World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom

Products

Keep up-to-date with the latest new products and technology

Features

General articles, applications and industry analysis

Firm fined for fatal hydrocarbon blast

SCDFSINGAPORE: An m&e firm has been fined SGD150,000 after hydrocarbon refrigerant from an air conditioning unit exploded, killing one worker and injuring two others. 

The incident occurred in August 2012 when workers from Sing Wah Enterprise were called to electronics company Toshiba Tec Singapore to remove a hydrocarbon refrigerant from an air conditioning at its factory.

The call was in response to a Singapore Civil Defence Force (SCDF) circular announcing its intention to ban the use of hydrocarbons in existing air cooling units. Hydrocarbon refrigerant and technology suppliers in Singapore were first informed of the ban in 2010 when the SCDF said it had “decided not to continue to allow the use of HC as refrigerant in air conditioning systems owing to the hazards it imposes on the safety of occupants in buildings.

At the inquest in 2013, it was revealed that the workers carried out chemical flushing of the air conditioning coil and released the hydrocarbon refrigerant gas by using a hose connected to the compressor. One of the workers was tasked to remove waste water on the floor, but as soon as he switched on the vacuum cleaner, there was an explosion which caused a flash fire.

The coroner said that the refrigerant conversion process had caused the accumulation of hydrocarbon gas in the room and that a spark from the vacuum cleaner ignited the gas and this caused the explosion and fire.

All three workers were taken to hospital with burns. Bangladeshi worker Abadul Jaynal Sikder died in hospital four days later.

The coroner concluded that the workers probably didn’t understand the dangers posed by the gas in the air conditioner they were working on. Because of that, a spark from a vacuum cleaner turned what seemed like a straightforward task into a deadly one.

Safety failures

According to a report on the website of the Singapore newspaper Today, a district court has ordered Sing Wah Enterprise to pay a fine of SGD150,000 (€100,000) for failing to ensure the safety of the three workers.

Investigations were said to have shown that Sing Wah had not provided a risk assessment or safe work procedures for the gas conversion works assigned to the workers.

The workers also did not have a copy of the safety data sheet on the gas. Also the equipment used, such as the vacuum cleaner, was not explosion proof.

The court was urged to impose a lenient fine, as Sing Wah had not shied away from its responsibility, and had compensated the workers SGD350,000 (€230,000) in medical bills and repatriation fees.

Phase out

Hydrocarbon refrigerants are being phased out in building air conditioning systems in Singapore by the end of 2016. They are also being banned in mobile air conditioning and commercial refrigeration systems such as coldrooms in supermarkets, food storage factories and industrial process refrigeration systems. Strict controls and safety measures have also been placed on their use in domestic refrigeration and small residential air conditioners.

Related stories:

https://www.coolingpost.com/world-news/singapore-issues-hc-refrigerant-warning/

https://www.coolingpost.com/world-news/poor-install-makes-ac-biggest-fire-risk/

 

 

Latest News

28th March 2024

Hudson warns of unsafe US recovery cylinders

USA: The US refrigerant supplier and reclaimer Hudson Technologies has warned of illegal and unsafe recovery cylinders entering the US market.
28th March 2024

Topical talks at Bath breakfast meeting

UK: The next South West South Wales Refrigeration Society breakfast briefing will feature talks from three experienced and knowledgable speakers on varied refrigeration and air conditioning topics.
28th March 2024

CO2 compressor for multiple applications

ITALY: Frascold’s new TK HD series transcritical CO2 compressors are designed for a wide range of refrigeration and air conditioning applications, as well as high-temperature heat pumps up to 100°C.
28th March 2024

Copeland releases 50hp scroll in Asia

CHINA: US compressor manufacturer Copeland is to launch a 50hp scroll for heat pump OEMs in Asia.
27th March 2024

Daikin redesigns Perfera R32 air conditioner

BELGIUM: Daikin Europe has announced a next generation All Seasons Perfera R32 air conditioner with redesigned indoor and outdoor units, making them easy to install and use.
27th March 2024

Press fittings go large

UK: Conex Bänninger has expanded its >B< MaxiPro range of press fittings with the addition of a 1⅝in fitting.