Need an inverter recommendation: Best of the worst?

[Tasemu]

1 hour ago, WotEver said:

They’ll be short because they’ll be too small (as in mm²)to be longer. 

 

If you tell tell us what length you want we can tell you what size to use. I’m going to take a wild guess at 70mm² but it totally depends on the length, it could be larger. As you’re fitting a 300A fuse you certainly don’t want anything smaller than that. 

I shouldnt need more than a meter

[WotEver]

9 minutes ago, Tasemu said:

I shouldnt need more than a meter

You’ll be fine with 70mm² then. You may want to find a boat yard to make them up for you with crimped terminals. 

 

The same yard can probably supply the megafuse holder and fuse. 

[Tasemu]

4 hours ago, WotEver said:

You’ll be fine with 70mm² then. You may want to find a boat yard to make them up for you with crimped terminals. 

 

The same yard can probably supply the megafuse holder and fuse. 

Is this what I want to get? 20mm version as I cannot see a 17mm version.

 

https://www.autoelectricsupplies.co.uk/product/752

 

1x - 1m red cable

1x - 2m black cable

Edited March 21, 2019 by Tasemu

[Tasemu]

edit: forgot to add link

[Alan de Enfield]

40 minutes ago, Tasemu said:

Is this what I want to get? 20mm version as I cannot see a 17mm version.

 

https://www.autoelectricsupplies.co.uk/product/752

 

1x - 1m red cable

1x - 2m black cable

70mm² NOT 17mm

 

As they don't offer a 70mm2, you would need to up the size to 95mm2 (010607 684/0.40 95mm², 19.7mm OD, 500A )

 

Or try another supplier.

[rusty69]

2 minutes ago, Alan de Enfield said:

70mm² NOT 17mm

 

As they don't offer a 70mm2, you would need to up the size to 95mm2 (010607 684/0.40 95mm², 19.7mm OD, 500A )

 

Or try another supplier.

I used 70mm2 welding cable from Oxford welding supplies.... But im an eeejut. 

[WotEver]

3 minutes ago, Alan de Enfield said:

70mm² NOT 17mm

 

As they don't offer a 70mm2, you would need to up the size to 95mm2 (010607 684/0.40 95mm², 19.7mm OD, 500A )

 

Or try another supplier.

This. 

[Tasemu]

Holy shit, they only offer a 10m roll and its over £100

[rusty69]

3 minutes ago, Tasemu said:

Holy shit, they only offer a 10m roll and its over £100

Ebay is your friend (if you have an account).

[Alan de Enfield]

4 minutes ago, Tasemu said:

Holy shit, they only offer a 10m roll and its over £100

B = Bring

O = Out

A = Another

T = Thousand Pounds

[rusty69]

6 minutes ago, Alan de Enfield said:

B = Bring

O = Out

A = Another

T = Thousand Pounds

That is BOATP!

[Tasemu]

Guess i'll hit ebay

[WotEver]

2 hours ago, rusty69 said:

I used 70mm2 welding cable from Oxford welding supplies.... But im an eeejut. 

That’s where I buy it too. Flexible and cheap (comparatively). 

But I can also crimp the terminals which I’ll guess OP can’t. 

[rusty69]

13 minutes ago, WotEver said:

That’s where I buy it too. Flexible and cheap (comparatively). 

But I can also crimp the terminals which I’ll guess OP can’t. 

I bought one of the cheapy ebay crimpers. Time will tell how good it was, but seems ok so far with some glue lined heat shrink sleeving.

[WotEver]

2 minutes ago, rusty69 said:

I bought one of the cheapy ebay crimpers. Time will tell how good it was, but seems ok so far with some glue lined heat shrink sleeving.

You don’t need to crimp heat shrink sleeving...

[Alan de Enfield]

10 minutes ago, WotEver said:

You don’t need to crimp heat shrink sleeving...

He means the crimper didn't work, but the glue lined H/S is holding.

[rusty69]

5 minutes ago, Alan de Enfield said:

She means the crimper didn't work, but the glue lined H/S is holding.

Exactly, they are glued on with Gluons!

Edited March 21, 2019 by rusty69

[Alan de Enfield]

1 minute ago, rusty69 said:

Exactly, they are glued on!

[rusty69]

Just now, Alan de Enfield said:

Over-easy?

[cuthound]

14 hours ago, rusty69 said:

I used 70mm2 welding cable from Oxford welding supplies.... But im an eeejut. 

 

Welding cable is great because unlike most thick cables it is very flexible.

 

Goes up to 150mm2 can as well.

Edited March 22, 2019 by cuthound
To add the last paragraph

[rusty69]

1 minute ago, cuthound said:

 

Welding cable is great because unlike most thick cables it is very flexible.

It was certainly easier to route than some cable i have previously used, I guess because it has more individual strands. 

[cuthound]

6 minutes ago, rusty69 said:

It was certainly easier to route than some cable i have previously used, I guess because it has more individual strands. 

 

Yes, it is made up of hundreds, if not thousands of fine strands rather than the large (1.00mm2 ??) strands of conventional cable.

 

I first came across it being used to connect mobile (trailer mounted) generator sets.

 

The large ones (1250kVA) used up to 20 × 150mm2 cables in parallel per phase plus neutral to meet current and volt drop criteria, because it wasn't usually possible to get them close to where they were needed, hence very long cable runs.

Edited March 22, 2019 by cuthound
Spillung

[rusty69]

1 minute ago, cuthound said:

Yes, it is made up of hundreds, if not thousands of fine strands rather thsn the large (1.00mm2 ??) strands of conventional cable

Ah, you sound like an hexpert. 

 

How does the current carrying capacity of the finer strand stuff compare with the bigger, fewer conductor stuff?

 

I assume more copper = more current carrying capacity . But then how can they both be described as 70mm2. 

[Boater Sam]

 

 

It is easier to use but crimping rings onto it is more difficult due the the size of the wire bundle and it has to have a pin crimp on the terminal end because it is poor in screw up terminals.

It carries current better than 19 strand cable due to the phenomena that most of the current is carried on the outside of each strand, strange but true.

Edited March 22, 2019 by Boater Sam

[cuthound]

13 minutes ago, rusty69 said:

Ah, you sound like an hexpert. 

 

How does the current carrying capacity of the finer strand stuff compare with the bigger, fewer conductor stuff?

 

I assume more copper = more current carrying capacity . But then how can they both be described as 70mm2. 

 

Both have a 70mm2 csa of copper strands, however the welding cable is a smaller outside diameter and uses a much more flexible insulation material. The cable we used was insulated with a pinky brown tape rather than extruded pvc.

 

So both can carry the same current subject to the same installation conditions.

Edited March 22, 2019 by cuthound
Clarification