断路器噪音测量欧洲标准

October 29, 2012

Giovanni aldrovandi

Sound Tests

噪声试验

The sound pressure level relevant to the three poles circuit breaker has been calculated according to the 2003/10/CE European directive and to the chapter §5.1 of the DIN45635, in order to have the noise level of the circuit breaker in the same condition of service.

The daily exposition noise level and the peak instantaneous sound pressure level at any location 1,0 m from both three poles circuit breakers shall comply with the requirement

为了得到和运行状况相同的断路器声压级，三相断路器的声压级按照2003/10/CE导则和DIN45635第

5.1条进行计算。

在距离三相断路器1米的任何位置，平均噪声水平和瞬间峰值噪声水平应该符合要求。

2. Sound level tests configuration :

2 噪声试验布置

Environment

环境

Internal conditions : test measurements were performed indoor, in the mechanical test laboratory 内部状态：在户内进行测量

Ambient noise (before and after tests) : 73 dB(A)

环境噪声（试验前后）：73dB(A)

Temperature : 28 °C

温度：28 °C

Instruments used

使用的工具

Integrator Sound Level Meter ………..

噪声测试仪

The Sound Level Meter, class 2, is in conformity with the international norm IEC 61672-1 Microphone

……………..

二级噪声测试仪，符合国际标准IEC 61672-1

麦克风

Verification certificate realized the 05/12/05 according to the IEC 60651, IEC 60804 and IEC 1260 standards.

按照IEC 60651, IEC 60804 和 IEC 1260标准，05/12/05发布的认证证书

Validity of the certification :

认证有效期：

Measurements conditions

测量条件

The noise measurements have been taken at 1,0 m from the principal noise source : in front of the operating mechanism of circuit breaker with the door in fully closed position.

Height of the measured point : 1,5 m.

The impulsive noise measurements from the spring operating mechanism have been taken of the peak instantaneous sound pressure level during a circuit breaker open and close operation.

In addition, the average impulse sound level have been also taken during a complete rated no load circuit breaker cycle C-0 with rearmament of mechanism springs.

噪声测量应在离主声源1米处进行：在断路器的操作机构前，机构箱门完全关闭。

测量点高度：1.5m

弹簧操作机构的脉冲噪声峰值暂态噪声水平测量应在断路器分合闸操作中进行。

另外，平均脉冲噪声水平也应通过一次完整的额定空载断路器C-O操作（包括弹簧机构储能）进行。