books safety issues with old designs
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# Security and safety in architectural designs
# Safety problems in hospitals
# Safety and security signs design
# Safety first road safety series
# Safety from the dangers and safety of smoking
# What is occupational safety?
# Nuclear safety issues
# Safety issues
# Safety and Legal Issues
# formal designs
# Introduction to occupational safety
# antiquity costume designs
# Real experimental designs
# Experimental and semi-experimental designs
# The most important engineering designs of Leonardo da Vinci
# Initial designs
# traditional designs
# Execution and designs
# Designs and Variations
# pre-finished designs
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Source: wikipedia.org
مشاكل السلامة مع التصاميم القديمة (Info)
لا يوجد ما هو أخطر من السخانات الكهربائية والتي تعمل بنفس المبدأ ولكن مع الماء العادى . لذلك يجب الحرص على تأريض التصاميم القديمة لضمان سلامة الأجهزة والعمال، ولتوفير مسار للتيار في حالة الأحمال الزائدة، أو في حالة وجود خطآ .
