Problem with phasewire heat shrink :(

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SkipperDK   10 mW

10 mW
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Joined: Aug 04 2019 1:21pm

Problem with phasewire heat shrink :(

Post by SkipperDK » Feb 10 2020 2:19pm

Hey guys,

So i'm in the progress of overhauling the BBS01 and upon removal of the controller i find this problem with the green phasewire.

The insulation is missing :shock:

Can i put some new heatshrink on it, or what is your professional advise to this?

Best regards,
T
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HCx   100 µW

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Re: Problem with phasewire heat shrink :(

Post by HCx » Feb 10 2020 3:50pm

I'd use some marine heatshrink and RTV to stabilize the wire.

SkipperDK   10 mW

10 mW
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Joined: Aug 04 2019 1:21pm

Re: Problem with phasewire heat shrink :(

Post by SkipperDK » Feb 10 2020 3:52pm

HCx wrote:
Feb 10 2020 3:50pm
I'd use some marine heatshrink and RTV to stabilize the wire.
Yeah, that's just about my opt on it too. Thanks, mate.

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dogman dan   100 GW

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Re: Problem with phasewire heat shrink :(

Post by dogman dan » Feb 11 2020 7:55am

Wire looks cooked off to me, will resist a lot, and cook off again. Replace that wire. But if that wire cooked off that hot,, what did it do to the windings?

That motor is done carrying much wattage IMO. It got overloaded?

SkipperDK   10 mW

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Re: Problem with phasewire heat shrink :(

Post by SkipperDK » Feb 11 2020 1:05pm

dogman dan wrote:
Feb 11 2020 7:55am
Wire looks cooked off to me, will resist a lot, and cook off again. Replace that wire. But if that wire cooked off that hot,, what did it do to the windings?

That motor is done carrying much wattage IMO. It got overloaded?
Hi Dan,

Thank you for your input, the wire was not overcooked, the insulation got ripped off as I was removing the RTV at the grummet, there's nothing indicating as to a overheating problem and all the windings are still beautiful copper windings =)

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dogman dan   100 GW

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Re: Problem with phasewire heat shrink :(

Post by dogman dan » Feb 12 2020 9:42am

Oh,, I thought the wire should look brighter. In the picture it looks dull to me, which I have seen on roasted wires.

SkipperDK   10 mW

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Joined: Aug 04 2019 1:21pm

Re: Problem with phasewire heat shrink :(

Post by SkipperDK » Feb 12 2020 10:59am

dogman dan wrote:
Feb 12 2020 9:42am
Oh,, I thought the wire should look brighter. In the picture it looks dull to me, which I have seen on roasted wires.
Yeah, I can see on the picture it could look like it, but in real it looks as new =)

Punx0r   100 GW

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Re: Problem with phasewire heat shrink :(

Post by Punx0r » Feb 13 2020 3:35am

I think that's silicone insulation. It's good for high temperatures but can be pretty fragile

SkipperDK   10 mW

10 mW
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Joined: Aug 04 2019 1:21pm

Re: Problem with phasewire heat shrink :(

Post by SkipperDK » Feb 15 2020 5:19am

Punx0r wrote:
Feb 13 2020 3:35am
I think that's silicone insulation. It's good for high temperatures but can be pretty fragile
I think you're right. I gave et a couple of layers heat shrink and bonded it with RTV. It's working just fine again :)

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