There was a power supply incident in some areas in Kowloon and New Territories at around 12.28pm today (March 30). In accordance with the established mechanism, the Electrical and Mechanical Services Department (EMSD) received the notification on the incident from CLP Power Hong Kong Limited (CLP) at around 12.42pm. According to CLP’s notification, there was a voltage dip recorded in CLP’s 400kV overhead line power supply system connecting Yuen Long to Lai Chi Kok. No power interruption was caused by the incident. Since the voltage dip occurred in a high voltage system, short voltage dip was resulted from the incident. Nearby electricity customers may experience dimming or flickering in lighting system; some electrical installations sensitive to voltage changes, such as lifts, may suspend operations due to the activation of protection system. According to CLP’s notification, the voltage dip was preliminarily suspected to be caused by a hill fire at Shap Pat Heung, Yuen Long affecting their overhead line tower.

     Subsequently, the EMSD has immediately followed up with CLP on the development of the incident, and deployed staff to the scene to conduct assessment. The EMSD has requested CLP to identify the cause of the incident and submit a detailed report on the incident within four weeks.

     Moreover, the EMSD has requested the registered lift contractors to report the situation of the affected lifts, as well as to send staff to affected areas to help release the trapped lift passengers and reset the operation of the lifts. The EMSD will continue to maintain close contact with CLP, and urge CLP to conduct appropriate follow-up work.

     ​There was a power supply incident in Tsing Yi at around 9.38am today (January 7). According to the information provided by CLP Power Hong Kong Limited (CLP), a fault occurred in the underground cable at On Mei House, Cheung On Estate, affecting 388 customers. The power supply was fully restored at 11.04am. CLP is arranging the repair of the concerned cable. 

     A stable and safe power supply is crucial to the public and Hong Kong. The Government has requested CLP to immediately launch a comprehensive review of its power supply system and carry out preventive inspections and maintenance arrangements to ensure that the incident will not happen again. The Electrical and Mechanical Services Department (EMSD) will have a meeting with CLP tomorrow (January 8) to follow up in detail and report to the Environment and Ecology Bureau (EEB). The EEB will also review whether there are areas where the Government can strengthen monitoring to improve the performance of the power companies.

     Subsequent to the incident, the EMSD has immediately sent staff to the site to investigate the cause of the incident and whether there was any explosion, followed up with CLP on the development of the incident, and monitored the progress of repair work. The EMSD has also requested CLP to identify the cause of the incident and submit a detailed report on the incident within two weeks. The EMSD will continue to closely follow up with CLP and urge CLP to take appropriate follow up and improvement measures. In view of the recent power incidents, the EMSD will step up inspections of the facilities and operations of CLP to monitor their technical and electrical safety performance.

     According to the Electricity Ordinance (Cap. 406) (the Ordinance), the EMSD monitors the operation of the power companies to ensure a safe and reliable supply of electricity in Hong Kong. The Ordinance stipulates the powers and obligations of electricity suppliers, including, in the case of an electrical accident, providing the Director of Electrical and Mechanical Services a report of the cause and what remedial action has been, or will be done, to prevent a recurrence of the accident. The EMSD has been maintaining close communication with the power companies and conducts regular meetings to discuss the safety of the power supply facilities.

     There was a power supply incident in areas in Tsuen Wan, Kwai Chung and Tsing Yi at around 3.13pm today (January 1). In accordance with the established mechanism, the Electrical and Mechanical Services Department (EMSD) received the report on the incident from CLP Power Hong Kong Limited (CLP) at around 3.31pm. According to CLP’s report, a fault occurred in CLP’s Nga Ying Chau Street Substation, and automatic protection system immediately isolated the faulty part. No electricity shortage was found. However, short voltage dips were resulted from the incident and nearby electricity customers may experience dimming or flicking in lighting system; some electrical installations sensitive to voltage changes, such as elevator, may stop operations due to the activation of protection system. 

     Subsequently, the EMSD has immediately followed up with CLP on the development of the incident, and monitored the progress of repair work. The EMSD has also requested CLP to identify the cause of the incident and submit a detailed report on the incident within four weeks. The EMSD will continue to closely follow up with CLP and urge CLP to take appropriate follow up and improvement measures.
      
     According to the Electricity Ordinance (Cap. 406) (the Ordinance), the EMSD monitors the operation of the power companies to ensure a safe and reliable supply of electricity in Hong Kong. The Ordinance stipulates the powers and obligations of electricity suppliers, including, in the case of an electrical accident, providing the Director of Electrical and Mechanical Services a report of the cause and what remedial action has been, or will be done, to prevent a recurrence of the accident. The EMSD has been maintaining close communication with the power companies and conducts regular meetings to discuss the safety of the power supply facilities.