Australian Politics Forum - WA back on track

BatteriesNotIncluded

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Re: WA back on track
Reply #75 - Mar 8^th, 2016 at 5:15pm

Jovial Monk wrote on Mar 8^th, 2016 at 5:08pm:

Bah.

Here is a nice post from Whirlpool:

Quote:

The problem with passive/fan type of cooling is that the temperature inside the cabinet will never get below the outside ambient temperature which means the electronics will have cope with temperatures of 40C+ degrees.

To keep the FTTN working in high temperatures

1. The electronics will be of high quality (military grade) expensive.
2. The speed get throttled back and maybe to a point where they shut down.
3. The cabinets use refrigerated cooling also expensive.

All not very nice options.

When designing a system and its critical you have to design for the worst possible conditions so the cabinets to operate at 50C degrees.

P.S. When Tasmania was connected to the national electricity the major power sub station was only designed to operate up to 35C degrees, first hot day came along and the sub station shutdown.

Mr,Wizzard

http://forums.whirlpool.net.au/forum/index.cfm?action=reply&r=48852574

^{Systems versus Ideals: the liberal voter is stuck in their head.. it's called ego and the cure is hubris!

GET READY FOR A CHANGE OF GOVERNMENT!!}

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Neferti Gold Member Offline Posts: 7965 Canberra Gender:	Re: WA back on track Reply #76 - Mar 8^th, 2016 at 5:17pm IF you are curious about when the NBN will come to your address, check here: http://www.iinet.net.au/internet/broadband/nbn/coverage/
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BatteriesNotIncluded

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Re: WA back on track
Reply #77 - Mar 8^th, 2016 at 5:19pm

Neferti wrote on Mar 8^th, 2016 at 5:17pm:

IF you are curious about when the NBN will come to your address, check here:

http://www.iinet.net.au/internet/broadband/nbn/coverage/

Why would I be curious when copper internet lifts it's lamb like dress to reveal its ugly and previously banished but still thankfully hidden smelly thing Grin

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*Sure....they're anti competitive as any subsidised job is. It wouldn't be there without the tax payer. Very damned difficult for a brainwashed collectivist to understand that I know.... (swaggy) *

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Its time Gold Member Offline Boot libs out Posts: 25639 Gender:	Re: WA back on track Reply #78 - Mar 8^th, 2016 at 5:20pm Neferti wrote on Mar 8^th, 2016 at 5:17pm: IF you are curious about when the NBN will come to your address, check here: http://www.iinet.net.au/internet/broadband/nbn/coverage/ I am hoping it comes nowhere near my place until after election
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lee

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Re: WA back on track
Reply #79 - Mar 8^th, 2016 at 5:30pm

Jovial Monk wrote on Mar 8^th, 2016 at 1:36pm:

The node cabinets have heat exchangers in them which cannot cope with temperatures over 30°C.

BatteriesNotIncluded wrote on Mar 8^th, 2016 at 5:15pm:

P.S. When Tasmania was connected to the national electricity the major power sub station was only designed to operate up to 35C degrees, first hot day came along and the sub station shutdown.

So now it is a major power sub station and 35º.

BTW the link needs a password.

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Vic

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Re: WA back on track
Reply #80 - Mar 8^th, 2016 at 5:34pm

Its time wrote on Mar 8^th, 2016 at 5:20pm:

Neferti wrote on Mar 8^th, 2016 at 5:17pm:

IF you are curious about when the NBN will come to your address, check here:

http://www.iinet.net.au/internet/broadband/nbn/coverage/

I am hoping it comes nowhere near my place until after election

Won't come anywhere near me in the near future. I am in an ultra safe Liberal electorate therefore the Coalition are too busy running it in Labor electorates to try and get votes - so pitiful is their current support base

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BatteriesNotIncluded

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Re: WA back on track
Reply #81 - Mar 8^th, 2016 at 5:35pm

lee wrote on Mar 8^th, 2016 at 5:30pm:

Jovial Monk wrote on Mar 8^th, 2016 at 1:36pm:

The node cabinets have heat exchangers in them which cannot cope with temperatures over 30°C.

BatteriesNotIncluded wrote on Mar 8^th, 2016 at 5:15pm:

P.S. When Tasmania was connected to the national electricity the major power sub station was only designed to operate up to 35C degrees, first hot day came along and the sub station shutdown.

So now it is a major power sub station and 35º.

BTW the link needs a password.

btw, it's 2016 and malcolm turnbull is fingered with his copper internet operating system for the clever country in the asian century that we built that your family actually died for

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*Sure....they're anti competitive as any subsidised job is. It wouldn't be there without the tax payer. Very damned difficult for a brainwashed collectivist to understand that I know.... (swaggy) *

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BatteriesNotIncluded

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Re: WA back on track
Reply #82 - Mar 8^th, 2016 at 5:36pm

Vic wrote on Mar 8^th, 2016 at 5:34pm:

Its time wrote on Mar 8^th, 2016 at 5:20pm:

Neferti wrote on Mar 8^th, 2016 at 5:17pm:

IF you are curious about when the NBN will come to your address, check here:

http://www.iinet.net.au/internet/broadband/nbn/coverage/

I am hoping it comes nowhere near my place until after election

Won't come anywhere near me in the near future. I am in an ultra safe Liberal electorate

therefore the Coalition are too busy running it in Labor electorates to try and get votes

- so pitiful is their current support base

How's that going to work Grin

?

