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Discuss "The Great Debate" - Plug Top or just Plug? in the UK Electrical Forum area at ElectriciansForums.net
what about the lamps/bulbs along the circuit, not at the end? don't they require protection also?With incandescent lights a 3 amp fuse will often blow when the bulb fails, a 5amp one won't.
But the fuse is to protect the cable not the lamp on the end of it.
As you say: some Electricians aren't very bright.
both at the same time? piggybacked? and what fuses do you fit in plug bottomsOnly ever use 13a and 5a fuses in plug tops
what about the lamps/bulbs along the circuit, not at the end? don't they require protection also?
Some electricians are not very bright, are they?
And how many table lamps actually use old GLS filament lamps these days, very few I'd suggest. All the table lamp manufacturers who fit 3 amp fuses during manufacture can't be very bright either I suppose ?
Only ever use 13a and 5a fuses in plug tops
what about the lamps/bulbs along the circuit, not at the end? don't they require protection also?
The 3a fuse is a habit from pat testing where rewirable plug tops on items <700w should have 3a fuses. Anything else 13a.
And mandatory for old appliances (often table lamps) that have 0.5mm² cable fitted.The 3a fuse is a habit from pat testing where rewirable plug tops on items <700w should have 3a fuses.
Except presumably when you encounter one of said 0.5mm² cables.Only ever use 13a and 5a fuses in plug tops
Bulbs have built in protection. Most of the rest of the world don't have fuses in plugs and don't come to harm.
It appeals to me too but not for voltage related reasons - what equipment were you working on? We have a lovely Rank Cintel MKIII telecine that kicks out biphase to sync to an Albrecht MB51 sound follower.This one will appeal to George. Today, I was getting incorrect counts on a timecode generator that is driven with biphase from an optical encoder. Scoped the biphase lines and they were all over the shop. Checked the +5V supply from the box to the encoder, there's 100Hz ripple on it which is mucking up the encoder operation.
It's an American unit, which I am powering from the 230V mains here in Estonia, via a step-down autotransformer. Hmm, I thought, maybe my step-down is giving too low a voltage for the unit, causing the DC rail to drop out of regulation. Let's see what the supply voltage is, and what it is supposed to be.
Transformer output rating: 110V. Actual: 115V
TCG rated operating voltage: 115V
So, no, nothing to do with 110V vs. 115V vs. 120V. Actually, a bona fide failed capacitor in the power supply. It's working now.
This one will appeal to George. Today, I was getting incorrect counts on a timecode generator that is driven with biphase from an optical encoder. Scoped the biphase lines and they were all over the shop. Checked the +5V supply from the box to the encoder, there's 100Hz ripple on it which is mucking up the encoder operation.
It's an American unit, which I am powering from the 230V mains here in Estonia, via a step-down autotransformer. Hmm, I thought, maybe my step-down is giving too low a voltage for the unit, causing the DC rail to drop out of regulation. Let's see what the supply voltage is, and what it is supposed to be.
Transformer output rating: 110V. Actual: 115V
TCG rated operating voltage: 115V
So, no, nothing to do with 110V vs. 115V vs. 120V. Actually, a bona fide failed capacitor in the power supply. It's working now.
How? There is nowhere to put a fuse in the top.
There's a little set of tinned or brassy contacts in the plug top where the fuse goes. If you like I can draw you some pictures to explain. Anybody got some crayons?
You'll find they are in the plug bottom. Dare I say it? You are not very bright are you?
Don’t be daft, there ain’t such a thing as a plug bottom, thicky.
ther is a plug top and a plug bottom. it's the bottom that holds the terminals and the top that keeps fingers out. in it's entirity, it's a plug.
You and Tel uping your post count again, I see, LOLWould you class the bit that holds the cable the 'plug middle'... or am I just being thick again....??
You and Tel uping your post count again, I see, LOL
if you plugged a plug into a cheesecake, would it affect the circuit IR readings?
Right I get you,I like to contribute to these fascinating discussions mate...
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