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507.333.3990 | TRYSTAR.COM Trystar ® Generator Docking Stations quickly and safely connect a portable energy source to any business or public building, protecting you from an expensive and potentially dangerous power outage. Built with the installing electrical contractor in mind, our unique design helps prevent theft and hazardous disconnects. READ THE EXCERPT BELOW TO LEARN HOW RECENT CHANGES TO THE NEC CODE MAY AFFECT YOUR BUSINESS, AND LEARN HOW WE CAN HELP. CHANGE TO NEC CODE – TEMPORARY POWER SOURCE ATTENTION: (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 repair, 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 source of power shall comply with the following: 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 power source and the emergency power source shall be in accordance with 700.12. 3. The connection point for the portable or temporary alternate source shall be marked with the phase rotation and system bonding requirements. 4. Mechanical or electrical interlocking shall prevent inadvertent interconnection of power sources. 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. It shall be permissible to utilize manual switching to switch from the permanent source of power to the portable or temporary alternate source of power and to utilize the switching means for connection of a load bank. Informational Note: There are many possible methods to achieve the requirements of 700.3(F). See Figure 700.3(F) for one example. CODE LANGUAGE: 700.3 TESTS AND MAINTENANCE

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Page 1: ATTENTION: Trystar Generator Docking Stations …...507.333.3990 | TRYSTAR.COM Trystar¨ Generator Docking Stations quickly and safely connect a portable energy source to any business

507.333.3990 | TRYSTAR.COM

Tr y s t a r ® G e n e r a t o r D o c k i n g S t a t i o n s q u i c k l y a n d s a f e l y c o n n e c t a p o r t a b l e e n e r g y s o u r c e t o a n y b u s i n e s s o r p u b l i c b u i l d i n g , p r o t e c t i n g y o u f r o m a n e x p e n s i v e a n d p o t e n t i a l l y d a n g e r o u s p o w e r o u t a g e . B u i l t w i t h t h e i n s t a l l i n g e l e c t r i c a l c o n t r a c t o r i n m i n d , o u r u n i q u e d e s i g n h e l p s p r e v e n t t h e f t a n d h a z a r d o u s d i s c o n n e c t s .

R E A D T H E E X C E R P T B E L O W T O L E A R N H O W R E C E N T C H A N G E S T O T H E N E C C O D E M AY A F F E C T Y O U R B U S I N E S S , A N D L E A R N H O W W E C A N H E L P.

CHANGE TO NEC CODE – TEMPORARY POWER SOURCE

AT TENT ION:

(F) TEMPORARY SOURCE OF POWER FOR MAINTENANCE OR REPAIR OF THE ALTERNATE SOURCE OF POWER.

I f t h e e m e r g e n c y s y s t e m r e l i e s o n a s i n g l e a l t e r n a t e s o u r c e o f p o w e r , w h i c h w i l l b e d i s a b l e d f o r m a i n t e n a n c e o r r e p a i r , t h e e m e r g e n c y s y s t e m s h a l l i n c l u d e p e r m a n e n t s w i t c h i n g m e a n s t o c o n n e c t a p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e o f p o w e r , w h i c h s h a l l b e a v a i l a b l e f o r t h e d u r a t i o n o f t h e m a i n t e n a n c e o r r e p a i r . T h e p e r m a n e n t s w i t c h i n g m e a n s t o c o n n e c t a p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e o f p o w e r s h a l l c o m p l y w i t h t h e f o l l o w i n g :

1 . C o n n e c t i o n t o t h e p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e o f p o w e r s h a l l n o t r e q u i r e m o d i f i c a t i o n o f t h e p e r m a n e n t s y s t e m w i r i n g .

2 . Tr a n s f e r o f p o w e r b e t w e e n t h e n o r m a l p o w e r s o u r c e a n d t h e e m e r g e n c y p o w e r s o u r c e s h a l l b e i n a c c o r d a n c e w i t h 7 0 0 .1 2 .

3 . T h e c o n n e c t i o n p o i n t f o r t h e p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e s h a l l b e m a r k e d w i t h t h e p h a s e r o t a t i o n a n d s y s t e m b o n d i n g r e q u i r e m e n t s .

4 . M e c h a n i c a l o r e l e c t r i c a l i n t e r l o c k i n g s h a l l p r e v e n t i n a d v e r t e n t i n t e r c o n n e c t i o n o f p o w e r s o u r c e s .

5 . T h e s w i t c h i n g m e a n s s h a l l i n c l u d e a c o n t a c t p o i n t t h a t s h a l l a n n u n c i a t e a t a l o c a t i o n r e m o t e f r o m t h e g e n e r a t o r o r a t a n o t h e r f a c i l i t y m o n i t o r i n g s y s t e m t o i n d i c a t e t h a t t h e p e r m a n e n t e m e r g e n c y s o u r c e i s d i s c o n n e c t e d f r o m t h e e m e r g e n c y s y s t e m .

