Simrad AP26, AP27 manual IP protection, Tests

Technical specifications

8.13IP protection

Each part of a Simrad autopilot system has a two digits IP protection code.

The IP rating is a method to classify the degree of protection against solid objects, water ingress and impact afforded by electrical equipment and enclosures. The system is recognised in most European countries and is set out in a number of British and European standards.

The first code number describes the protection against solid objects, and the second number describes the protection against liquids.

	FIRST NUMBER		SECOND NUMBER
	Protection against solid		Protection against liquids
	objects
IP	TESTS	IP	TESTS
0	No protection	0	No protection
1	Protection against solid	1	Protected against vertically falling
	objects up to 50 mm, eg.		drops of water (eg. condensation).
	accidental touch by hands.
2	Protection against solid	2	Protected against direct sprays of water
	objects up to 12 mm, eg.		up to 15° from the vertical.
	fingers.
3	Protection against solid	3	Protected against sprays to 60° from the
	objects over 2.5 mm (tools +		vertical.
	wires)
4	Protection against solid	4	Protected against water sprayed from
	objects over 1 mm (tools +		any direction.
	wires + small wires)
5	Protection against dust -	5	Protected against low pressure jets of
	limited ingress (no harmful		water from all directions - limited
	deposit)		ingress permitted.
6	Totally protected against	6	Protected against strong jets of water,
	dust		eg. for use on shipdecks - limited
			ingress permitted.
		7	Protected against the effects of
			immersion between 15 cm and 1 m.
		8	Protected against long periods of
			immersion under pressure.

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