MarTek is unable to answer this question as it requires a detailed arc flash study of your electrical system. In most cases, 30-feet will be outside the arc-flash boundary. However, it is the customer’s responsibility to make the final determination using results from your arc flash study. In cases where the arc flash study has shown a distance greater than 30-feet, we are able to provide a 50-foot cable as an option. For applications requiring greater than 50-feet, call us for assistance.