BS EN 1502:2020 pdf download.Inland navigation vessels一Boarding stairs.
4.4.1 The steps shall be designed for a rated load of 1.5 kN.
4.4.2 The boarding stair shall be designed for two rated loads of 1.5 kN each, applied simultaneously to the top and bottom steps.
4.4.3 Each handrail shall be able to withstand a force of 0.3 kN applied in any direction.
5 Construction
5.1 Welded construktlon
Any connections, except the spacers, shall be welded. The welds on the hollow sections shall be watertight.
5.2 Buoyancy
Boarding stairs shall be buoyant.
5.3 Safe tread
The treads of the steps shall be non skid.
5.4 Edges
Boarding stairs shall not have burrs or other sharp points that can lead to injuries.
5.5 Mass
The mass ol a hoarding stair shall not exceed the values given in Table 1.
5.6 MaterIals
Boarding stairs shall be made of appropriate materials, e.g. aluminium or FRP (fibre reinforced polymers).
NOTE Examples for suitable seirn-finished alumirnum products are given In EN 485-1 or EN 754-1.
Exposed surfaces shall be resistant against impact of weather. LJV-rays and oil/fuel or durably protected.
6 Testing
6.1 General
For boarding stairs produced in series, the test is performed as a type test. One boarding stair shall be selected at random out of a series of maximum of 20.
Requirements which are stated in this document without a special testing method shall be tested by measurement and/or visual inspection, and/or practical function test.
6.2 Test of materials
Test of materials shall be made by submitting material certificates.
4.4.2 The boarding stair shall be designed for two rated loads of 1.5 kN each, applied simultaneously to the top and bottom steps.
4.4.3 Each handrail shall be able to withstand a force of 0.3 kN applied in any direction.
5 Construction
5.1 Welded construktlon
Any connections, except the spacers, shall be welded. The welds on the hollow sections shall be watertight.
5.2 Buoyancy
Boarding stairs shall be buoyant.
5.3 Safe tread
The treads of the steps shall be non skid.
5.4 Edges
Boarding stairs shall not have burrs or other sharp points that can lead to injuries.
5.5 Mass
The mass ol a hoarding stair shall not exceed the values given in Table 1.
5.6 MaterIals
Boarding stairs shall be made of appropriate materials, e.g. aluminium or FRP (fibre reinforced polymers).
NOTE Examples for suitable seirn-finished alumirnum products are given In EN 485-1 or EN 754-1.
Exposed surfaces shall be resistant against impact of weather. LJV-rays and oil/fuel or durably protected.
6 Testing
6.1 General
For boarding stairs produced in series, the test is performed as a type test. One boarding stair shall be selected at random out of a series of maximum of 20.
Requirements which are stated in this document without a special testing method shall be tested by measurement and/or visual inspection, and/or practical function test.
6.2 Test of materials
Test of materials shall be made by submitting material certificates.
