fault test board
DESCRIPTION
Fault Test Board. Developed by Allan Goodger Moss Vale TAFE. From Boards originally developed by Ken Postill Ultimo TAFE. Ken’s Board. Faults introduced by 3 x 9 Gang switches. Contacts oxidise, and as a result a high resistance is introduced into the circuit. - PowerPoint PPT PresentationTRANSCRIPT
Developed by Allan GoodgerMoss Vale TAFE
From Boards originally developed by
Ken PostillUltimo TAFE
Ken’s BoardFaults introduced by
3 x 9 Gangswitches
Contacts oxidise, and as a result a high resistance is introduced into the circuit
Limited number of faults can be introduced into the circuit
Very good at developing fault finding techniques in students in realistic scenario
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Allan’s BoardFaults introduced bySeparate Fault CardPlugged into a socket
All circuit conductors from every circuit can be modified
All conductors are cut at this set of sockets
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Board Contains
Power Circuit
Mixed Circuit
Light Circuit
Hot Water & RangeCircuit
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Hot Water&
Range Circuit
Circuit to load is as per all other circuits
Terminates with flying leads
Load characteristics can be modified by the fault card
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Fault SocketB&R Enclosure
PJ221507
2 x 3mm groves are routered
into the box lid
Socket PCB is inserted into
slots from the back of the lid
Clamped into position by an insulated metal plateNext
Fault Socket
B&R EnclosurePJ221507 Lid
Vero BoardJaycar Part No HP 9544
Socket StripsFarnell Part No
9728856
Cardboard acting as insulation3mm Mild steel with 3/16”
threads cut into each corner
3/16” Screws
Installed from the front of the lidNext
Socket Pin-Outs
Range
Load
Spare
Range
HW
S
Light
Pow
er 2
Pow
er 1
Pins17-19
Pin16
Pins13-15
Pins10-12
Pins7-9
Pins4-6
Pins 1-3
From Switchboard
From LoadsH
WS
Load
Range
HW
S
Light
Pow
er 2
Pow
er 1
Pin16-18
Pins13-15
Pins10-12
Pins7-9
Pins4-6
Pins 1-3
Only Half of the socket is used
This allows the fault card to be spun around and a second set of
faults can be introduced
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Fault CardFault card installed
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With Fault Pin 1
Fault card No
See paperwork
Fault CardFault card installed
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Without Fault
Fault CardSide View
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Back View
Header pinsFarnell Part No 9729038
CB EnclosureLoad side of CBs are easily accessible
By using a 4mm2 (yellow) crimp lug and crimping a 2.6mm Brass welding rod in it
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CB Enclosure
Neutrals are easily removedBy the use of turned plugs
NextCable should be min of 50 strand for flexibility
ImprovementsAdd/incorporate a handle into board
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ImprovementsAdd/incorporate a handle into boardAdd spacers in-between clamping plate and back of
lid
The front of the lid between the screws tends to bow outward
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ImprovementsAdd/incorporate a handle into boardAdd spacers in-between clamping plate and back of
lidPass the socket connecting wires through PCB
before soldering
Solder
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Equipment Requirements
See supplied equipment list
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More Information?
Moss Vale TAFE Kirkham Street Moss ValePhone: 4868 0132 MondaysMobile: 0418 460 220Email: [email protected]
Contact: Allan Goodger
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