code of practice of electrical safety for work on or near high voltage

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Access <strong>for</strong> Work on or Near High Voltage ElectricalApparatusWhere a general statement is used and anyisolation point is to be changed (whilst stillmaintaining general condition <strong>of</strong> isolation), prioragreement shall be obtained from all affectedoperating authorities.The receiving operating authority shall consult withrecipients <strong>of</strong> affected access authorities be<strong>for</strong>eagreeing to any change,Verbal statements shall only be used betweenoperating authorities when:• there is mutual agreement to use verbalstatements;• they have established procedures andsystems <strong>for</strong> the centralised logging <strong>of</strong>in<strong>for</strong>mation both given and received,regarding the condition <strong>of</strong> <strong>electrical</strong>apparatus;• the procedures and systems guard againstthe inadvertent operation or restoration <strong>of</strong><strong>electrical</strong> apparatus.Page 106 <strong>of</strong> 148 Blue Book – December 2005
Access <strong>for</strong> Work on or Near High Voltage ElectricalApparatus9.7.4 High Voltage Metal-Clad Switchgear andAssociated Electrical Apparatus9.7.4.1 For the purpose <strong>of</strong> issuing an <strong>electrical</strong>access permit, a circuit breaker or a voltagetrans<strong>for</strong>mer may be regarded as isolated and atearth potential when it is racked out, andappropriate precautions taken to prevent reenergisation.(see also Clause 9.1)9.7.4.2 For <strong>work</strong> on busbar circuits, where thephysical separation <strong>of</strong> circuits within a chamber isnot visibly evident, additional precautions shall betaken <strong>for</strong> the <strong>safety</strong> <strong>of</strong> the <strong>work</strong>ing party.9.7.4.3 The proposed means <strong>of</strong> access withinmetal-clad chambers shall be described to theauthorised <strong>electrical</strong> operator by the recipient incharge and both must agree on the extent <strong>of</strong>access and that such access is safe.9.7.4.4 When access is required within spoutbushings the contacts shall be confirmed as deenergisedby an approved test. The circuit shallalso be earthed elsewhere or other precautionstaken to ensure that the spout contacts cannotbecome live by induction or other means.Blue Book – December 2005 Page 107 <strong>of</strong> 148
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ELECTRICAL SAFETY COMMITTEEMEMBERSH
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the requirements of</strong
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ContentsPAGE4 TRAINING AND AUTHORIS
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ContentsPAGE8.5 High Voltage Metal-
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ContentsPAGEClearance to Place Elec
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Definitions3 ‘Appliance’ means
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Definitionsallow work</stro
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concerned.Definitions22 ‘High vol
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DefinitionsHelicopters used <strong
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Definitions43 ‘Practicable’ mea
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Definitions54 ‘Tester in Charge
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ScopeThis Code sets a minimum stand
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General Safety Requirements3.2 FIRS
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times.General Safety Requirements3.
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General Safety Requirements3.10 TAP
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General Safety Requirements3.13 WOR
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General Safety RequirementsThe pers
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Training and Authorisation4 TRAININ
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Training and Authorisation• Knowl
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Work in the Vicinity of</st
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Approach To Electrical Apparatus6 A
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Approach To Electrical Apparatus‘
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Approach To Electrical ApparatusTab
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Page 67 and 68: Approach To Electrical Apparatus6.6
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Page 73 and 74: Earthing of High V
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Page 121 and 122: AppendixAPPENDIX A - INFORMATIONTO
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Page 127 and 128: AppendixStatement of</stron
Page 129 and 130: IndexClausePageApparatus . . . . .
Page 131 and 132: IndexClausePageuse of</stro
Page 133 and 134: IndexClausePageat the site
Page 135 and 136: IndexClausePagesigns and barriers .
Page 137 and 138: IndexClausePagesuitable clothing .
Page 139 and 140: IndexClausePageLIMITSaccess authori
Page 141 and 142: IndexClausePageMOBILE PLANTearthing
Page 143 and 144: IndexClausePageauthorised to operat
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Page 147 and 148: IndexClausePageSLEEVESinsulating .
Page 149 and 150: IndexClausePageUUNDERGROUND CABLESm
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