Turnstiles.

[B-inspector]

How do you bond a turnstile considering the moving parts?

 

[iwire]

How do you bond a turnstile considering the moving parts?

Why would I be bonding the moving parts of a turnstile?

 

[mgookin]

what kind of turnstile?

 

[kwired]

If it must be bonded, a contact device like the brushes in wound rotor motors.

 

[iwire]

If it must be bonded, a contact device like the brushes in wound rotor motors.

If it is not NEC bonding I think its going to be tough to find those listed for grounding.

 

[wwhitney]

Why would I be bonding the moving parts of a turnstile?

Too close to a pool?

Cheers, Wayne

 

[B-inspector]

earthing devices for bonding a turnstile

earthing devices for bonding a turnstile

If it must be bonded, a contact device like the brushes in wound rotor motors.

Thanks for your response, I got the same reference brush earthing devices they use this system to bond train wheels to the tracks.. There are many reasons you bond fences and gates mostly for safety.

 

[B-inspector]

what kind of turnstile?

man gate full height turnstile.

 

[iwire]

I got the same reference brush earthing devices they use this system to bond train wheels to the tracks.

Whatever you choose to use must comply with this.

250.8 Connection of Grounding and Bonding Equipment.

(A) Permitted Methods. Grounding conductors and bond-ing jumpers shall be connected by one of the following means:

(1) Listed pressure connectors

(2) Terminal bars

(3) Pressure connectors listed as grounding and bonding equipment

(4) Exothermic welding process

(5) Machine screw-type fasteners that engage not less than two threads or are secured with a nut

(6) Thread-forming machine screws that engage not less than two threads in the enclosure

(7) Connections that are part of a listed assembly

(8) Other listed means

There are many reasons you bond fences and gates mostly for safety.

Sure, around pools or substations but in general no.

 

[iwire]

man gate full height turnstile.

What code section can you cite that requires bonding this gate?

 

[kwired]

If it is not NEC bonding I think its going to be tough to find those listed for grounding.

Center pivot irrigation machines typically have a 10 pole "slip ring" at the pivot point. The equipment grounding conductor is one of the conductors passing through one of those poles - how else would you ensure a ground on equipment that can go around and around an unlimited number of times?

Of course those machines are listed as a complete assembly.

 

[iwire]

Of course those machines are listed as a complete assembly.

Bingo.