How do planes discharge static electricity when refuelling?

[says]

I know that planes have static dischargers (static wicks) on the trailing edges of wings to discharge static electricity when they are flying.

I was wondering how a plane, let's say with electrically resistive fibreglass wings, would discharge this without having sparks ignite while it's stationary and being refuelled?

 

[davenn]

I know that planes have static dischargers (static wicks) on the trailing edges of wings to discharge static electricity when they are flying.

I was wondering how a plane, let's say with electrically resistive fibreglass wings, would discharge this without having sparks ignite while it's stationary and being refuelled?

they use earthing straps that are connected before fuel connections are made

google is your friend. there are lots of links

 

[Drakkith]

they use earthing straps that are connected before fuel connections are made

Indeed. We used similar straps keep our cruise missiles grounded when not uploaded to an aircraft. One of the first steps of the prior-to-maintenance checklist is Check to ensure the missile is grounded.

I don't know how many grounding cables I nearly tripped over in my career... we'd have those things strung all over the place when the maintenance bays were full of cruise missiles awaiting maintenance.

 

[berkeman]

Check to ensure the missile is grounded.

Wiser words have never been spoken...

 

[CWatters]

Google finds picture of Earth strap reel on refueling bowser..