Recalls are a major contributor to product liability incidents and lawsuits, interactions with government safety agencies, disputes with suppliers and product sellers, and negative publicity with the buying public. New guides have recently been issued that can help a manufacturer and product seller to better understand how to prepare for and implement an effective recall.
While the selection of components in electrical equipment plays a crucial role, a sound understanding of the characteristics of safety-critical and high-integrity components can provide valuable information about the ways to advance and achieve the safety goals.
This is the second of a two-part series that discusses a numerical methodology that relies on the concept of cumulative equivalent exposure to evaluate contact burn injury thresholds.
The safety hierarchy is a flexible concept that can be helpful in deciding on a final product design. But it can also be a trap for the unwary design engineer. This article will discuss the safety hierarchy concept, how do you comply with its requirements, and what are the problems associated with it?
Modern lithium batteries require a comprehensive approach to risk assessment and mitigation during product development, and a swift and systematic response when safety concerns arise in the field.
The formation of branching patterns is commonly associated with electrical discharges. Lightning and electrostatic discharges from a Van de Graaff generator are transient luminous branching patterns, and sometimes the passing of an electrical current leaves residual physical patterns. Examples of how such patterns are formed are presented.
This article will discuss the basic kinds of defects that can be alleged in any product liability case, the law as it pertains to compliance with standards, and some tips on how to deal with the issue of standards compliance.
This article identifies the burn injury threshold conditions associated with finite thermal mass objects and presents a model for predicting the degree of burn injury.
The elements of a program to deal with pre-sale and post-sale safety issues are well-known. But the specifics of what elements should be used and how by a particular manufacturer are often unknown. Therefore, the most important question that must be answered by any company manufacturing finished products or component parts is “What should my company do and how should I do it?”
Generalized Formula for the Calculation of a Probabilistic Metric for Random Hardware Failures in Redundant Systems
ISO 26262 defines the probabilistic metric for random hardware failures (PMHF) as the average probability of a violation of a safety goal associated with a failure over a vehicle’s lifetime and architecture metrics. In this article, we propose a method to calculate the PMHF and expand the application to redundant subsystems that are not adequately described in the standard.