Clarke CP254 운영 및 유지보수 지침 매뉴얼 - 페이지 10

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Clarke CP254에 대해서도 마찬가지입니다: 운영 및 유지 관리 지침 (13 페이지)

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factor, i.e. a value in excess of 'a', to which the tool could vibrate under

normal conditions. These values appear in the specification panel below.

Model Number

Description

Declared vibration emission value in accordance with EN12096

Measured vibration emission value - a:

Value determined according to

You will note that a third value is given in the specification - the highest

measured reading in a single plane. This is the maximum level of vibration

measured during testing in one of the axes, and this should also be taken into

account when making a risk assessment.

'a' values in excess of 2.5 m/s

prolonged periods. A tool with a vibration value of 2.8 m/s

up to 8 hours (cumulative) per day, whereas a tool with a value of 11.2 m/s

may be used for ½ hour per day only.

The graph on the right shows the

vibration value against the maximum

time the respective tool may be

used, per day.

The uncertainty factor should also be

taken into account when assessing a

risk. The two figures 'a' and 'K' may

be added together and the resultant

value used to assess the risk.

It should be noted that if a tool is

used under abnormal, or unusual

conditions, then the vibration level

could possibly increase significantly. Users must always take this into account

and make their own risk assessment, using the graph above as a reference.

Some tools with a high vibration value, such as impact wrenches, are

generally used for a few seconds at a time, therefore the cumulative time

may only be in the order of a few minutes per day. Nevertheless, the

cumulative effect, particularly when added to that of other hand held power

tools that may be used, must always be taken into account when the total

daily dose rate is determined.

Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]

CP254

Polisher

are considered hazardous when used for

7.59 m/s

EN28622-1

may be used for