I t s h a l l b e p e r m i s s i b l e t o u t i l i z e m a n u a l s w i t c h i n g t o s w i t c h f r o m t h e p e r m a n e n t s o u r c e o f p o w e r t o t h e p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e o f p o w e r a n d t o u t i l i z e t h e s w i t c h i n g m e a n s f o r c o n n e c t i o n o f a l o a d b a n k .

Informational Note : There are many possible methods to achieve the requirements of 700.3 (F) . See Figure 700.3 (F) for one example.

CODE LANGUAGE: 700.3 TESTS AND MAINTENANCE

Page 2: ATTENTION: Trystar Generator Docking Stations …...507.333.3990 | TRYSTAR.COM Trystar¨ Generator Docking Stations quickly and safely connect a portable energy source to any business

F i g u r e 7 0 0 . 3 ( F ) ( S e e N E C a n d i l l u s t r a t i o n p r o v i d e d a t t h i s c h a n g e f o r c o m p l e t e f i g u r e ) E x c e p t i o n : T h e p e r m a n e n t s w i t c h i n g m e a n s t o c o n n e c t a p o r t a b l e o r t e m p o r a r y a l t e r n a t e s o u r c e o f p o w e r , f o r t h e d u r a t i o n o f t h e m a i n t e n a n c e o r r e p a i r , s h a l l n o t b e r e q u i r e d w h e r e a n y o f t h e f o l l o w i n g c o n d i t i o n s e x i s t s :

1 . A l l p r o c e s s e s t h a t r e l y o n t h e e m e r g e n c y s y s t e m s o u r c e a r e c a p a b l e o f b e i n g d i s a b l e d d u r i n g m a i n t e n a n c e o r r e p a i r o f t h e e m e r g e n c y s o u r c e o f p o w e r.

2 . T h e b u i l d i n g o r s t r u c t u r e i s u n o c c u p i e d a n d f i r e s u p p r e s s i o n s y s t e m s a r e f u l l y f u n c t i o n a l a n d d o n o t r e q u i r e a n a l t e r n a t e p o w e r s o u r c e .

3 . O t h e r t e m p o r a r y m e a n s c a n b e s u b s t i t u t e d f o r t h e e m e r g e n c y s y s t e m .

4 . A p e r m a n e n t a l t e r n a t e e m e r g e n c y s o u r c e , s u c h a s , b u t n o t l i m i t e d t o , a s e c o n d o n - s i t e s t a n d b y g e n e r a t o r o r s e p a r a t e e l e c t r i c u t i l i t y s e r v i c e c o n n e c t i o n , c a p a b l e o f s u p p o r t i n g t h e e m e r g e n c y s y s t e m , e x i s t s .

T h e r e q u i r e m e n t o f a r t i c l e 7 0 0 E M E R G E N C Y S Y S T E M a p p l i e s t o b u i l d i n g s s u c h a s : H o s p i t a l s a n d h e a l t h c a r e f a c i l i t i e s , p u b l i c s a f e t y c o m m u n i c a t i o n s , p l a c e s o f l a r g e a s s e m b l y ( i n c l u d i n g h o t e l s , t h e a t e r s , s p o r t s a r e n a s , e t c . ) a n d i n d u s t r i a l p r o c e s s e s w h e r e t h e i n t e r r u p t i o n o f p o w e r w o u l d c r e a t e s e r i o u s h e a l t h h a z a r d s .

F O R A S S I S T A N C E , O R T O O B T A I N D R A W I N G S O R E L E C T R I C A L O N E - L I N E S P L E A S E C O N T A C T T R Y S T A R A T 5 0 7 - 3 3 3 - 3 9 9 0 , O R E M A I L U S A T I N F O @ T R Y S T A R . C O M

Excerpt taken from Analysis of Changes, NEC-2017

700.3(F)

TEMPORARY SOURCE OF POWER FOR MAINTENANCE OR REPAIR OF THE ALTERNATE SOURCE OF POWER

EMERGENCYPOWER SOURCE

TRYSTAR GENERATOR DOCKING STATION

700.5 TRANSFER EQUIPMENT

700.3(F)SWITCHING MEANS AND INTERLOCK

NORMALPOWER SOURCE

EMERGENCY LOADReproduction of NEC Figure 700.3(F)

507.333.3990 | TRYSTAR.COM

Page 3: ATTENTION: Trystar Generator Docking Stations …...507.333.3990 | TRYSTAR.COM Trystar¨ Generator Docking Stations quickly and safely connect a portable energy source to any business

National Electric Code in EffectOctober 1, 2019