Generator Docking Stations and National Electrical Code

Jonathan Sunde

• International Association Electrical Inspector Certified:Master Electrical Inspector CEI-M-220

• Minnesota Master Electrician AM06188• Florida Master Electrician 11133• Wisconsin Master Electrician 1040599• Texas Master Electrician 313865• Iowa Master Electrician EL-0009083-MA• Louisiana Master Electrician 60500• Continuing Education Instructor Licensure I1640396

Jonathan Sunde

Best dad joke teller ever!!

NEC 2017

IEEE

NFPA 99 Health Care Facilities Code

NFPA 101 Standard for Emergency and Standby Power Systems

NFPA 110 Standard for Emergency and Standby Power Systems

Article 517 Health Care Facilities

Essential Electrical Systems:

The essential electrical system for these facilities shall comprise a system capable of supplying a limited amount of lighting and power service, which is considered essential for life safety and orderly cessation of procedures during the time normal electrical service is interrupted for any reason. This include clinics, medical and dental offices, outpatient facilities, nursing homes, limited care facilities, hospitals, and other health care facilities serving patients.

Article 517.26

This section sends us to Article 700 (Emergency Systems)Except as amended by Article 517

You will need two Independent Power Sources, a normal, and one or more alternate source.

Where to install the Generator?Location Location LocationThey need to be installed to minimize interruption caused by natural forces common to the area (e.g., storms, floods, earthquakes, etc.)Also should be installed where they can be tested and maintained.

Article 700

This article will cover Emergency Systems legally required and classed as emergency systems by municipality, state, federal, or other government agencies having jurisdiction.These types of systems are generally installed in:• Places of Assembly• Hotels• Theaters

• Health Care Facilities

Generator Categories

Portable Generators

Generator – Where are you going to get the generator1. Rent it – Need a contract to guarantee it’s

there when needed2. Own it – Need a place to store and

maintain in

Plan on how to hook it up and unhook it Where to place it Who is delivering the generator and size needed How to fill it with fuel

Permanent Generators

• Need room for Generator and fuel source

• Need to maintain the generator

• Generator will need to be tested under a load

700.3Testing and Maintaining a Generator

• 1st the AHJ shall conduct or witness a test of the complete system upon installation

• 2nd needs to be tested periodically on a schedule acceptable to the AHJ

• 3rd Need to be maintained in accordance with manufactures instructions and industry standards.

• 4th Written records need to be kept of such tests and maintenance.

700.3(E) Testing under Load

• Means for testing all emergency lighting and power systems during maximum anticipated load conditions shall be provided.

• This can be as simple as running the generator under the full load it will carry .

• Or you can load bank test it.

How To Hook Up Your Load Bank

2017 NEC Big Addition

• 700.3(F) Temporary source of power for maintenance or repair of the alternate source of power.

If the emergency system relies on a single alternate source of power, which will be disabled for maintenance or repairs, the emergency system shall include permanent switching means to connect a portable or temporary alternate source of power, which shall be available for the duration of the maintenance or repair. The permanent switching means to connect a portable or temporary alternate sourse of power shall comply with the following slides:

1. Connection to the portable or temporary alternate source of power shall not require modification of the permanent system wiring.

2.Transfer of power between the normal and temporary source needs to be in accordance with 700.12

• 1. Automatic start

• 2. Power available within 10 seconds

• 3. Have automatic transfer to emergency load

• 4. have enough fuel.

(3) The connection point for the portable or temporary alternate source shall be marked with the phase rotation and system bonding requirements.

• Separately Derived System

Not a Separately Derived System

Not a separately derived system

• Fault will return to the generator on the grounded conductor.

702.7(C) says we need a warning label near the inlet displaying what type of system it is.

TRYSTAR

In Field Modification of Bond

4. Mechanical or electrical interlocking shall prevent inadvertent interconnection of power.

Trapped Key Interlock System

Rotary switch will also work

Kirk key in use, the other lock is on the permanent generator.

