Belte r r a Cor p or at ion S afety M an ual D oc I D C H S M BE L 2 0 1 7 Pa g e 1 98 of 53 8 48 2 11 19 28 36 44 53 62 70 78 87 96 56 3 12 20 29 37 46 55 63 72 81 89 98 64 3 12 21 29 38 47 56 63 73 82 91 100 W ind sp e e d ove r 65 KPH ha ve li tt le a ddit ional e ff e c t L it tl e Da n ge r 1 hour to fr e e z e fle sh a t lowe st t e mper a tur e I n c re a se d D a n g e r 1 mi nute to f re e z e fle sh Gr e a t D a n g e r 30 se c onds t o fr e e z e fle s h W he n we a ther info rma ti on is not ava il a ble the fo ll owing sig ns m a y h e lp t o e sti mate wind spe e ds i n the f ield s ee ch ar t W ind sp e e d Ef fe c t 8 KM H 5 M H L i g ht fla g just moves 16 10 L i g ht fla g is full y e x tende d 24 15 R a ises ne wspa pe r she e t o ff the g round 32 20 W ind ca pa ble of blowin g snow W orking in cold e nviron ments Due to t he risk of F rostbit e a nd H y pother mi a wo r ke rs should e nsure th a t t he y a re m e dica ll y fit a nd a de qua tel y dre ssed to st a y dr y in col d we t and w ind y c ondit i ons An y wo rke r noticin g un c ontroll a ble or se ve re shi v e ring in a c o wor ke r must m ove the w ork e r to a w a rm a r e a a nd se e k im media te me di c a l attention At wind c hil led te mper a ture s be low z e ro Ce lsi us wor ke rs must wor k in pai rs a nd maintain wor k r e st c y c les Doc u m e n t Identif icat ion S E L 024 P age Nu m b e r 3 of 5 Doc u m e n t C r e ation Dat e J a nua r y 1 2013 Im p le m e n tat ion Dat e J a nua r y 1 2013 C old Envi ronme nt W ork R e st C y c les w il l be ba s e d on a 4 hour ti mef ra m e with 10 t o 15 mi nute r e st bre a ks spa c e d no mor e than 2 h ours a pa rt a n d with a 30 mi nute me a l bre a ks i n be twe e n c y c l e s All bre a ks a re to be in a wa rm a nd d r y a r e a s ee ch ar t Thr e sho ld L im it Va lu e s f or C old Envi ronme nt W o rk Rest C y c les ACG I H Ambient Te mper a tur e No W ind 8 km h W ind 16 km h W ind 24 km h W ind 32 km h W ind Min C Ma x C Ma x W ork P e riod of B re a ks Ma x W ork P e riod of B re a ks Ma x W ork P e riod of B re a ks Ma x W ork P e riod of B re a ks Ma x W ork P e riod of B re a ks 26 28 Nor mal Bre a k Nor mal Bre a k 75 mi n 2 55 mi n 3 40 mi n 4 29 31 Nor mal Bre a k 75 mi n 2 55 mi n 3 40 mi n 4 30 mi n 5