electrical
Formed as a primarily an electrical engineering firm, Bradford often works as part of our client’s team to define project scope and develop cost-effective solutions. Our engineers can assist clients through each stage of a project. We develop master plans, provide feasibility studies, identify alternatives for evaluation,
guide final selection, and develop designs from concept through construction management. Bradford also participates on design/build teams to provide professional design assurance to owners.
Several specific areas of expertise are described below as well as a comprehensive list of engineering services is provided at the end of this page.
Comprehensive List
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Feasibility Studies
Evaluating the feasibility of a project is necessary to determine whether a design is suitable for the conditions and can be constructed with the funds available. This evaluation also considers the level of operations and maintenance support the community can offer after the project is complete. Other concerns are cost, longevity, community impacts, predicted future use, and scheduling impacts of a design. Through familiarity with facility and site conditions and from experience garnered on past projects, our engineers are well qualified to prepare thorough studies that consider such relevant details.
Power Distribution Design
The proper code complaint design is important to every facility. Bradford engineers provide high quality designs to comply with the code and meet the energy requirements for your systems. This assures that when your facility comes on line you will not have spent extra for oversized equipment or undersized circuits causing equipment failure. The proper design of your electrical systems also provides faster permit review and easier cost estimating by contractors.
The electrical engineers and designers at Bradford are expert at power distribution. We are experienced at medium voltage distribution (up to 35KV), secondary distribution (600V and below), switchgear, UPS systems, emergency power generation, and more. The needs and the wants from the owner are carefully analyzed, for the best cost effective solution.
Arc Flash Studies
Many of our customers have an awareness of recent developments in workplace safety for the electrical worker. Many insurance providers are asking our customers how they are addressing the requirements of NFPA 70E which OSHA has recently endorsed. While power distribution system analysis has always been a part of good electrical system design, arc flash studies have recently taken priority and required by most authorities having jurisdiction (AHJ). Bradford is qualified to assist in evaluating plant electrical power systems and recommending procedures that meet the requirements of NFPA 70E.
Arc flash hazard analysis includes the calculation of the flash protection boundary limits and the incident energy exposure for the maximum arc producing flash expected from a piece of electrical equipment. The study determines incident energy exposure level and arc-flash protection boundaries for electrical equipment in accordance with IEEE-1584 and NFPA-70E. The study is based on the protective device settings and the interrupting device clearing times. The study makes recommendations for improvements to lower the incident energy levels.
Lighting Design
Working in a poorly lit room can cause harm to your employees and an over lit room wastes your energy dollar in both use and extra cooling load to your systems. Evaluating proper light levels to meet national standards or your own in-house requirements is important to your facility. Bradford performs light load calculations to assure the final design will meet your and the states requirements whether your facility is a nursing home or a production plant
Short Circuit & Coordination Studies
A Short Circuit and Coordination Study is critical for the safe, efficient, and economical operation of any electrical distribution system. Bradford performs these studies utilizing Easy Power 8.0.
A Short Circuit Study will help to ensure that personnel and equipment are protected by establishing proper interrupting ratings. When an electrical fault exceeds the interrupting rating of the protective device, the consequences can be devastating, including injury, damaged electrical equipment, and costly downtime. A Coordination Study maximizes power system selectivity by isolating faults to the nearest protective device, as well as helping to avoid nuisance operations that are due to transformer inrush or motor starting operations