5. The switching means shall include a contact

point that shall annunciate at a location

remote from the generator or at another

facility monitoring system to indicate that the

permanent emergency source is disconnected

from the emergency system.

Other Items need in your emergency system• 1. Surge Protection need to be installed

in all emergency switchboard and panel board

• 2. The short circuit current ratings need to be documented

• 3. selective coordination of your overcurrent devices

• 4. Make sure it listed

Article 701Legally Required Standby Systems

Much like Article 700. The 701 article covers loads that would include:

1. Ventilation

2. Sewage disposal

3. Lighting systems

4. Industrial control processes that when stopped during interruption of normal electric could create hazards.

Article 702Optional Standby Systems

Article 702 deals with optional standby systems (All other types where the power is to protect property, not life. Examples – Heating Systems, Data Centers, Farms, Gas Stations, etc)

Rules to be followed: Can be manually or automatically

hooked up (no time limit) Can be portable or permanent

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20 x 4000A Dual Purpose Docking Stations Per Build Out10 x 1200A Rotary Chiller Docking Station Per Build Out6 Week Lead Time from PO Release to Delivery

Another BIG code changeArticle 702.12(C)

• Power Inlets Rated at 100 amperes or Greater, for Portable Generators

Equipment containing power inlets for the connection of a generator source shall be listed for the intended use. Systems with power inlets shall be equipped with an interlocked disconnecting means.

CamlockSingle Pin Connector

What can Trystar Do You

The Trystar Standard38

DOCKING STATION APPLICATIONS

Dedicated connection point for a temporary generator to be safely, legally, and quickly connected to a building load. Preventing the need for an electrician on site to connect the generator and eliminating wear & tear on existing electrical equipment.

1200 - 2000A Standard GDS Enclosure:

Dual Purpose Docking Station39

DOCKING STATION APPLICATIONS

Dual Purpose Docking Station allows the connection of a temporary load bank unit and temporary generator from a single point of access

Full Size Padmount Enclosure

The Right Application for Your Project40

D O C K I N G S T A T I O N A P P L I C A T I O N S

Standard GDS

Temporary Generator

Single Breaker SBDS

Temporary Generator & Load Bank Testing

Dual Breaker DBDS

Rotary Manual Transfer Switch41

DOCKING STATION APPLICATIONS

Rotary docking stations include an integrated ABB 3 Position Rotary switch to serve as both a dedicated manual transfer switch and a temporary generator docking station in one complete package

50 - 600A Rotary Docking Station

Theater Company Switch42

DOCKING STATION APPLICATIONS

Dedicated output panel for the safe and legal connection of stage, lighting, audio/visual and additional power distribution equipment. Commonly found in stadiums, theaters and music venues.

50 - 400A Company Switch:

UL 891 Switchboards43

DOCKING STATION APPLICATIONS

Fully customizable 891 capabilities to seamlessly integrate your docking station solution directly into the facility's electrical distribution

Integrated Switchboard & GDS

Integrated load side distribution or SER interlocked breaker line ups with Temporary Generator connections allow for a complete turnkey equipment

Customizable Solutions

Flexible solutions that fit your project needs - available with any UL489 manufacturer (Square D, Siemens, ABB, etc.)

Turnkey Installation

Fully installed with lifting eyes and fork lift pockets for ease of transportation on the job site.

4000A Dual Purpose Switchboard Enclosure

Medium Voltage Docking Stations44

DOCKING STATION APPLICATIONS

Medium Voltage units for 35KV and under applications

Built to IEEC Standards

Available up to 800A at 35kV - Units are built and designed to meet IEEC Standards

Dead Break or Hardwire Connections

Units can be built w/ 2 Hole Compression Lugs or Dead Break/Load Break Connections

100-800A Up To 35KV Enclosure:

Jonathan Sunde Jon.sunde@Trystar.com