today’swebcaststartsat1:00p.m.eastern....oct 31, 2013 · electrical power distribution equipment...

Today’s Webcast starts at 1:00 p.m. Eastern. You will not hear audio un=l the Webcast begins

Today's Moderator

Dan Hounsell Editor

Today's Presenter

Frank Waterer

Electrical Engineer and Fellow, Power Systems Engineering Group,

Schneider Electric

Frank received the BSEE degree from the University of Houston in 1980. Before joining Square D in 1988, Frank was a private consultant and a staff engineer with Duke University. He is an Engineering Fellow with Schneider Electric's Power Systems Engineering group and a member of the IEEE Industry ApplicaMons Society and of the IEEE Power and Energy Society. Frank also is the former chairman of IEEE/PES CommiPee 3.0 responsible for all IEEE Standards relaMng to surge-‐protecMve devices and their connecMons and grounding.

Disclosure:

Today’s presenter is currently employed by Schneider Electric, which manufactures the technology referenced in this

presenta=on.

Learning Objec=ves:

•  Understanding the true cost of ignoring maintenance and tesMng

•  Learning about maintenance and tesMng protocols

•  Assessing equipment for program needs

•  Ensuring qualified personnel and understanding when to outsource

•  Reviewing steps to program outage planning

•  Analyzing test results, fixed-‐cost maintenance and tesMng plans.

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link to download a PDF copy of today’s presenta=on slides.

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Maintenance and Testing Best Practices Presented by:

S. Frank Waterer, Electrical Engineer - Fellow Schneider Electric Engineering Services

Topics covered:

•  The cost of ignoring maintenance and testing

•  Recommended steps to an effective electrical preventive maintenance program:

- Assess the exact present state of the electrical power ditribution system - Appropriate and proper maintenance and testing protocols - Planning for outages

•  Considerations for outsourcing - Is in-house staff “qualified”, as defined by NFPA 70E? - Do electrical contractors or service companies have the capability to make corrective recommendations for issues that may arise?

•  Code and regulatory compliance requirements - Multi-year service plans help facilities comply with industry standards. - Determining the best plan for your situation.

Schneider Electric Services 15

The Cost of Ignoring Maintenance and Testing “A well-administered Electrical Preventive Maintenance program:

•  Reduces accidents •  Saves lives •  Identifies impending troubles •  Minimizes costly breakdowns and unplanned outages

Impending troubles can be identified, and solutions applied, before they become major problems requiring more expensive, time-consuming solutions.”

NFPA 70B-2013 Ed., Article 4.2.1


Article 4.2.7 goes on to state:

“An Electrical Preventive Maintenance (EPM) program satisfies an important part of management’s responsibility for keeping costs down and production up.”

Having a preventive maintenance program in place can reduce the risk of unplanned downtime by as much as 66%. Source: IEEE

The Cost of Ignoring Maintenance and Testing


Recommended Steps: Assess the Current State of the Electrical System

●  An up-to-date one-line diagram of the electrical system provides clear and precise information concerning the exact interconnections of all electrical equipment.

●  Due to modifications made to the electrical infrastructure, many facilities do not have current drawings.


●  A licensed professional electrical engineer should be contracted and commissioned to create and maintain current electrical one-line diagrams and equipment name plate data.

●  Prior to initiating a preventive maintenance program, have a short circuit analyses, a time- current coordination study, and an arc flash analysis of all of the power distribution systems to ensure equipment is properly rated, set and labeled.

Recommended Steps: Assess the Current State of the Electrical System


● A comprehensive preventive maintenance and testing program should incorporate detailed policies, procedures, and maintenance activities for the entire electrical power distribution system, regardless of the manufacturer.

● Obtain and maintain all of the operations and maintenance manuals that accompanied the original electrical equipment. -  If not readily available, check online.

Recommended Steps: Maintenance and Testing Protocol


Recommended Steps: Maintenance and Testing Protocol

Any specific maintenance of separate

pieces of electrical equipment does not

guarantee a completely coordinated and

reliable power distribution system as

intended and necessary.


