Hello. I am asking for information on how much kW a 4x120 alu cable for continuous single-shift operation can pull, I have designed such a cable and I am wondering if I should give it a bit more if I need to increase power in the future, I will add that the cable is about 80m long. Thank you in...

It depends on the arrangement and a few other details, but roughly for 400V, it is from 130 to 160kW.

When laid in the ground, it is a long-term current carrying capacity of 188 A, i.e. about 108 kW.

Thank you very much for your answer . Are these 108 kW or is this the maximum load?? What will happen when the electricity consumption is 130 kW???

These 188 A is the maximum allowable current for long-term operation. If more flows, the temperature of the conductor will start to increase relative to the overload of the cable.

Buddy, the tables give different current carrying capacity, these 130 kW will also transfer as a colleague wrote in probably the second post.

Thank you very much for the answers, I think that for peace of mind I will arrange 4 x150 and I will have a supply for the future.

Oh buddy, it's not a cable as you write, but a YAKY cable. Regards

One colleague wrote: Maybe I'll add something from myself to verify the answers :) Ps. Do not forget about the correction factors and the use of appropriate tables - mine comes from the Institute of Power Engineering

The Guidelines for Measurements in the Power Sector confirm the truth of my colleague Akrzy For 3-4-core cables laid permanently in the ground, the long-term load capacity of cables with paper, rubber and PVC insulation: vein cross-section | current -------------------------- 50mm2 | 165A 70mm2 | 205A 95mm2 | 240A 120mm2 | 275A 150mm2 | 315A 185mm2 | 355A

Hello. The same is stated by Prof. Henryk Markiewicz in his book Electrical installations ed. II changed.

Maximum kW Load Capacity for YAKY 4x120 Aluminum Cable Over 80m Distance

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#1 8038852 05 May 2010 17:20

PAWPIO1 PAWPIO1

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Post #1
8038852 05 May 2010 17:20

Hello.
I am asking for information on how much kW a 4x120 alu cable for continuous single-shift operation can pull, I have designed such a cable and I am wondering if I should give it a bit more if I need to increase power in the future, I will add that the cable is about 80m long. Thank you in advance for your response.
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#2 8038896 05 May 2010 17:32

sq9jjh sq9jjh

Electrician specialist

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Post #2
8038896 05 May 2010 17:32

PAWPIO1 wrote:
Hello.
I am asking for information on how much kW the 4x120 alu cable can pull for continuous single-shift operation,

It depends on the arrangement and a few other details, but roughly for 400V, it is from 130 to 160kW.
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#3 8038927 05 May 2010 17:40

michuszcze michuszcze

Level 17

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Post #3
8038927 05 May 2010 17:40

When laid in the ground, it is a long-term current carrying capacity of 188 A, i.e. about 108 kW.
#4 8039018 05 May 2010 18:00

PAWPIO1 PAWPIO1

Level 2

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Post #4
8039018 05 May 2010 18:00

michuszcze wrote:
When laid in the ground, it is a long-term current carrying capacity of 188 A, i.e. about 108 kW.

Thank you very much for your answer .
Are these 108 kW or is this the maximum load??
What will happen when the electricity consumption is 130 kW???
#5 8039284 05 May 2010 18:55

MrMazi MrMazi

Level 16

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Post #5
8039284 05 May 2010 18:55

These 188 A is the maximum allowable current for long-term operation. If more flows, the temperature of the conductor will start to increase relative to the overload of the cable.
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#6 8039341 05 May 2010 19:06

michuszcze michuszcze

Level 17

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Post #6
8039341 05 May 2010 19:06

Buddy, the tables give different current carrying capacity, these 130 kW will also transfer as a colleague wrote in probably the second post.
#7 8039366 05 May 2010 19:11

PAWPIO1 PAWPIO1

Level 2

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Post #7
8039366 05 May 2010 19:11

Thank you very much for the answers, I think that for peace of mind I will arrange 4 x150 and I will have a supply for the future.
#8 8039397 05 May 2010 19:16

michuszcze michuszcze

Level 17

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Post #8
8039397 05 May 2010 19:16

Oh buddy, it's not a cable as you write, but a YAKY cable.
Regards
#9 8040271 05 May 2010 21:46

Akrzy74 Akrzy74

Rest in Peace

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Post #9
8040271 05 May 2010 21:46

One colleague wrote:
Quote:
Buddy, the tables indicate the current carrying capacity differently; When laid in the ground, it is a long-term current carrying capacity of 188 A

Maybe I'll add something from myself to verify the answers :)

Ps. Do not forget about the correction factors and the use of appropriate tables - mine comes from the Institute of Power Engineering
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#10 8044858 06 May 2010 22:02

Miwhoo Miwhoo

Electric installations specialist

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Post #10
8044858 06 May 2010 22:02

The "Guidelines for Measurements in the Power Sector" confirm the truth of my colleague Akrzy
For 3-4-core cables laid permanently in the ground, the long-term load capacity of cables with paper, rubber and PVC insulation:

vein cross-section | current
--------------------------
50mm2 | 165A
70mm2 | 205A
95mm2 | 240A
120mm2 | 275A
150mm2 | 315A
185mm2 | 355A
#11 8044931 06 May 2010 22:14

elpapiotr elpapiotr

Electrician specialist

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Post #11
8044931 06 May 2010 22:14

Hello.

The same is stated by Prof. Henryk Markiewicz in his book "Electrical installations" ed. II changed.
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Topic summary

The discussion revolves around the load capacity of a YAKY 4x120 aluminum cable for continuous single-shift operation over a length of approximately 80 meters. Responses indicate that the cable can handle a long-term current carrying capacity of about 188 A, translating to approximately 108 kW. However, some sources suggest that it can also support loads up to 130 kW, depending on the arrangement and installation conditions. It is emphasized that exceeding the maximum allowable current can lead to increased conductor temperatures, potentially causing damage. The original poster considers upgrading to a 4x150 cable for future power needs. Additional references to guidelines and tables for cable load capacities are provided.
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