115v to 240v drills

[The_Yellow_Ardvark]

I have one.
I don't need the 115v drill.

 

[Barking Mat]

I have one.
I don't need the 115v drill.

Then WHY?

 

[brightspark]

I have one.
I don't need the 115v drill.

i have a fair few. rarely use em nowadays unless im on a job using them most of the day . just use rechargeable ones now. there just as powerfull

 

[The_Yellow_Ardvark]

Then WHY?

Go read post one

 

[Barking Mat]

Go read post one

No, shant.

 

[Barking Mat]

A debate is till going back and forth with 2 install engineers.
One old timer, who knows everything as he is " time served".
The other a younger man who thinks Googles has all the answers.

I started this by accident, by mentioning the fact I have 2 old school B&D drills. One 240v and one 115v

View attachment 296541

I mentioned that the 115v will be passed on as it is not practicable for me to use it, or MIS to use it.

Old timer replies:
"Oh it will be a simple swop of a few parts, as back then B&D ran all their tools down one line and only a few parts were changed, a simple job of swopping the parts. We used to do it all the time."
I asked for details.

Younger guy:
"It will not ne that simple, as 115 is used a lot and 240 is as well, different plugs and earth details. There will be a lot to change over and at least you will need a transformer. I will google it."

That's when they started the debate.

I am now leaving them to debate as I go round looking at their install.


I can see both sides. As I have had a B&D sander that was switchable from 115v to 240v.

I wonder what the forum thinks.

Oh, mass debating, I see.

 

[brightspark]

i hope you use that 240v drill through an rcd. i got my job because a 17 year old lad was electrocuted on a site with one bad for him good for me

 

[Pete.]

My Biax flaker is 110v and I'm swapping it to 240V just shortly. It involves changing the stator, the rotor and the variable speed control. Switch, brushes lead etc all the same. For those B&D drills you would swap the rotor and stator so yeah, swap a few parts but they are major components not mnor ones.

 

[brightspark]

My Biax flaker is 110v and I'm swapping it to 240V just shortly. It involves changing the stator, the rotor and the variable speed control. Switch, brushes lead etc all the same. For those B&D drills you would swap the rotor and stator so yeah, swap a few parts but they are major components not mnor ones.

armature and field coils . rotor and stator are induction motors

 

[bigegg]

armature and field coils . rotor and stator are induction motors

i *really* need to re-read that bit of the college textbook. Pees me off when I don't know stuff: but I had to concentrate on the stuff I needed to actually pass the exam

 

[Pete.]

armature and field coils . rotor and stator are induction motors

Semantics. Rotor = rotating part, stator = static part

 

[Brad93]

240 should last longer than 110v. A lot less current.

 

[bigegg]

240 should last longer than 110v. A lot less current.

or: 110v cables are thicker, so they last longer. double the current = 4x the cable area?

 

[Brad93]

or: 110v cables are thicker, so they last longer. double the current = 4x the cable area?

Possibly, I’m no electrician. Just in my mind it makes sense that higher voltage is less stress on the components.

 

[brightspark]

Possibly, I’m no electrician. Just in my mind it makes sense that higher voltage is less stress on the components.

the higher the voltage the thinner the cables need to be. lower the voltage the thicker the cabled needed because of the higher current . the lower the voltage the higher the amps the higher the voltage the lower the amps.as for the torque between the 2 there just the same

 

[eddie49]

higher voltage is less stress on the components.

I think that a lot of electrical failures are due to breakdown of insulation, and having double the voltage would mean more stress.
On the other hand, overheating is another cause of failure, and with half the voltage you need twice the current to get the same motor power, and since the heat in a conductor is based on current squared, that matters too....

 

[Memmeddu]

I think that a lot of electrical failures are due to breakdown of insulation, and having double the voltage would mean more stress.
On the other hand, overheating is another cause of failure, and with half the voltage you need twice the current to get the same motor power, and since the heat in a conductor is based on current squared, that matters too....

In fact from my point of there will be no difference

 

[the snooper]

Hmm, who actually cares ? these days, tools are cheap enough to have both, that's 30 seconds of my life I won't get back reading this thread

 

[brightspark]

Hmm, who actually cares ? these days, tools are cheap enough to have both, that's 30 seconds of my life I won't get back reading this thread

i dont .wherever i can get a good second hand one at the rite price who cares which

 

[Edward Teach]

This is interesting,
I have a Makita LS1214 110v Compound Mitre Saw, that I would prefer, if it was 240v.
I have looked at buying and swapping parts,
But that would cost more than I paid for the saw
Unless I find a cheap damaged unit to swap parts, I think I am stuck with a 110v saw for now