The manufacture, testing, supply, delivery and off- loading of - - PowerPoint PPT Presentation

ENQUIRY NO. CORP 4924 & 4925 TECHNICAL CLARIFICATION SESSION FOR The manufacture, testing, supply, delivery and off- loading of estimated quantities of (132kV & below) current and voltage transformers. Date: 26 September 2019 Venue: Aries Boardroom MWP

Presented by: Sibongile Maphosa Engineer – Instrument Transformers

Contents

• Commodities & Technical Specifications
• Overall Evaluation Criteria
• Technical Evaluation Criteria
• Desktop Evaluation
• Factory Evaluation
• Documents
• General

Commodities & Specifications

• CT’s – NRS 029 (22 – 765kV) & 240-56062864 (Specific

requirements for voltages up to 132kV)

• VT’s – NRS 030 (6.6 – 132kV) & 240-56062765 (Specific

requirements for voltages up to 132kV)

• Evaluation Criteria - 240-139131823 – Applicable to both CTs and

VTs.

• Over and above the specifications, there are technical schedules

for each commodity class.

• Suppliers are requested to complete part B of the schedules

electronically to avoid hand writing challenges. NB: NRS documents are purchased from SABS

Specifications Intensions

• Acquire

equipment that meets

• perational

requirements and can remain reliable to the expected life.

• Achieve optimized standardization thereby allowing

a wide range of interchangeability.

• Support Eskom’s drive for reducing the carbon

footprint, zero harm to people and to the environment and cost saving initiatives.

• Minimize the total cost of ownership.

Technical Evaluation Criteria

• The criteria (240-139131823) is based on PPPFA framework and Eskom

Procurement and Supply Management Procedure (32-1034).

• It has two main parts i.e. the desktop and factory evaluations. There are

mandatory documents which are required to execute desktop evaluation:

• Completed technical schedule and deviation schedule (in case of deviations)
• Outline drawing of instrument transformer
• Outline drawing of post insulator
• Test reports
• User

manual (packaging, transportation, installation, storage & maintenance)

• NB: Documents must be written in English and units be in SI units

system (dimensions preferably in mm).

Desktop Evaluation

• The evaluation will be based on mandatory documents submitted and

will carry a score of 100 percentage points (see breakdown).

• Important Scoring aspects to note
• Technical Schedule - Non-compliance to primary and / or secondary

terminals carry a 35 points penalty and uncompleted items carry 1 point penalty.

• Test reports will be rationalized to give a score of 50 points
• The minimum threshold required to pass desktop evaluation is 70%.

Document Type Score / Weight Completed Technical Schedule 35 Instrument Transformer Outline drawing 5 Insulator drawing 5 User Manual 5 Test Reports 50

Factory Evaluation

• Factory evaluation is based on two parts namely, factory Assessment

and practical assessment.

• Factory assessment is done using the “Quality and Work practices

assessment checklist” (Annexure B of 240-139131823).

• The checklist has 35 points and compliance to each point gives a

supplier one point and non-compliance is zero point.

• At the end of the exercise the points will be tallied and divided by 35 to

give percentage points.

• The practical assessment is based on routine tests of a sample

instrument transformer and it must pass all tests.

• The minimum threshold required to pass the factory evaluation is a 70%

score for factory assessment and a successful practical assessment.

Documents

• We request suppliers to do the following in order to make the evaluation

process easy:

• Suppliers must please ensure that the electronic documents and hardcopies

are exactly the same. NB: technical team prefers to use electronic copies for evaluation.

• Technical schedules to be completed and saved in PDF format.
• Test report numbers to be written next to tests required in the technical

schedule.

• Supplier must use folders to divide electronic documents see e.g. below.

General

• Suppliers are encouraged to pose questions if they require

clarity.

• All communication and questions based on this tender must

be sent to the Commodity Manager

• We will compile a spreadsheet with questions and answers

as they are posed.

• This will be published / circulated to all suppliers in order to

avoid repeating same questions.

10

Thank you