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The Related Link shows a transformer inside a metal cabinet, supplied with 120VAC protected by a fuse and the standard neutral connection back to the supply. There is a ground connection from the supply to ground, but there is no ground connection shown for the metal cabinet.
The question asks, if the (fused) hot side of the transformer shorts to the metal cabinet, will the fuse blow?
The answer depends on whether or not the metal cabinet is grounded.
If it is not grounded, as implied in the diagram, then the fuse will not blow, because there is no circuit formed to do so. Additionally, AND MORE CRITICALLY, this would energize the metal cabinet, creating an electrocution hazard.
However, it must be noted that per the NEC (US) and most probably any other country's electrical code, such a metal cabinet MUST be grounded.
IF, AND ONLY IF, the metal cabinet is grounded, then the fuse will blow, due to the additional fact that neutral and ground are connected together at the distribution panel (again, by code), and again, at the service entrance, and this will form a high current circuit sufficient to blow the fuse and prevent an electrocution hazard.
FYI - If I encountered such an ungrounded condition in a metal cabinet, I would do everything in my power to cause the installing electrician to lose his or her license. Additionally, if this caused an electrocution (whether fatal or not) I would sue said electrician for everything they were worth, and I would probably win, even though that would not bring back the person that died. This type of malfeasance should not and cannot be tolerated.
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What is 13 amp plug?
It's the standard Type 'G' 3-pin plug used in the UK for electrical equipment and appliances. It should always contain a cartridge fuse of the right size to match the current or "amperage" drawn by the equipment/appliance it is supplying with power. Standard fuses to fit the plug are available in 13 amp, 5 amp, 3 amp and 1 amp sizes. For more information see the Related Link and the answer to the Related Question shown below.
What is exactly the function of Neutral link in an electrical circuit?
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What is the difference between gG fuse and gM fuse?
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What does a 35 amp time delay fuse look like when it blows?
If you can observe the fusible link it should be open and there should be some charring on the glass. Use an Ohm meter to confirm fuse is blown. If it is zero ohms across the fuse it is not blown.
What does the interrupting capacity of a fuse indicate?
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Can you blow the overdrive relay out of your 1991 Volvo 940 turbo wagon by putting a 30 watt fuse. in it when asking for a 15 watt fuse in it?
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Which protects equipment from receiving too much electrical current by providing a weak link?
fuse
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Where is the alternator fuse on a 1992 Buick Century?
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How do you change a fuse link?
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Where is the fuse for your 1995 Chrysler lebaron convertible top updown located--not shown on the fuse panel?
The fuse you seek is #5 in the fuse box located to the left of the steering column. Lots of Lebaron info via this link http://www.automotiveforums.com/vbulletin/forumdisplay.php?f=1298
What do you do when you've blown a fuse?
A fuse is a deliberate weak link which will be blown if there is a power overload. When you blow a fuse, take the blown fuse out and throw it away as you would a blown light bulb, and replace it with another fuse of the same type. * In the old-timey fuse boxes a penny could be substituted for a fuse, but a penny is too strong to be blown, and the next overload will burn the house down.
Where is a fuse link located?
In a fuse box or it may be a self contained in line fuse.
2005 f-350 fuse diagram?
The add link isn't shown so ( www . motorcraft service . com ) no spaces Click on Owner Guides The owners manual ( which includes the fuse diagram ) can be viewed online
How do you change a fuse?
The fuse link is part of the wire that contains it. Unless there are connectors, which is doubtful, you have to change the entire piece of wire. Disconnect the battery and replace the wire. Before you do that, you should find and fix the problem that caused the link to fail in the first place, or it will blow again. Usually, fuse links are used between the battery and alternator, so this sounds like alternator failure.
