BICC or BS7671 comply for design

Anthony Sullivan over 4 years ago

Hello IET guys

I have a problem where a cable installed on site doesn't comply to Bs7671 current carrying capacity for underground cable reference method D

the engineer who design the cable used amtech and data from bicc with reference method 110.

Dose bicc comply? As its old data for cables install in any country from what I can see. I would have thought bs7671 design must be used?

Parents

0 Anthony Sullivan over 4 years ago

Thanks guys.

Im looking at this from a testing point of view so I don’t have all the answers. I’m just trying to understand the numbers

1 Depth of lay - 1m

2 - Spacing - 4” ducked?

3 - In ducts or buried direct - duck

4 - Ground Temperature - 20C A’s guess

5 - Soil Thermal Resistivity. Not too sure. I understand the area has a very high water table

6 - air temperature - normal uk of 30C

250a 60947-2 prob max load of 220a lugged connection to 250 60947-3

regard

tony
Cancel
Vote Up 0 Vote Down

Cancel

Reply

0 Anthony Sullivan over 4 years ago

Thanks guys.

Im looking at this from a testing point of view so I don’t have all the answers. I’m just trying to understand the numbers

1 Depth of lay - 1m

2 - Spacing - 4” ducked?

3 - In ducts or buried direct - duck

4 - Ground Temperature - 20C A’s guess

5 - Soil Thermal Resistivity. Not too sure. I understand the area has a very high water table

6 - air temperature - normal uk of 30C

250a 60947-2 prob max load of 220a lugged connection to 250 60947-3

regard

tony
Cancel
Vote Up 0 Vote Down

Cancel

Children

No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

BICC or BS7671 comply for design

Join us to get the best from IET EngX.

Community Rules & Guidelines