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Old 7th April 2015, 20:32   #931
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Default Re: Tools for a DIYer

2.5 sq.mm cables should be good enough for 15A, but should be derated if wound up.

Here is the current carnying capacity for various wires

https://electricalnotes.wordpress.co...urrent-rating/
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Old 8th April 2015, 15:17   #932
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Default Re: Tools for a DIYer

So I bought a box of Polycab 2.5sqmm 90meters for another project; cost me 1550+taxes.

Finolex 3 core 2.5sqmm cable sheathed was ~80rs per meter. Pretty expensive considering you can take my earlier approach and save ~800rs outright for the same cables.

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Quote:
Originally Posted by Aroy View Post
2.5 sq.mm cables should be good enough for 15A, but should be derated if wound up.

Here is the current carnying capacity for various wires

https://electricalnotes.wordpress.co...urrent-rating/
I saw similar numbers printed on the Polycab box as well :

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Since the loads I will be running (1800W) equates to 9-10A and well within 14-16A rated for 1.5sqmm, I'll stick with what I have.
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Old 8th April 2015, 22:55   #933
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Default Re: Tools for a DIYer

But wait... the box is 3-core, sheathed cable, but the numbers are for "single-core unsheathed?"

I'm confused!
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Old 9th April 2015, 06:32   #934
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Quote:
Originally Posted by Thad E Ginathom View Post
But wait... the box is 3-core, sheathed cable, but the numbers are for "single-core unsheathed?"

I'm confused!
Box is for single core unsheathed cables He had a big roll of sheathed 3 core 2.5sqmm cables for which I asked him the price and got a quote. Hope it cleared all doubts!
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Old 10th April 2015, 18:57   #935
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Default Re: Tools for a DIYer

It is safer to derate the current carnying capacity further if
. It is a 3-core cable
. Ambient is high, say >35 degrees
. Length is great, say > 25m

You can easily calculate the heat generated from the unit resistance of the conductors. If it is > 40 degrees over 1/2 hour, the cable will need cooling, else it will overheat.
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Old 11th April 2015, 09:28   #936
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Default Re: Tools for a DIYer

Got a Tesa tape (51208) for wire harnessing:

Tools for a DIYer-wp_20150410_21_15_00_pro.jpg

25 mm x 25 m roll. This has a higher temperature resistance and can be used in the engine compartment going by this chart published by Tesa:

Tools for a DIYer-tesa.png

Have also ordered a roll of 51608 (19 mm x 25 m) for backup.
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Old 11th April 2015, 11:45   #937
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Default Re: Tools for a DIYer

Quote:
Originally Posted by Gannu_1 View Post
Got a Tesa tape (51208) for wire harnessing:
I have used this. It works pretty well. Thanks for the Image Gannu.
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Old 11th April 2015, 22:49   #938
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Quote:
Originally Posted by Gannu_1 View Post
Got a Tesa tape (51208) for wire harnessing:

Attachment 1359416

25 mm x 25 m roll. This has a higher temperature resistance and can be used in the engine compartment going by this chart published by Tesa:

Attachment 1359417

Have also ordered a roll of 51608 (19 mm x 25 m) for backup.
Hi Gannu,

Can you please provide the source from where you purchased this? Are their any online sites available.

Thanks,
Venki
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Old 12th April 2015, 10:30   #939
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Quote:
Originally Posted by venki7744 View Post
Hi Gannu,

Can you please provide the source from where you purchased this? Are their any online sites available.

Thanks,
Venki
Venki, I bought these from Aliexpress. The dealer goes by the ID butler xu. He shipped them from Hong Kong.
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Old 12th April 2015, 10:46   #940
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Default Re: Tools for a DIYer

I am looking to buy a Bench Vise for short term use. Should be something that I can fix on easily enough on to a wooden table/ stool/ stone shelf anywhere and handle a maximum width of 3 inches at minimum. Has anyone ever bought any such thing?

Last I remember seeing such was in the workshop in engineering college many years back.

Guidance will be appreciated, especially with links.
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Old 12th April 2015, 20:31   #941
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Default Re: Tools for a DIYer

Quote:
Originally Posted by Gannu_1 View Post
Venki, I bought these from Aliexpress. The dealer goes by the ID butler xu. He shipped them from Hong Kong.
Had ran out of Tesa tape. Placed order on Aliexpress from butler xu. Man that guy is fast. Paid and within hours I got confirmation that item is shipped and a message saying if the item is not delivered in good condition, he can replace it! Thanks for sharing info about this dealer Gannu. He is good!
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Old 14th April 2015, 10:41   #942
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Quote:
Originally Posted by latentpotential View Post
I am looking to buy a Bench Vise for short term use. Should be something that I can fix on easily enough on to a wooden table/ stool/ stone shelf anywhere and handle a maximum width of 3 inches at minimum. Has anyone ever bought any such thing?

Last I remember seeing such was in the workshop in engineering college many years back.

Guidance will be appreciated, especially with links.
There are these portable bench vices which clamp to the work bench like this:

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The usual ones come with 2 or 4 holes for the mount. Check ebay.in and your local hardware stores - might be cheaper there and you can save on the shipping expenses.
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Old 14th April 2015, 13:11   #943
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Default Re: Tools for a DIYer

Anybody tried the snap and grip universal spanners ? The advertisements claim that one wrench can be used for different sized fasteners and also can be used on stripped hex nuts. Would be excellent to carry on a motorcycle.

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Old 14th April 2015, 13:28   #944
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Default Re: Tools for a DIYer

^^

I purchased this and found out that the quality was not upto the mark and returned it. Moreover it was only useful for low torque application. For the Price quoted, we can buy good quality Hexagonal ring spanners(or channel locks) and live peacefully.
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Old 14th April 2015, 13:31   #945
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Default Re: Tools for a DIYer

I suspect that there is nothing to beat the right spanner/wrench for the right nut, but also, in an emergency, or for a car/bike mobile toolkit, a one-size-fits-all multi-solution tool would be a godsend. No, I haven't tried that sort of wrench, but you've got me temped to add one to the collection!

I posted a pic including my vice sometime back. Here's a link to it. This one came from UK, but Stanley tools are easily available here, so it could probably be found. Note the ball joint that allows the vice to be fixed at all kinds of angle, and also not the rubber jaw covers.

I'm sad that I left two vices behind in UK when I moved here. One was a big thing, made to be built in to a carpenter's bench (I inherited the bench and the vice with a house I moved into) and the other was a miniature jewellery vice.



(this is not a link to an external image: it is a link to an image already posted on T-BHP. Hope that is ok)

Last edited by Thad E Ginathom : 14th April 2015 at 13:33.
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