硅橡胶绝缘 meaning in English

silicon rubber insulation
silicone rubber insulation

3 . when installing and doing other operation , should avoid the mechanical damage to the silicone rubber insulation layer
3在安装及其它操作过程中，应避免对硅橡胶绝缘层的机械损伤
Rubber insulated cables of rated voltages up to and including 450 750v . part 3 : heat resistant silicone insulated cables
额定电压450 750v及以下橡胶绝缘电缆第3部分:耐热硅橡胶绝缘电缆