- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (a wnaed Fel)
Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol).
Regulations 4(2) and 6(5)
The daily exposure to vibration (A(8)) of a person is ascertained using the formula:
where:
aw is the vibration magnitude (root-mean-square frequency-weighted acceleration magnitude) in one of the three orthogonal directions, x, y and z, at the supporting surface;
T is the duration of exposure to the vibration magnitude aw;
T0 is the reference duration of 8 hours (28,800 seconds); and
k is a multiplying factor.
To avoid confusion between vibration magnitude and daily exposure to vibration, it is conventional to express daily exposure to vibration in m/s2 A(8).
Daily exposure to vibration (A(8)) is evaluated separately for the x, y and z directions of vibration.
For horizontal vibration (x and y directions), k = 1.4 and aw is obtained using the Wd frequency weighting. For vertical vibration (z direction), k = 1.0 and aw is obtained using the Wk frequency weighting.
Definitions for the frequency weightings are given in International Standard ISO 2631-1:1997.
If the work is such that the total daily exposure consists of two or more operations with different vibration magnitudes, the daily exposure (A(8)) for the combination of operations is ascertained using the formula:
where:
n is the number of individual operations within the working day;
awi is the vibration magnitude for operation i; and
Ti is the duration of operation i.
The exposure to vibration averaged over one week (A(8)week) is the total exposure occurring within a period of seven consecutive days, normalised to a reference duration of five 8-hour days (40 hours). It is ascertained using the formula:
where:
A(8)j is the daily exposure for day j.
The exposure to vibration averaged over one week is for use only for the purposes of Regulation 6(5).
Y Diweddaraf sydd Ar Gael (diwygiedig):Y fersiwn ddiweddaraf sydd ar gael o’r ddeddfwriaeth yn cynnwys newidiadau a wnaed gan ddeddfwriaeth ddilynol ac wedi eu gweithredu gan ein tîm golygyddol. Gellir gweld y newidiadau nad ydym wedi eu gweithredu i’r testun eto yn yr ardal ‘Newidiadau i Ddeddfwriaeth’.
Gwreiddiol (Fel y’i Deddfwyd neu y’i Gwnaed): Mae'r wreiddiol fersiwn y ddeddfwriaeth fel ag yr oedd pan gafodd ei deddfu neu eu gwneud. Ni wnaed unrhyw newidiadau i’r testun.
Mae Memoranda Esboniadol yn nodi datganiad byr o ddiben Offeryn Statudol ac yn rhoi gwybodaeth am ei amcan polisi a goblygiadau polisi. Maent yn ceisio gwneud yr Offeryn Statudol yn hygyrch i ddarllenwyr nad oes ganddynt gymhwyster cyfreithiol, ac maent yn cyd-fynd ag unrhyw Offeryn Statudol neu Offeryn Statudol Drafft a gyflwynwyd ger bron y Senedd o Fehefin 2004 ymlaen.
Gallwch wneud defnydd o ddogfennau atodol hanfodol a gwybodaeth ar gyfer yr eitem ddeddfwriaeth o’r tab hwn. Yn ddibynnol ar yr eitem ddeddfwriaeth sydd i’w gweld, gallai hyn gynnwys:
Defnyddiwch y ddewislen hon i agor dogfennau hanfodol sy’n cyd-fynd â’r ddeddfwriaeth a gwybodaeth am yr eitem hon o ddeddfwriaeth. Gan ddibynnu ar yr eitem o ddeddfwriaeth sy’n cael ei gweld gall hyn gynnwys:
liciwch ‘Gweld Mwy’ neu ddewis ‘Rhagor o Adnoddau’ am wybodaeth ychwanegol gan gynnwys