Z

Warning zigzags at crossings.

Switch bypassing a zone during fault.

Cutter creating zigzag edges for symbols.

Panel grouping zone switches.

Additive improving paint durability/opacity.

Switchgear controlling spray or broom zones from the cab. Simplifies operation by grouping sections under labelled toggles.

Treatment on steel to resist corrosion.

Switch overriding auto zones in manual mode.

Sacrificial zinc anodes mounted on steel tanks or bodies. Protect the metalwork from rust in wet and salty environments.

Maintenance log recording inspections of each system zone. Aids technicians during scheduled servicing and audits.