Basic Required Documents for Preparation of Electrical Heat Tracing Offer
When we received enquiry and will go through the documents &
understand the client requirements.
We checked following
details in enquiry: -
1.
Scope of Supply
2.
Clear Input of Heat Tracing
3.
Specification Related to Our Working
Mandatory Documents
for Clear Input of Heat Tracing:
1.
Line List/Line Number
2.
Maintain Temperature
3.
Operating Temperature
4.
Design Temperature
5.
Minimum Ambient Temperature of Site
6.
Available Power Supply System (3Ph/1Ph, 415V/230V, 4Wire/3Wire/2Wire)
7.
Area Classification Safe/Hazardous
8.
If Hazardous Area
a.
Gas Group (IIA, IIB, IIC & IIB+H2)
b.
Zone Classification (Zone-0/1/2 & Zone-20/21/22)
c.
Temperature Classification. (T6, T5, T4, T3, T2 & T1)
9.
Insulation Thickness
10.
Insulation Material
11.
Thermal Conductivity of Insulation
12.
Safety Factor
13.
Pipe Length/Isometrics/Piping Layout Drawings
14.
P&ID Drawings
15.
Approved Sub Vendor List
If Power & Control
Cable, Tray, Earthing, Cable Gland & Panel in Our Scope.
Documents Required for Calculation Tray,
Cables & Earthing and Construction for Panel
1.
Cable Routing/Overall Plot Plan Drawing With Marking
of Panel Location
2.
Specification of Panel
3.
Specification of Cable
4.
Specification of Tray
5.
Specification of Painting, if applicable.
6.
Specification of Glands
If any document is not provided by customer then we raise query and
asked him about the same.
