Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

UHV/EHV Cables in aerial rack distance to Coke/Blast Furnace Gas

Jpascp

Electrical
Jan 15, 2025
24
Is there any standard that refers minimum distance between UHV/EHV Cables and Coke/Blast Furnace Gas?

Any EMC study must be done?
 
Replies continue below

Recommended for you

Is that a gas pipeline feeding the blast furnace? Or exhaust gases from the blast furnace? Would the area be explosive (i.e. classified)?
 
Are the cables passing through a hazardous area as classified by the applicable code?
The cables may or may not need to be rated for hazardous locations.
Are the cables passing through an area of high ambient temperatures?
The cables may need to be de-rated, or a higher temperature rated cable may be needed.
At lower voltages, Mineral Insulated cables may meet both hazardous location requirements and high ambient temperature requirements, with suitable de-rating.
 
Is that a gas pipeline feeding the blast furnace? Or exhaust gases from the blast furnace? Would the area be explosive (i.e. classified)?
Energy gases (COG, BGF and BOFG) are mixed, and the result is called BLG (“blandgas”). This gas will be fed a CHPP.

Regarding ATEX maybe in some areas where are located some valves/instruments in that pipes.

Main goal is to calculate the minimum distance between UHV/EHV cables and that pipe.
 
Are the cables passing through a hazardous area as classified by the applicable code?
The cables may or may not need to be rated for hazardous locations.
Are the cables passing through an area of high ambient temperatures?
The cables may need to be de-rated, or a higher temperature rated cable may be needed.
At lower voltages, Mineral Insulated cables may meet both hazardous location requirements and high ambient temperature requirements, with suitable de-rating.
I believe the pipe with energy gases (COG, BGF and BOFG) could be classified and we are aware to leave a minimum distance to it. Apart of ATEX could be another issue related with EMC. Yes the pipe has high temperatures (I do not know the value).

We are talking UHV/EHV cables = 400 kV and 230 kV
 

Part and Inventory Search

Sponsor