PUBLIC WORKS AND INFRASTRUCTURE DEVELOPMENT
ENERGY AND ELECTRICITY DIVISION
REPORT ON WORK DONE IN PREPARATION –LEADING UP TO & POST THE FWC 2010 HOSTED IN CoT
05 August 2010
INITIATORS: GJ Booysen; PM Tlabela;JF Fourie; P Sivhada;K Leepile;M Rasetlola;B Tumagole
PUBLIC WORKS AND INFRASTRUCTURE DEVELOPMENT: (ENERGY AND ELECTRICITY DIVISION)
REPORT ON THE 2010 SOCCER WORLD CUP
1.PURPOSE
The purpose of this report is to give feedback on the work done by Energy and Electricity Division in preparation for the FWC 2010 hosted by City of Tshwane. The aim is to learn from these experiences to improve on future events.
2.STRATEGIC OBJECTIVE
The strategic objective for all the projects undertaken in preparation was to improve the quality of electricity supply to all areas within the City with specific focus on the immediate areas in and around Loftus stadium as well as the stadiums where practice sessions were held, public viewing areas (PVA’s) and venues where international guests and teams would reside during SWC period.
The strategic objective for the period during the SWC was to prepare the network to such an extend that all available network devices and components would be available to ensure minimum downtime and quickest restoration time in the event of equipment failure resulting in power failure.
The objective aligned with the City Strategic Objective:”To provide quality basic services and infrastructure”
3.BACKGROUND
Several projects to improve the electrical network and monitoring systems were identified during 2007, some of these projects would strengthen the network throughout the city and other projects were specifically for Loftus Versveld to improve the integrity of network feeding the stadium and precinct and surrounding areas.
Projects identified included: CBD network strengthening, Giant stadium improvements, HM Pitje stadium improvements, Mamelodi improvements, Pilditch improvements, Super stadium improvements, Inner city 132kV cable backup, several substation upgrades such as Die Hoewes, Eldoraigne, Highlands Kosmosdal, K Sub Soshanguve, Broederstroom, IFAFI, Florapark, Orchards, Waterkloof, Wildebeest, and Wolmer. Funding requests to upgrade SCADA system used for remote control and monitoring of network was also submitted to Department Minerals and Energy.
Unfortunately funding was only provided for the upgrading and strengthening of Loftus Versveld supply which included the following:
•To improve the stability of the electricity supply to Loftus, immediate surrounding residential area and River Primary substation supply area, River substation required to be de-loaded.
•2MVA connection point for the Broadcasting compound
•The normal supply source for Clydesdale/Loftus was changed to Lynwood Primary Substation. ( 18MVA)
•The original supply cables from River was retained and auto-transfer switchgear was installed in Clydesdale substation making it possible to supply Clydesdale from Lynwood normally with automated switch-over to River in the event of problems from Lynwood supply side.
GEOGRAPHICAL PRESENTATION OF LOFTUS WORK UNDERTAKEN
The Loftus upgrade project resulted in the ability to feed LOFTUS from two independent supply points up to ESKOM 400kV transmission network level reducing the risk of any power failure to an absolute minimum.
Other projects undertaken not necessarily directly influencing the SWC included:
•Transfer of 40MVA load from Kwagga to Buffel in feed station
•Temba main 132/33KV substation fed from Pelly transmission substation upgraded. 2x 20MVA to 3x 40MVA. (Eskom)
•New Kosmosdal 132/11kV substation – 120MVA
•Brakfontein Substation – 40 to 60MVA
•Kentron Substation – 40 to 120MVA
•Wingate substation – 70 to 105MV
•Pumulani substation – 35 to 105MVA
•Olievenhoutbosch substation – 20 to 60MVA
•300MVA Overhead power line Rietvlei in feed to Brakfontein T yard
•Njala 275/132kV In feed station – 500MVA to 750MVA
Maintenance projects undertaken before FWC
The aim was to do as much maintenance possible to limit risks of equipment failure. Maintenance actions included:
•Replace dangerous oil filled switchgear in 2km radius around Loftus with new SF6 gas filled units conforming to latest safety specifications to limit risk of equipment failure in all areas where international guests could possibly be expected.
•Repair and replace streetlights around Loftus as well as along all the critical routes.
•Repair all cable faults on 11kV network before June 2010 to have maximum network availability in the event of any failure.
•Do necessary tree cutting well before critical period, especially in areas where access would be problematic during June and July.
•Do infrared heat scan on internal low voltage network inside Loftus stadium ( several faults were found and repaired)
4.RISKS AND RISK MITIGATION
•Equipment failure
•Critical installations serviced and inspected before June 2010
•All cable faults was repaired before June
•Critical spares available before SWC
•Arrangements in place with ESKOM for possible assistance with equipment and manpower if required.
•Personnel unavailability
•Leave of critical personnel not allowed between 1st June to 15th July 2010
•Dedicated stand-by teams specifically for critical sites on days of Loftus games as well as events at FAN FEST and PVA’s
•Double stand-by teams during 1st June to 15th July
•Power failures during events
•Operational (switching) Personnel placed at ESKOM supply points and other critical substation to be immediately available to take action in the event of power failures to limit outage time periods.
• Maintenance and repair teams on stand-by at critical sites during games to enable rapid response to repair work where required 4 hours before up to 4 hours after events.
5.COSTS INCURRED
To ensure availability of personnel during the world cup period additional personnel were placed on stand by dedicated to the events. The additional costs for overtime and stand by could be summarised as follows:
Average daily cost for four PVA sites= R48 000 per day
Fan Festival Centurion specific site stand by= R 10 000 per day
Loftus Game Plus Fan Festival = R 112 000 per day
Average cost for Loftus plus 4 PVA’s plus Fan Fest = R150 000 per day
Costs for projects undertaken with direct influence on supply stability:
11kV Network:
Main feeder cables Lynnwood – ClydesdaleR7 500 000
Switchgear inside Clydesdale substationR9 000 000
LT Network:
Outdoor switchgear ( oil filled) Replace all switchgear within 2 km radius around Loftus Versveld R1 850 000
Replace Low voltage overhead lines with underground cables in
Kirkness street R 615 000
Replace Low voltage overhead lines Super StadiumR557 000
6.LESSONS LEARNT AND HIGHLIGHTS FOR REPORTING
•Establishment of City Joint Operation Centre (JOC) occurred at very late stage and should preferably in future meet much earlier before the critical time period.
•Very few incidents involving Electricity specifically was reported
•Several streetlights not working
•Power failure at complex opposite training venue had power failure due to own internal Circuit breaker fault.
•Reduction in number of conductor theft incidents during June July
6.CONCLUSION
The 2010 world cup events was successfully hosted and no major network incidents took place during the period 01 June to 15 July while personnel were on operational readiness with specific preparations and special teams dedicated for rapid response to any incident relating to power supply to all venues as well as other critical sites such as hotels and venues hosting teams.
Operational personnel were placed at sites 4 hours before the events started and remained on site up to four hours afterwards depending on rate of evacuation at site. The City JOC meetings were attended as scheduled daily throughout the period as well as after local matches at Loftus. Energy and Electricity were also represented at the provincial JOC by several personnel member for the duration of events.
Complaints received from JOC were limited to streetlights not functioning.
The planning and preparations resulted in a successful event.
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