences - DC railway tractin system (reviews) perating principle Cnstructive arrangement (pwer, insulatin, railways...) Applicable regulatins - Prtectin against stray currents Lcalizatin f rigins Means f prtectin (drainage, impressed currents statins, pipes sectinalizing, actins n the influence surce, grundings) Current drainage: cmpsitin, functinning, regulatin means n-site tests Electrical prtectin system Influence f the prtectin systems against stray currents n clse structures Administrative prcedures in frce - Startup and mnitring Checking f devices and their cmpnents befre startup Mnitring f devices perfrmance after startup Ptentials measurement n the structure t be prtected (instantaneus ptential, average ptential, maximum and minimum ptentials, recrdings, measurements n remvable and permanent metal indicatrs) Measurement f ptentials cncerning the surce f the cntinuus stray currents Startup prcedure Level 2 Applicatin sectr «Land» Nv

3 Examinatin prgrams Maintenance and mnitring prcedure Mnitring and measurements peridicity - Influences generated by ther cathdic prtectin systems in the vicinity: prtectin means, direct cnnectin, plarized cnnectin, resistant cnnectin, cating and mechanical prtectin, ptential measurements, maintenance and mnitring prcedure, mnitring and measurements peridicity - Influences generated by the prximity f high vltage structures (cnductin, inductin, capacitive effect, means f prtectin, regulatin) verhead high-vltage pwer lines 50 Hz railway tractin pwer systems Buried electric cables that transprt high vltage energy Crrsins generated by the 50 Hz alternating currents (rigin, risks evaluatin, slutins t be implemented) Startup and mnitring f prtectin devices perfrmance Mnitring and maintenance prcedure Mnitring and measurements peridicity - Influences generated by lightning Different type f discharges Characteristics f lightning shcks Direct and indirect lightning strikes (electrmagnetic cupling, cnductin) Keraunic level, lightning strikes density Factrs influencing drillings f burried pipes Safety Device (insulating cnnectin, lightning prtectr, equiptentiality f wrk statins) Startup and mnitring f prtectin devices perfrmance Mnitring and maintenance prcedure - Preventin f wrkers against electrical risks Preventin f risks Prtectin materials Regulatin Theme 7 Measurement techniques Equipment - Equipment Setting-up and implementatin f mbile r permanent reference electrdes (cpper saturated cpper sulfate) and f permanent measurements (zinc) Metrlgical mnitring accrding t NF EN IS 10012, mnitring f electrdes and f ther devices f the measuring equipment Metal indicatrs (cupns), assciated r nt with a reference electrde (setting-up and implementatin) Switchers Grunding measurement (fur stakes r quadriple, tellurmeter) Resistivity cell - Ptential measurements N current measurements n structures, punctual r with recrding Measurements f ptential in the presence f alternative influences Measurements f ptential in the presence f stray currents hmic drp related t the place f the reference electrde FF measurements with current switch-ff n the structure, punctual r with recrding Level 2 Applicatin sectr «Land» Nv

