-Electromechanical wave propagation may affcet power system protective device operation. This paper discusses the testbed development to study the electromechanical wave propagation impacts on power system dynamic behavior, and consequently impacts on protective devices including overcurrent, distance, and out-of step relays. To have a better insight, a test bed to simulate electromechanical os...

Circumstances and outcome of roller skating accidents (RSA) and the use of protective gear was surveyed. During 1.1.95-31.12.98 a questionnaire survey was conducted among subjects involved in RSA and combined with data from the A + E dept. A major increase in RSA was reported during this four year study period. A total of 399 injuries were recorded, of which 178 had wrist-related injuries and o...

BACKGROUND Noise-induced hearing loss (NIHL) is one of the most common occupational diseases and the second most common cause of workers' claims for occupational injuries. OBJECTIVE Due to high prevalence of NIHL and several reports of improper use of hearing protective devices (HPDs), we conducted this study to compare the effect of face-to-face training in effective use of earplugs with app...

STUDY OBJECTIVES To determine whether the use of respiratory protective equipment would reduce the incidence of occupational asthma due to exposure to hexahydrophthalic anhydride (HHPA). DESIGN Prospective cohort study. SETTING A facility that makes an epoxy resin product requiring HHPA for its manufacture. PARTICIPANTS Sixty-six individuals newly hired at a facility that makes an epoxy r...