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Jiang Chuqin

Hong Kong’s largest electricity provider is investigating a voltage dip in the eastern New Territories that triggered fire alarms and left residents trapped in lifts on Monday morning.
CLP Power confirmed that its 132,000-volt power grid connecting Ma On Shan to Sha Tin experienced a voltage dip for 0.1 seconds at around 7.21am, causing lights to flicker or dim.
Some electrical devices sensitive to voltage changes could also have gone into emergency mode and stopped working, the company said. It added that technicians were in the process of investigating the incident.
The Fire Services Department said it recorded 19 cases of people left trapped in lifts and two cases of fire alarms being triggered between 7.21am and 7.55am.
The department said that areas affected by the voltage dip included Siu Lek Yuen, Tin Sum, Sha Tin, Ma On Shan and Tai Po.
CLP Power supplies electricity to Kowloon, the New Territories and most of Hong Kong’s outlying islands.
In June, authorities demanded CLP Power review all voltage dips and outages over the past three years after a four-hour blackout plunged more than 2,200 households into darkness in the densely populated Wong Tai Sin district.
The Environment and Ecology Bureau at the time expressed “deep concern” over the incident and summoned the company’s boss to request “fundamental improvements” to its culture and electricity supply management system.
In its investigative report for the incident in June, CLP Power blamed external factors for causing faults in two underground cables that led to the outage.
The energy provider issued another apology after a voltage dip in Sham Shui Po in July caused lights to flicker or dim in some homes.
Lawmakers have called such incidents “unacceptable” and urged authorities to include voltage dips as factors in a punishment mechanism that applied to CLP Power and HK Electric, the city’s other top electricity firm.


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Society

CLP Power confirms 132,000-volt power grid connecting Ma On Shan to Sha Tin experienced voltage dip for 0.1 seconds on Monday morning


CLP Power confirms 132,000-volt power grid connecting Ma On Shan to Sha Tin experienced voltage dip for 0.1 seconds on Monday morning.


CLP Group

Energy