Basic Required Documents for Preparation of Electrical Heat Tracing Offer

 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.