Introduction:

This standard operating procedure enumerates the scope of Fabrication work to be executed in Tower area as specified in the approved drawings and at places when instructed by the Tower-in-charge.

Responsibility: 

The respective Tower-in-charge is responsible to execute the work as per procedure.

Safety & protection:

PPEs like safety belts at height, helmets, safety goggles, ear plugs and hand gloves etc. should be used properly. 

Ensure the working area is kept clean for easy access.

Proper illumination to be provided during the work, if required.

Educate the workmen through pep-talk meeting. 

Hand Railing:
 
Preparatory Work:  

Check the material received at site is as per approved drawing and specifications.
Any member should be made up of full length. Do not accept railing with individual member made up by jointing two or more pieces by welding.

Check the filing of all welded joints is done correctly, welding burr is removed completely.

Check the top level of finish face of upward lump or beam where it is to be fitted. It should be in level with mild slope toward inside of terrace. 

Do correction for level required if any.
Place the railing in position with bushing (The minimum 12mm bush should be used), align it and mark the holes locations on wall and at sill for drilling.
Drill the holes at correct location.


Work Method:

Place the railing in position with bushing of correct size.

Use Pentagon nylon screws 10 x 125 mm to fix the railing on top of upward lump or beam.

For anchoring in wall use nut type Hilti Expansion fastener of 10 x 115 along with Hilti HVU M12 x 110 anchor adhesive capsule.

Check the depth of the hole drilled in wall by inserting fastener in it and mark it on fastener.

Clean the whole completely with blower and insert the Hilti HVU M12 x 110 anchor adhesive capsule in it.

To drive the anchor into hole, apply moderate pressure with rotary hammer drill. Switch off the hammer drill once the depth mark on anchor is reached.
Do check for its alignment after installation.

Do check for any visible damages to railing after completion of work

Team
CBECINDIA