New safety protocols announced following fatal Wang Fuk Court fire inquiry

Fire safety coordination mechanism launched following public inquiry

TThe Hong Kong Fire Services Department (FSD) will introduce a new system this month to manage building safety complaints following a public inquiry into the fatal Wang Fuk Court blaze.

The South China Morning Post scmp.com/news/hong-kong/society/article/3351019/confusion-over-government-agencies-roles-fire-oversight-tai-po-probe-revealsthat this mechanism aims to eliminate confusion regarding departmental jurisdictions by ensuring cases are referred to the most appropriate government unit.

This action follows an investigation into a 43-hour inferno at the Tai Po residential complex that killed 168 people and displaced nearly 5,000 residents on 26 November last year.

Michael Yung Kam-hung, an assistant director of the Fire Services Department, told an independent committee that his department lacked the construction expertise to handle complaints about flammable building materials.

Yung said: “We do not know how it would affect the project’s progress if we arbitrarily decide that certain materials cannot be used.”

The witness stated that legal action was not taken during the renovation of the estate because the department could not identify which materials were integral to the project.

Regulatory gaps identified during Wang Fuk Court fire investigation

The committee legal team noted that the disaster involved several human factors including the use of polyfoam boards to seal windows and substandard scaffolding mesh.

Lead counsel Victor Dawes SC argued that a serious regulatory vacuum existed because multiple agencies denied responsibility for supervising temporary structures and flammable materials used during renovations.

While fire officials claimed such items fell outside their remit, the Housing Bureau’s Independent Checking Unit (ICU) also stated it was not responsible for the temporary arrangements.

The FSD confirmed that future referrals contested by other departments will be escalated to senior management for cross-departmental coordination to prevent complaints from being ignored.

Yung accepted that the previous lack of clarity was not ideal and confirmed that the department would no longer expect residents to identify which authority should receive their reports.

Regarding the maintenance of fire water tanks at the site, senior station officer Ng Wing-kwong said internal guidelines did not require officers to verify the severity of reported leaks.

He noted that he could not provide an explanation for why officers were not required to double-check defects before allowing the continued shutdown of fire hosepipes.

Fire safety risks of plastic pipes revealed in CuSP study

CuSP research examines fire hazards of plastic pipes

The Copper Sustainability Partnership (CuSP) has conducted a series of tests highlighting fire safety concerns associated with plastic pipes.

According to CuSP, three types of plastic pipes burned completely in under ten minutes, releasing toxic gases including carbon monoxide, carbon dioxide, and nitrogen oxide.

CuSP’s Plastic Under Fire campaign aims to raise awareness of the risks associated with plastic piping materials.

Tests conducted under laboratory conditions simulated real-life fire scenarios, comparing the performance of cross-linked polyethylene (PEX), corrugated stainless-steel tubing (CSST), multi-layer composite pipe (MLCP), and copper.

The results showed that plastic pipes released high levels of harmful gases and smoke, potentially reducing evacuation time during a fire.

Toxic gas emissions from burning plastic pipes

The study found that PEX pipes were the most toxic material when burned, releasing large quantities of carbon monoxide and carbon dioxide.

In the tests, PEX pipes completely burned in under three minutes.

CSST pipes were identified as the fastest-spreading material in a fire, producing 761 times more smoke than copper pipes within the first four minutes of burning.

PEX pipes ranked second in smoke density, producing 507 times more smoke than copper.

High smoke levels can accelerate fire spread and hinder evacuation by reducing visibility.

MLCP emits hydrogen cyanide when burned

MLCP, a material gaining popularity due to its low cost and ease of installation, burned in just over five minutes.

CuSP reported that MLCP released hydrogen cyanide, a highly toxic gas, at a concentration of 1.25 mg/m² within eight minutes of burning.

In contrast, copper pipes produced no hydrogen cyanide.

Hydrogen cyanide exposure can lead to severe neurological effects, respiratory failure, and, in extreme cases, death.

CuSP’s findings indicate that the use of MLCP in buildings could pose a serious health risk in the event of a fire.

Copper pipes found to be the safest option

CuSP stated that copper pipes did not burn under test conditions due to their high melting point of 1,085°C, which exceeds the temperatures typically reached in building fires.

The organisation noted that copper pipes released significantly lower levels of toxic gases and smoke compared to plastic alternatives.

Andrew Surtees, Co-Founder of CuSP, said: “These findings underline the critical importance for manufacturers and installers of considering the fire safety implications of different piping materials.

“Plastic pipes pose a serious risk both to human life and building structures, producing large amounts of smoke and a series of toxic chemicals in a fire.

“For plumbers, the choice of what pipe they are installing should not just be about what is the quickest or cheapest option – but about the long-term implications for people and the environment.”

Fire safety risks of plastic pipes revealed in CuSP study: Summary

CuSP has published findings from a study on the fire safety risks of plastic pipes.

The research found that PEX, CSST, and MLCP pipes burned completely within ten minutes, releasing hazardous gases including carbon monoxide, carbon dioxide, and hydrogen cyanide.

PEX pipes were identified as the most toxic material when burned, while CSST pipes produced 761 times more smoke than copper.

MLCP was found to emit hydrogen cyanide at 1.25 mg/m² within eight minutes of burning.

CuSP stated that copper pipes do not burn due to their high melting point and release significantly lower levels of toxic gases compared to plastic alternatives.

The organisation’s Plastic Under Fire campaign seeks to highlight the risks associated with plastic piping materials in building fires.