4 Examinatin prgrams Factrs influencing the results f measurements with current switch-ff (cmpensatin currents, stray r telluric current, influence f clse cathdic prtectin systems) ther factrs that influence permanent current measurements and measurements with current switch-ff (cntact resistance f the reference electrde with the grund, cntact resistance where the structure is cnnected, measurements carried ut n a cable which cnveys a current, galvanic cupling between the structures with strng insulatin value and the reference electrde with current switch-ff) Measurements with shut dwn current n metal indicatr, factrs influencing the results Clse Interval Ptential Survey ("CIPS") Measurements f ptential n cmplex structures - Measurements f current intensity and density Measurement f current circulating in a pipe (insulatin cnnectin with shunt, tw-wire methd, fur-wire methd, ampermetric ring) Determinatin f the current densities n structures r metal indicatrs. Detailed analysis f the factrs that influence the results - Measurement f sil resistivity and measurement f grund resistances Measurements in labratry (slid and liquid samples) Fur-pint methd (Wenner methd) Analysis f measurements f sil resistivity carried ut n site at different depths (prblems f stratified sils) Analysis f measurements f the grund resistance f structures (tellurmeter, variatin f the current intensity emitted by a D.C. surce) Insulatin values f buried structures - Analysis f measurements and measurements series - Supervisin f research series abut insulatin surface-breaking defects methd t reduce an alternating signal, methd using alternating currents (Pearsn), methd using DCs (" DCVG " and derived methds) - Finalizatin f interventin reprts - Lcalizatin f the cntacts between the prtected structure and ther metal elements. Case f sleeves Theme 8 Catings - Cating methd f passive prtectin supplemented by cathdic prtectin (active) - Nn cmpatible cating with cathdic prtectin: heat insulatrs - Main types f catings (cnstitutin, thicknesses) Main catings applied in factries n pipes: advantages and disadvantages f each ne Main catings used fr welded jints, shaped parts and repairs Mechanical prtectin cmplementary catings (anti rcks) External catings f buried tanks and strage tanks bttms Pipes sticking ut f the grund - Main prperties f catings Keeping f adherence, main gal Risks f crrsin thrugh a shielding effect t the cathdic prtectin current under heat insulating and nnadherent catings t steel. Practical imprtance (risks f crrsin r stress crrsin), mechanisms, main factrs such as resistivity, incidence n the validity f the measurement methds The detrimental effects f cathdic prtectin: blistering f paints, cathdic delaminatin Physicchemical resistance f catings: effects f temperature (applicatin fields), ph, bacteria Level 2 Applicatin sectr «Land» Nv

5 Examinatin prgrams Resistance f catings t mechanical aggressins (shcks, penetratin under tensin, bending) Theme 10 Knwledge f standards, prcedures and fficial texts f regulatin - The varius cmpetence levels and applicatin sectrs accrding t NF EN Prcedures f certificatin f persnnel accrding t NF EN 15257, examinatins, perid f validity - Prcedure CFPC PR4000: " Cnditins f use f the certificatin and cde f ethics " - General knwledge f the fllwing technical standards: BS EN IS " Requirements fr measurement prcesses and measuring equipment " BS EN " Cathdic prtectin f buried r immersed metallic structures - General principles and applicatin fr pipelines " BS EN " Cathdic prtectin measurement techniques " BS EN " Prtectin f metallic materials against crrsin - Crrsin likelihd in sil - Part 2: " lw allyed and nn allyed ferrus materials " BS EN " Prtectin against crrsin by stray current frm direct current systems " BS EN " Cathdic prtectin f cmplex structures " BS EN " Cathdic prtectin f buried metallic tanks and related piping " CEN/TS " Evaluatin f AC crrsin likelihd f buried pipelines - Applicatin t cathdically prtected pipelines " pren " Cathdic prtectin f external surfaces f the bttm f aerial steel strage tanks in cntact with the grund r the fundatins " NF EN " Prtectin against lightning ", Parts 1, 2 and 3 - Main fficial texts: Decree f May " electric Pwer Technical Cnditins f Distributin (specific mdificatins made by the decree f April and the fllwing nes" Decree n f 14 Nvember 1988 " Prtectin f wrkers in establishments where electric currents are used " Decree f 10 ctber 2000 " Inspectin n electrical installatins " Decree f 22 December 2000 " Cnditins and apprval prcedures f peple r rganisatins fr the mnitring f electrical installatins " Mining cde Decree f 13 July 2000 (mdified) abut safety regulatins f cmbustible gas distributin thrugh pipelines Decree f 4 August 2006 abut safety regulatins f pipelines transprting cmbustible gas, liquid r liquefied hydrcarbns and chemicals Level 2 Applicatin sectr «Land» Nv

TECHNICAL DATA INDUSTRIAL WATER CHILLERS AIR COOLED. 1-4 kw Cooling Capacity MADE IN AUSTRALIA HAVCR ENGINEERING SOLUTIONS MAINTAINENCE SERVCIES

TECHNICAL DATA INDUSTRIAL WATER CHILLERS AIR COOLED 1-4 kw Cling Capacity The MIKRO series chillers are a lw capacity unit designed t be installed indrs r utdrs. All THERMEX MIKRO chillers have as standard