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SS 299:2021 Updates – Fire Resistant Test Standard

In our previous Keystone Academy blog, ‘Fire resistant test standards-explained!‘. we introduced the differences among the 3 common LSZH FR test standards. In Singapore, Fire-resistant (FR) cables undergo tests given by the Singapore standard, SS 299.

SS 299:2021 standards specifies the requirements of FR cables relating to characteristics required to maintain circuit integrity and the ability to reduce flame spread, emit low levels of smoke, and emit halogen-free gas during a fire.

This is essential as it ensures that the power supply can be sustained so that life-saving electrical installations, such as fire alarms, smoke detectors, PA systems, and emergency lighting, can perform their functions even in the event of a fire.

According to the updated Singapore FR Test standard (SS 299:2021), passing Protocols C, W, and Z is mandatory for FR cables to be fully compliant. Additionally, including other protocols, namely Protocols A, B, S, X, and Y from previous editions, is considered obsolete. This revised version was published on 23 September 2021.

Fire-resistant tests: SS 299:2021 (from 23 September 2021 onwards)

Fire-resistant tests: SS 299-1:1998 (before 2021)

Resistant to fire alone (Category A, B, C, or S)OPTIONAL: Resistance to fire with water (Category W)
This is meant to simulate fire in the presence of activated sprinkler systems.

OPTIONAL: Resistance to fire with mechanical shock (Category X, Y, or Z)
This is meant to simulate fire in the presence of disturbances such as falling debris.

Check in our sales team to learn more about how we can help you maintain circuit integrity while delivering energy or if you need further guidance on how the new regulation impacts your business.

If you are interested in learning more about the solutions Keystone Cable can provide you, please contact us.

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