DEFINITION OF ACTIVITY SEQUENCE IN MEP WORK

Hi Vinay

I have moved this thread to this forum.

You will get a better response from here.

Best regards

Mike Testro

http://www.planningplanet.com/forum/forum_post.asp?fid=1&Cat=1&Top=50658

Dear Vinay,

The best idea would be to agree with your team members on the definition of each. This is not a big issue.

Make a list of all the systems that you have. Depending on your project, you might have from 2-16 systems. For each system define what is the meaning:

1st fix: install conduits in concrete or empty conduits anywhere.

2nd fix: pulling wires for electrical systems and installing valves flush with finish surface for mechanical systems.

3rd fix: install sockets, and cover plates, and lighting fixutres for electrical systems, and installing the fixtures or machines for the mechanical system.

Commissioning is a stand alone process since you will need the whole system operating at many zones.

Hope that the information assisted you. I did inquire from a Mechanical Consultant about the definition in the code, but I had a negative reply.

With kind regards,

Samer

Dear Sirs,

This is very interesting topic. u know when i started my carrier before 1 year my seniors explained one type of definitions for each fixes. Now the scenario had been changed into some other.

For Example They explained me that 1 st fix means Inside slab works or u can say in-cast services(conduiting,pipe openings,sleeves,duct openings)and also support fixings, trays & trunking works....

2nd fix defined for Duct instln,CHW Piping works,cable laying,water& drainage piping works,FF piping works, MEP Equipments instlns like (chillers,AHUs,FAHUs,FCUs,cooling towers,fans,MDBs,SMDBs,DBs,Panel Boards,DG Set,Transformers,Switch gears,Heat Exchangers,Water Tanks,Droppers,water heaters,Pumps,etc....)

Final fix includes Installation of Grills & Diffusers,Light fittings,Smoke detectors, Sprinklers, Taps, Sanitary ware fittings etc......(which is visible to the visitor mostly)

But these definition are being modified or considered based on the project team of client/consultant,MEP COnsultant,civil contractor,MEP contractor... Somebody will consider In-cast services only as 1st fix works.

Then all support fixings and sleeves as 2nd fix with above mentioned 2nd fix definitions.

So can you pls tell me,,, is there any proper definitions to identify these Terminologies in the proper manner.

Many Thanks in advance.....

Regards,

S.Shaji Mohamed

We are using:

HVAC SYSTEM

1st Fix - Ducting and Insulation, All Piping Works (Drainage, Water Supply, Chilled Water, etc

2nd Fix - FCU and Connections & All Testing

Final Fix - Grilles, Diffusers, Water Heaters & Sprinklers


ELECTRICAL SYSTEM

1st Fix - Conduiting & Enclosures

2nd Fix - All Wirings, Treys & Trunking, DB’s

Final Fix - Smoke Detectors, Light Fittings & Switches

While I was engaged in 2 different projects the fixes were different for each .

It is really a controversial issue.

Dear Balu,

As long as the team members know exactly what is mean by the description of each activity, you will be ok.

With kind regards,

Samer

Dear Samer

Thats true.But what I meant is that there is a lack of standardisation in the MEP sequencing as such it seems.

Regards
Balu