EQAG COMMUNICATION SECTION

MONTH & YEAR – April 2007

1. COMMUNICATION AVAILABILITY: -

Communication System Indices / April 07 (%) / April 06 (%) / Achieved for FY 2008 / Target for the FY 2008
Protection Channels / 100 / 100 / 100 / 99.9
Data channels / 100 / 100 / 100 / 98.0
Voice system / 99.73 / 99.18 / 99.73 / 99.0

% availability =

2. MAJOR INVESTIGATION & OCCURRENCES: -
Date / Division / Station / OCCURRENCES / INVESTIGATION
8 April 07 / Trombay / Carnac Trombay 220 Kv line standby OPGW Fiber was damaged due to heavy fault current at T13 (in Mahul creek) . The same was spliced & applications have been restored.
Jobs that had taken more time than the standard time
Date / Division/ Station / System / Channels affected / Down Time
20 April 07 / Trombay / Telephone Exchange connectivity For Vikhroli is intermittently failing. This is due to insufficient Bandwidth available for Vikhroli WAN. The BW will be upgraded by installing new High speed MUX. Between Dharavi &Vikhroli. / 240 hrs
  1. BREAKDOWN MAINTENANCE ACTIVITIES : -

Date / Division / Description / Resolution time
12 April 07 / Dharavi / SCADA connectivity from various nodes ( Borivli , Salsette , Parel ) were not available at CCR Dharavi.Carnac L3 switch was misbehaving which caused flooding of the entire network. After resetting Carnac switch system got normalized. / 8 hrs
7 April 07 / Trombay / WAN connectivity between Coal yard & Trombay LD was intermittently failing.MM patch cord were replaced with SM patch cords as Cable is on SM fibre. / 24 hrs
  1. COMMISSIONING / PROJECT ACTIVITIES : -

Date / Division / Description
15, 21 April 2007 / Trombay / Diversion of OPGW cable at Trombay (near Agesis Chemicals). Trombay-Parel & Trombay-DharaviTower line has been diverted on new tower. The OPGW cables were re-routed & spliced after diversion of Tower line.
  1. RETROFITTING JOBS: - NIL

Date / Division / Description
Nil
  1. PREVENTIVE MAINTAINANCE ACTIVITIES. NIL

Date / Station / Link / Description
Nil
  1. Preventive Maintenance Completion Percentage (April 2007 – March 2008.)

System / April 06-March 07 / Till Last Month / Till end of this month
Fibre Optic / 3.23 % / 0 % / 0 %
Microwave / 80 % / 0 % / 0 %
PLCC / 0 % / 0 % / 0 %
Total / 14.8 % / 0 % / 0 %

Condition based maintenance for FOP, MW, PLCC initiated from October 2006.

8. ADMINISTRATION AND MAN POWER DEVELOPMENT.

Date / Name / Description

9. COST OF REWORK FOR POOR QUALITY OF RECEIVED MATERIAL EQUIPMENT