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AndrewFlynn
AndrewFlynn
Common Task – Marking Grid
1a
b
c
d
e
2a
b
c
d
3
4
5
6
7
8
Assessorfeedback
A reallygoodfirst attemptatthe commontaskAndrew well done.Justneedyoutoreviewthe
above where there isnota tick andresubmitusingadifferentcolouredfont.Targetresubmission:
07/11/14 All changeshave nowbeencompletedtothe requiredstandardwell done.Please printa
copy off forsigning off andplacinginthe file.04.11.14
AndrewFlynn
2365-304 CommonTask September2014
1A.
Electrocutionmayoccur if a live conductorisunknowinglytouched. Ok.
1B.
Electrocutionof the co-workermayoccur while workingona lightfittingthinking itwasdead.Ok
1C.
The clientmayendup touchinga radiatorthat hasn’tbeenproperlybondedtothe mainearthterminal (MET) andis
currentlycarryingfaultcurrent. Ok
1D.
A memberof the publicmayuse the sinksinthe bathroomthat hadn’tbeenbonded tothe MET whichwas carrying
faultcurrent. Ok
1E.
If a shortcircuit occurredinthe systemdue toa live conductortouchinga low potential conductorwhichwould
cause a large amountof current to flowfromthe step-downtransformerthroughthe entire systempossiblymelting
the cablesand breakinglowvoltage devices.I.e.firealarms. Ok
2A.
Othercontractors may require powerfortheirownpowertoolssotheycando theirownproject. Ok
2B.
The clientwon’thave anypowermeaninganythingrequiring electricitytoworkwon’tbe usable.I.e.TV recorders
and house alarm. Ok
2C.
If lightsina publictunnel werebeingworkedonthe areawouldhave tobe blockedoff oron-site lightingwould
needtobe fitted. Goodexample.
2D.
Hospitalswill needaconstantpowersupplytomake sure emergencyequipmentandmachinerywasalwaysusable
like x-rayandheartrate monitors. Ok
3.
ï‚· Voltage IndicatorMeter(VIM)
ï‚· ProvingUnit
ï‚· MCB lockoff kit
ï‚· Pad lockand key
ï‚· Signand contact details Whatrequirementwouldthere be foranyppe?
ï‚· Hi-visibility jacket
AndrewFlynn
ï‚· Gloves
ï‚· Hard hat
ï‚· Steel toe cap boots
4.
1) Findwhichcircuityourequire toturn off.
2) Switchoff the breaker.
3) Lock off the breakerwitha pad lockand signwithcontact details.
4) Put keyinpocket.
5) Testthe Voltage IndicatorMeterwiththe provingunit.
6) Dependingonwhichsystemitisyouare workingondo one of the followingtests;
a) 1 phase system(1Line)
i) Line – CPC
ii) Line – Neutral
iii) Neutral – CPC
b) 3 phase system(3Line)
i) Line 1 – CPC
ii) Line 2 – CPC
iii) Line 3 – CPC
iv) Line 1 – Neutral
v) Line 2 – Neutral
vi) Line 3 – Neutral
vii) Line 1 – Line 2
viii) Line 1 – Line 3
ix) Line 2 – line 3
x) Neutral – CPC
7) RE-testthe Voltage IndicatorMeterwiththe provingunit.
8) As longas youhave permissionandthe circuitisdeadyoumay continue work.If the circuit isstill live youneed
to findthe correct MCB. Ok

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Isolation Andrew Flynn 04.11.14 (1)

  • 2. AndrewFlynn Common Task – Marking Grid 1a b c d e 2a b c d 3 4 5 6 7 8 Assessorfeedback A reallygoodfirst attemptatthe commontaskAndrew well done.Justneedyoutoreviewthe above where there isnota tick andresubmitusingadifferentcolouredfont.Targetresubmission: 07/11/14 All changeshave nowbeencompletedtothe requiredstandardwell done.Please printa copy off forsigning off andplacinginthe file.04.11.14
  • 3. AndrewFlynn 2365-304 CommonTask September2014 1A. Electrocutionmayoccur if a live conductorisunknowinglytouched. Ok. 1B. Electrocutionof the co-workermayoccur while workingona lightfittingthinking itwasdead.Ok 1C. The clientmayendup touchinga radiatorthat hasn’tbeenproperlybondedtothe mainearthterminal (MET) andis currentlycarryingfaultcurrent. Ok 1D. A memberof the publicmayuse the sinksinthe bathroomthat hadn’tbeenbonded tothe MET whichwas carrying faultcurrent. Ok 1E. If a shortcircuit occurredinthe systemdue toa live conductortouchinga low potential conductorwhichwould cause a large amountof current to flowfromthe step-downtransformerthroughthe entire systempossiblymelting the cablesand breakinglowvoltage devices.I.e.firealarms. Ok 2A. Othercontractors may require powerfortheirownpowertoolssotheycando theirownproject. Ok 2B. The clientwon’thave anypowermeaninganythingrequiring electricitytoworkwon’tbe usable.I.e.TV recorders and house alarm. Ok 2C. If lightsina publictunnel werebeingworkedonthe areawouldhave tobe blockedoff oron-site lightingwould needtobe fitted. Goodexample. 2D. Hospitalswill needaconstantpowersupplytomake sure emergencyequipmentandmachinerywasalwaysusable like x-rayandheartrate monitors. Ok 3. ï‚· Voltage IndicatorMeter(VIM) ï‚· ProvingUnit ï‚· MCB lockoff kit ï‚· Pad lockand key ï‚· Signand contact details Whatrequirementwouldthere be foranyppe? ï‚· Hi-visibility jacket
  • 4. AndrewFlynn ï‚· Gloves ï‚· Hard hat ï‚· Steel toe cap boots 4. 1) Findwhichcircuityourequire toturn off. 2) Switchoff the breaker. 3) Lock off the breakerwitha pad lockand signwithcontact details. 4) Put keyinpocket. 5) Testthe Voltage IndicatorMeterwiththe provingunit. 6) Dependingonwhichsystemitisyouare workingondo one of the followingtests; a) 1 phase system(1Line) i) Line – CPC ii) Line – Neutral iii) Neutral – CPC b) 3 phase system(3Line) i) Line 1 – CPC ii) Line 2 – CPC iii) Line 3 – CPC iv) Line 1 – Neutral v) Line 2 – Neutral vi) Line 3 – Neutral vii) Line 1 – Line 2 viii) Line 1 – Line 3 ix) Line 2 – line 3 x) Neutral – CPC 7) RE-testthe Voltage IndicatorMeterwiththe provingunit. 8) As longas youhave permissionandthe circuitisdeadyoumay continue work.If the circuit isstill live youneed to findthe correct MCB. Ok