Basic Electrical Installation Work

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Strana 280 z 399

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Suitable for continuous immersion water.5mm FIGURE 13.5mm, such as a tool wire.Statutory regulations and codes practice 269 Where degree protection not specified, the number replaced by an ‘X’ which simply means that the degree protection not specified although some protection may afforded. Protected against heavy seas powerful jets water. No dust ingress. Dust tight. Protected against harmful ingress of water when immersed to depth between 150mm and 1m. Protected against water spraying an angle 60°. . Protected against a solid object greater than 12mm, such as a finger. Protected against a solid object greater than 50mm, such as a hand. Prevents ingress sufficient to cause harm.3. Non-protected. The index protec- tion codes shown Fig. Dust protected. Protected against a solid object greater than 1. 0 0 1 2 3 4 5 6 1 2 3 4 5 6 7 8 1 METRE 2. Protected against submersion. Prevents ingress of dust sufficient to cause harm. Protected against a solid object greater than 2.3 Index protection codes. Protected against dripping water when tilted 15°.0mm, such as thin wire strips. Protected against jets water from any direction. First number (DEGREE PROTECTION AGAINST SOLID OBJECT PENETRATION) Second number (DEGREE PROTECTION AGAINST WATER PENETRATION) Non-protected. Protected against water dripping vertically, such as condensation. 13. Protected against water splashing from any direction. The ‘X’ used instead ‘0’ since ‘0’ would indicate that protection was given