Recommended Steps: Maintenance and Testing Protocol The facility’s management needs to clearly communicate to the service provider:

•  Which equipment is included in the maintenance program

•  The specific order the electrical equipment should be removed from service for maintenance

•  The detailed scope of work for each piece of equipment or component


Recommended Steps: Maintenance and Testing Protocol Recommended items or equipment to Incorporate into a Preventive Maintenance Program:

●  Monitoring equipment ●  Metering equipment ●  Protective relays ●  Service-entrance switchgear ●  Circuit breakers ●  Switchboards ●  Panelboards ●  Motor control centers

●  Transformers ●  Automatic transfer switches ●  UPS Systems ●  Busway ●  Optional Stand-by Generators and… ●  Bonding & Grounding Systems (often overlooked)

Polling Ques=ons Today’s event will include a series of mul=ple-‐choice polling

ques=ons. Please make your selec=on to the right of this screen.


Recommended Steps: Planning for Outages

•  With very FEW exceptions, electrical equipment should NOT be cleaned, inspected, maintained, serviced, or tested while it is energized.

•  When planning for an outage, ‘critical’ equipment should be identified and scheduled, as noted earlier.

•  Arrangements for temporary electrical power should be made, if needed.

•  Above all, it is management’s responsibility for onsite safety, whether for in-house or third-party electrical workers.


Considerations for Outsourcing ●  Facility management needs to insure that electrical workers are

experienced in the specific equipment or system that is to be maintained.

●  Very few companies have in-house staff who have the experience to service all of the electrical equipment within the facility’s electrical power system.

●  Proposed third-party electrical providers should be thoroughly qualified by management. -  An in-depth interview is suggested and applicable references obtained.


Considerations for Outsourcing Personnel performing the maintenance activities need to be qualified as defined by OSHA and NFPA 70E.

Fundamental requirements include:

● Complete understanding of equipment, the required work scope and electrical hazards present.

● Proper use of protective equipment, tools, shielding, and test equipment as well as precautionary techniques.

● Discipline and decision making skills to determine risk and ability to maintain a safe work environment.

Photo Courtesy of Oberon


Code and Regulatory Compliance Requirements

Regularly scheduled electrical preventive

maintenance helps companies meet the

requirements of OSHA, NFPA 70E and

other authorities having jurisdiction.


Code and Regulatory Compliance Requirements Conditions exist that may warrant that preventive maintenance be performed more frequently than widely-published industry standards or the OEM’s recommendations. Examples include:

● Environmental conditions, including humidity, corrosive atmosphere, heat, dirt, or dust ● Equipment runs constantly or with heavy loads • Requirements of local authorities having jurisdiction


Maintaining quality records of maintenance (and repair) activities support regulatory compliance as well as provide trending data.

● Helps identify potential problems to avoid equipment breakdown.

● Enables management to track costs of maintenance activities over time.


Fixed-costs service agreements are a growing trend to manage increasingly complex electrical power distribution systems or systems with multiple brands of equipment.

● In addition to meeting regulatory requirements, these plans offer the flexibility to customize a scope of work and term.

● A fixed-cost service plan avoids fluctuations to the maintenance budget

● Billing can usually be structured to provide a fixed > payment schedule.



Maintenance and Testing: Best Practices

Questions & Answers


References ●  National Fire Protection Association (NFPA) 70B, Recommended Practice for

Electrical Equipment Maintenance.

●  National Fire Protection Association (NFPA) 70, National Electrical Code.

●  National Electrical Manufacturer’s Association (NEMA) Standard AB4, Procedures for Verifying Field Inspections and Performance Verification of Molded-Case Circuit Breakers.

●  National Electrical Testing Association (NETA), Maintenance Testing Specifications for Electrical Power Distribution Equipment and Systems.

●  IEEE Standard 902-1998, IEEE Guide for Maintenance, Operation, and Safety of Industrial and Commercial Power Systems.

●  IEEE Standard 142-2007, IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems.

●  National Electrical Manufacturer’s Association (NEMA) Standard MG1.

today’swebcaststartsat1:00p.m.eastern....oct 31, 2013 · electrical power distribution equipment...

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