^{They're fingered on every angle of dice throw mathematically possible}

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*Sure....they're anti competitive as any subsidised job is. It wouldn't be there without the tax payer. Very damned difficult for a brainwashed collectivist to understand that I know.... (swaggy) *

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Jovial Monk

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Re: WA back on track
Reply #83 - Mar 8^th, 2016 at 5:46pm

Another interesting post:

Quote:

WhatThe writes...
They wont last as long as the manufacturer states – the manufacturer of the battery states expected life under ideal conditions with ambient temperature (inside the cabinet) at 20c.

To determine the expected lifetime, the batteries are actually run at a high temperature (around 80 deg IIRC) until they fail (much less than a year).

The lifetime of 10 years at 25 deg is extrapolated from this figure.

The minister wanted smaller cabinets for political reasons. The engineers will have done their best to keep temperatures down, but management aided design (MAD) is not a great paradigm.

So Turncoat was worried about the public being upset by large cabinets so now all the electronics are crammed into tiny cabinets which have trouble coping with heat so the public is going to get upset by losing phone and internet on hot days.

Speeds will be reduced as the node tries to maintain service and will eventually shut down. When whole areas get cut over to the obsolete crap the heat inside the cabinets is going to be intense and then we get a series of 40°C+ days. You reckon the nodes won’t shut down then? Telstra RIMS do.

I love “management aided design (MAD)” Grin

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lee

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Re: WA back on track
Reply #84 - Mar 8^th, 2016 at 6:09pm

Jovial Monk wrote on Mar 8^th, 2016 at 5:46pm:

Another interesting post:

Quote:
WhatThe writes...
They wont last as long as the manufacturer states – the manufacturer of the battery states expected life under ideal conditions with ambient temperature (inside the cabinet) at 20c.

To determine the expected lifetime, the batteries are actually run at a high temperature (around 80 deg IIRC) until they fail (much less than a year).

The lifetime of 10 years at 25 deg is extrapolated from this figure.

The minister wanted smaller cabinets for political reasons. The engineers will have done their best to keep temperatures down, but management aided design (MAD) is not a great paradigm.

So Turncoat was worried about the public being upset by large cabinets so now all the electronics are crammed into tiny cabinets which have trouble coping with heat so the public is going to get upset by losing phone and internet on hot days.

Speeds will be reduced as the node tries to maintain service and will eventually shut down. When whole areas get cut over to the obsolete crap the heat inside the cabinets is going to be intense and then we get a series of 40°C+ days. You reckon the nodes won’t shut down then? Telstra RIMS do.

I love “management aided design (MAD)”

Nothing about FTTN cabinet failure at 30ºC as stated.

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Jovial Monk

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Re: WA back on track
Reply #85 - Mar 8^th, 2016 at 6:16pm

I did read it and a lot of the contributors at Whirlpool are very knowledgeable and work in this field.

Next summer with more nodes and more subscribers per node (assuming Malcolm doesn’t get a rush of common sense to the head) there will be many nodes shut down or operate at minimum level in the heat. Larger cabinets would have been better.

I did read of cabinets failing and the various techs I talked to all said the heat exchanger can only cope up to a certain temperature.

Will not affect me, I have no intention of subscribing to FTTN.

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lee Gold Member Offline Australian Politics Posts: 19922 Gender:	Re: WA back on track Reply #86 - Mar 8^th, 2016 at 6:19pm Jovial Monk wrote on Mar 8^th, 2016 at 6:16pm: I did read of cabinets failing and the various techs I talked to all said the heat exchanger can only cope up to a certain temperature. OK I will accept your word for it. Confirmation would have been nice though.
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Jovial Monk Gold Member Offline Dogs not cats! Posts: 51474 Gender:	Re: WA back on track Reply #87 - Mar 8^th, 2016 at 6:42pm Yeah, trying to remember where I read it. Have a read of that NBN Aust website and see that FTTN is a bit of a disaster all round.
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Neferti

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Re: WA back on track
Reply #88 - Mar 8^th, 2016 at 6:43pm

Jovial Monk wrote on Mar 8^th, 2016 at 6:16pm:

I did read it and a lot of the contributors at Whirlpool are very knowledgeable and work in this field.

Next summer with more nodes and more subscribers per node (assuming Malcolm doesn’t get a rush of common sense to the head) there will be many nodes shut down or operate at minimum level in the heat. Larger cabinets would have been better.

I did read of cabinets failing and the various techs I talked to all said the heat exchanger can only cope up to a certain temperature.

Will not affect me, I have no intention of subscribing to FTTN.

Most Whirlpool guys are kids ........ you are their Great Grandfather. Do you play any online games, at all? That's what they care about ....... ONLINE Games ........ ask them .... Wink

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Its time

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Re: WA back on track
Reply #89 - Mar 8^th, 2016 at 6:44pm

Neferti wrote on Mar 8^th, 2016 at 6:43pm:

Jovial Monk wrote on Mar 8^th, 2016 at 6:16pm:

I did read it and a lot of the contributors at Whirlpool are very knowledgeable and work in this field.

Next summer with more nodes and more subscribers per node (assuming Malcolm doesn’t get a rush of common sense to the head) there will be many nodes shut down or operate at minimum level in the heat. Larger cabinets would have been better.

I did read of cabinets failing and the various techs I talked to all said the heat exchanger can only cope up to a certain temperature.

Will not affect me, I have no intention of subscribing to FTTN.

Most Whirlpool guys are kids ........ you are their Great Grandfather. Do you play any online games, at all? That's what they care about ....... ONLINE Games ........ ask them .... Wink

it

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