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Frequently Asked Questions
Why is it called that?
From the legs it stands on.
They hold it above the ground.
Mud, water and debris sit below.
Outlets stay clear of all three.
It is a shape with a purpose.
What is it plugged into?
Whatever feeds that part of the site.
A temporary panelboard usually.
Sometimes a generator directly.
Sometimes another spider box.
The supply changes as work moves.
Why is earth fault protection mandatory here?
Because hand tools plug in at this point.
Operators stand on wet ground.
Cords get damaged constantly.
Upstream protection cannot be assumed.
So it lives on the box.
How many can be connected in series?
Fewer than people assume.
Voltage drops with every link.
Load accumulates on one supply.
Fault clearing gets slower at the far end.
Nothing looks wrong until it matters.
How rough is the handling really?
Rougher than any other equipment.
Thrown into vans.
Dropped off tailgates.
Dragged by the cord.
Left out through the weekend.
What inspection do they need?
Regular, and recorded.
Cords and plugs get damaged first.
Protection devices need testing, not looking at.
Casings crack where they are dropped.
Hire returns are the natural point.
Are they suitable in standing water?
Up to their rating, and no further.
The legs exist for this.
Outlets must stay above the water.
Covers belong on unused sockets.
Submersion is a different question entirely.