Electrical & Instrumentation QA / QC

Ans:   Material check as per approved spec, size and type, tray’s hook-up, proper distance structure, tray to tray i.e. power/control/and signal/low voltage and high voltage, support and fixed strongly not shaking.

Ans:   Materials inspection as per approved spec material, type and size, Installation as per Hook-up, check line route to avoid any obstruction, check tube bending, and check tube support, compression fitting or ferrules, and then pressure test (hydrostatic test) shall be done.

Ans:   Material inspection as per approved materials, types and size, meggering, cable routing  drawing, completion of cable route ( tray, conduit or trench etc ) and cable numbering (Tag), cable bending, use or proper tools and equipment for cable pulling.

Ans:   Material Inspection, type, size as per approved specification, installation hook up for frame, bracket or stands, fixed properly means shaking free, Name Plate, and tag no.

Ans:   For to side only terminal’s address required which shall be close to terminal either side and complete information shall be of from side after or before as per left and right side.

Ans:   When the QA/QC department of contractor is satisfied that the work detailed in the construction RFI is completed, then request shall be submitted for inspection to the client QA/AC department.

Ans:   Schedule Q is an attachment to the contract, which is the provision of Quality Assurance and Control, Inspection and test plan.

Ans: They are as following.

A: Level 0 – Documents requirements only, no Inspection.

B: Level 1 – Inspection prior to shipping.

C: Level 2 – Minimum requirements, pre-inspection meetings, one  or more unspecified “in progress” surveillance visits.

D: Level 3 – Same as level 2, except that “in progress” surveillance inspection shall be in regular basis.

E: Level 4 – Resident Inspection Continuously monitor the work.

A: Hold Point (H): The inspection activities will not proceed without the presence of inspection.

B: Witness Point (W): Inspection activities can be proceeding after issuing RFI.

C: Review (R): Verification of documentation (NMR) on its correctness as per spec and approved drawings.

D: Surveillance (S): Inspection has right to conduct random inspection of works.

E: Inspection (I) / Perform (P) / Test (T): construction can be proceeding to next phase without client inspection.

Ans: ITP mean Inspection and Test Plan, details of work scope and required types of inspections.

Hold Point (H): is the level of inspection that client inspection must require through RFI and can’t be preceded until inspection is done by client.

Witness Point (W): is the level of inspection that inspection activity can be preceded without client inspection or if client is not available as per RFI Timing.

Ans:   Request for inspection (RFI), RFI shall be raised only when the status of the preliminary inspection is satisfactory, and the works (items) are Hold or Witness Point.

Ans:   Cable tray is the device used to provide support and protection to the laid cable in side the building or outside pipe rack.

Ans:   Checking / testing the equipment for its accuracy and serviceability are known as calibration.
Process calibration means carrying out calibration activity by following the adopted authorized method linked with standardization.

Ans:   Loop is the electro-mechanical presentation of the circuit concerning to flow of liquid or gas, alarm system, control valve operation and other specific for which field installation instrument involvement is considered. There are certain condition and requirements to be fulfilled to complete the loop check.
The list of attachments including drawing, check list and punch list and other listed documents are arrange in folder (loop wise) for having an easy access to carry out the loop check and final hand over of the project. That folder with all possible documents is known as loop folder.

Ans:   a. Loop check is a clear blue print of a successful system functioning (activity wise).

b. This emphasis the serviceability of each instrument installed either in field or inside the building,

c. This exposes also the limitation of some systems functioning as per the attached filled punch list,

d. One of the ready documents for final hand over of a project on completion,

e. It is always two team’s operation-one will be on field and the other will be in the control room, After every successful completion of loop check it is marked with Red Colored Label bearing the date
of the loop check and the witnessing parties initial.

Ans:   The standard means the authenticated documented instruction to be followed during execution
of any specific project for which it is made.

Standardization means the method of execution of certain standard, which is specific to the one
or more related activities in a project execution process.

Ans:   QA/QCmeans, “Quality Assurance / Quality Control” The purpose of this (QA/QC) is to
establish the sequence of requirement for the quality of material, quality of
works, its inspection, and records

Ans: ISO 9001 ~ 2000

Ans:   Quality Control “Those activities and techniques used to achieve and maintain the quality of product, process or service”.

Ans:   Quality Plan “Document Specification which procedures and associated resources shall be applied by whom and when to specific project, product, process or contract”.

Ans:   Non-conformity“Non-fulfillment of requirement”. (Complete failure of a system, or controls, which result in completely unsatisfactory goods or services being provided).

Ans: Governing Document Acceptance Criteria.

Ans: Everybody within all organization.

Ans: To ensure execution of works and comply fully as per standard and approved specs.

Ans:   The basic required documents for a QA/QC personal are as following.

ITP (Inspection Test Plan): To conduct the quality check (Inspection of Witness, Surveillance and Hold Point) etc.

RFI: To conduct the inspection of completed work.

QR (Quality Record): To maintain the quality records of completed works etc.

NCR: To issue warning in case of serious violation of standard.

WP (Work Procedure): Standard procedure to execute the works.

P & ID: As a reference to ensure that the work is as per standard drawing.

MTC: To ensure that material comply the PES standard specs.

Calibration Report: To ensure parameters are function checked as per IDS.

PP (Project Plan): To ensure that the instruments are installation as per P & ID and PP as per convenience.

Hook-up: To ensure that the remote connection of pneumatic is done correctly.

Wiring Diagrams: To ensure that wiring is done correctly ILD: To ensure that the sequential wiring is done correctly.

IDS/ISS: To ensure that the instruments comply with the basic requirement.

QCO: To issue a warning in case of little violation and observation.

DR: Discrepancy Report.

Ans:   ITP: This procedure informs about the kinds of quality check (surveillance, inspection, witness or hold pints) means quality of works is being done in proper sequences.

QCP: This procedure addresses the activities and requirement in details.

Ans:   NCR means Non-Compliance Report, QA/QC personal has reserve the right to issue a warning if the contractor doesn’t comply or violate with the standard procedure.

Ans:   The general sequence of activities will be as follows:

Receiving Drawing and Documents.

Reproduction of Drawings.

Issuing of drawing to site.

New-Issuing new Revision.

Shredding drawings.

Transmittal of redlines to Client (As-built).

Restricted access to the DCO.

Work Permit prior to starts the works.

Records.

Ans:   In case of any change occur to the standard approved drawing while the project is being constructed or tested the relevant drawing will be “redlined”. Following color coding shall be used for this purpose.

Red: If any addition required from the drawing.

Green: If any Deletion is required from the drawing.

Blue: If any comments is added.

Ans:   Inspection: Work can be execute without client’s inspection and it can be inspected some part of them
if it is required.

Witness: Work can be executed, without client inspection and then it can be inspected upon the completion of work.

Hold Point: Work can’t be executed without client inspection.

Ans:   Hazardous: A hazardous location is defined as an area where a potential for fire or explosion exists
due to the presence of flammable gases, liquids or vapors, combustible dusts or fibers and flying in sufficient quantities to produce an explosion or ignitable mixture.

Non-hazardous: An area where non risk of presence of any kinds exposition.