The necessity of installing the residual current fire alarm system was analyzed.

分析了设置剩余电流火灾报警系统的必要性。

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The particle track technology is applied to establish the three-dimensional Lagrangian residual current model.

利用标识质点跟踪技术，建立了三维拉格朗日余流模型。

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The IDB 2 type residual current operated protection tester was introduced.

介绍了IDB 2型剩余电流动作保护测试仪。

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Its research also suggests many UK adults do not have adequate protection from electrical fires - less than half of those surveyed (49%) have a Residual Current Device in their fuse box, a safety device which minimises the risk of fire by cutting off the power in the event of a fault.

BBC: 'Blunder' fires increasing say Electrical Safety Council